Slashdot Mirror


France and Japan Planning New Supersonic Jet

jonerik writes "According to this article from the Associated Press, Japan and France are cooperating on research to produce a supersonic passenger plane that would be able to carry 300 passengers (three times as many as the Concorde) and fly from New York City to Tokyo in a mere six hours. Current plans are for the plane to be able to cruise at mach 2.4 while reducing the noise and high fuel consumption associated with the Concorde during its years of service. Although Japan had previously done extensive research towards building a 250-person mach 1.6 passenger jet, the agreement with France - announced at the annual Paris Air Show on Tuesday - represents a interesting shift in technological alliances given the Japanese aviation industry's longstanding ties to the United States. 'To research closely in this area with the Europeans does represent something new,' said Yoshio Watanabe, an official with The Society of Japanese Aerospace Companies, which is heading the new initiative on the Japanese side."

477 comments

  1. Measurements by fembots · · Score: 1

    Fingers crossed no headroom, and especially legroom is sacrified.

    1. Re:Measurements by netsharc · · Score: 3, Funny

      I'll assume you're American... so how's it going in Iraq?

      --
      What time is it/will be over there? Check with my iPhone app!
    2. Re:Measurements by Anonymous Coward · · Score: 0

      We've turned a corner! Escalating violence means victory is near!

      God Bless America!

    3. Re:Measurements by Anonymous Coward · · Score: 0

      I wouldn't call it a loss, more like a tie.

    4. Re:Measurements by Jozer99 · · Score: 0

      Crappy actually, but that doesn't stop me from being a fat American pig and making fun of frenchies. You see American logic now?

    5. Re:Measurements by Anonymous Coward · · Score: 0

      Pretty well. But then, considering we haven't fucking surrendered we're light years ahead of the French by any measurement anyway.

    6. Re:Measurements by Anonymous Coward · · Score: 0

      Vietnam? Oh no, that wasn't a surrender. You just plain straight out lost.

    7. Re:Measurements by Anonymous Coward · · Score: 0

      How many wars have you won? None!
      How many wars have you lost? All of them!

      How many wars have we won? At least six off of the top of my head!

      1. Revolution
      2. 1812
      3. WW I
      4. WW II
      5. Korean War
      6. Gulf War I

      How many wars have we lost? One.

      Which track record is better? I'd say our is doing much better!

    8. Re:Measurements by boomfart · · Score: 1

      Before mouthing off about how great USA is at winning wars get som facts right a simple look a the casualties of WW I http://www.firstworldwar.com/features/casualties.h tm

      should put the US influence on the out come of this war into perspective, WW II had a greater US influence but there were still more French military casualties from a smaller population. http://www.valourandhorror.com/DB/BACK/Casualties. php

    9. Re:Measurements by Anonymous Coward · · Score: 0

      Uh...That ain't a teat he's suckin.

    10. Re:Measurements by SocietyoftheFist · · Score: 1

      I'm sure it will be like the Concorde, all first class. People that need/want to travel between NYC and Tokyo in 6 hours will pay good money for it. I know my life was saved getting bumped to business class when I took the 11 hour flight from LA to Tokyo

    11. Re:Measurements by Anonymous Coward · · Score: 2, Funny

      Does it only count as a loss if Iraq invades and conquers the continental USA?

    12. Re:Measurements by meadowsp · · Score: 1

      That's the height of your culture is it? Eminmen and coke.

    13. Re:Measurements by Anonymous Coward · · Score: 0

      Oh just stop it. Implying that the number of causualties in a war is the best measure of who "won" a war is just foolish.

      George Patton (General, USA) put it best, "No bastard won a war by dying for his country. He won it by making the other poor dumb bastard die for his."

      AFA the "Great War"; there is a good case to be made that the US should have stayed out of it altogether (I'm sure many US families wish that had been the case). The European countries were essentially bled white of cannon fodder to continue the carnage (You can't keep throwing tens of thousands of young men into the machine gun meat grinder forever). Chances are good that the "peasants" in the various kingdoms would have revolted and chucked their respective monarchies resulting in socialist takeover of government (such was the mood at the time).

    14. Re:Measurements by fbjon · · Score: 1

      It's clear you don't own a GBA SP and a stash of games. That's all you need, and an occasional toilet visit for the need, and to stretch legs/other appendages.

      --
      True confidence comes not from realising you are as good as your peers, but that your peers are as bad as you are.
    15. Re:Measurements by Anonymous Coward · · Score: 1, Informative

      Vietnam. Yep. We got sucked into that one by the French. Should have stayed out of that one. Or, at least not fought it as a damned police action. The only time we were on track was when we took the war home to the NVA.

      In virtually every major action the coalition forces (yes there were other folks there, except the French who had gone home, besides the US) beat the NVA on the battlefield. It was Jane Fonda and her ilk who undermined domestic support that caused politicians to fear being tossed out of office that finally drove the US out of 'Nam.

      That, by the way, is very probably what will happen in Iraq. While the US (and non-combatent Iraqi) losses seem high, by 'Nam standards they are pretty low. We were seeing hundreds of casaulties, on all sides, a day back then.

    16. Re:Measurements by Anonymous Coward · · Score: 1, Informative

      Being British I shouldn't do this but I can't help it:

      WW I - France on winning side
      WWII - France on winning side (both actually :-)
      Korea - Odd definition of win, I'd say a draw at best
      Gulf War 1 - France on winning side again
      "The First Persian Gulf War,. Jan.-Feb., 1991, was an armed conflict between Iraq and a coalition of 32 nations including the United States, Britain, Egypt, France, and Saudi Arabia."

    17. Re:Measurements by It+doesn't+come+easy · · Score: 1

      Doesn't anyone consider it facinating that the world is as we know it today because of one defining event: Japan attacked Pearl Harbor and forced the US into WWII against Germany, Japan and Italy? (The world today: US is the leading economic and military power, Japan is kicking everyone's ass when it comes to quality manufacturing, Europe has had to create the European Union to compete successfully with the US and Japan, China and India are coming up fast and threatening all of the established players) Ever wonder how it might be different if they hadn't? Would Germany be the world's only superpower? China? God I wish I could get my slider machine working...

      --
      The NSA: The only part of the US government that actually listens.
    18. Re:Measurements by Conanymous+Award · · Score: 1

      Your neo-con, FAUXnews-programmed troll brain might not like it, but I still recommend you to read this.

    19. Re:Measurements by TheWickedKingJeremy · · Score: 1

      Crappy actually, but that doesn't stop me from being a fat American pig and making fun of frenchies. You see American logic now?

      Yes, we see the logic, and frankly it's not all that impressive. As an American, I wish to be formally excluded from you and your kind. Please, in the future, refer to people like yourself not as "Americans", but qualified more fully as "Simplistic Fox-News American Rushbots." Much appreciated...

      --

      my religion lies somewhere between buddhism and super monkey ball - pamphlet?
    20. Re:Measurements by Keysh · · Score: 1

      Actually, that's two defining events. First, Japan attacked Pearl Harbor and forced the US into war with Japan; second, Hitler declared war on the US a few days later (with Mussolini rather predictably following soon after). Why Hitler did this has never been entirely clear; the Axis agreement was a mutual defense treaty, so Germany was not obligated to join Japan if Japan attacked another country first.

      So there's the possibility (perhaps not a very high one) that WWII could have remained split into unrelated Pacific/Asian and European sectors, with the US fighting Japan but not Germany.

      --
      -- Keysh (Peter Erwin)
  2. Does it represent a shift? by wa1ter · · Score: 4, Informative

    represents a interesting shift in technological alliances given the Japanese aviation industry's longstanding ties to the United States

    Does it really or are they just trying to benefit from France's experiences with the concorde for this project?
    Nowhere in the article does it say it'll change it's alliance for anything else.

    --
    Sig? What's this sig thing I hear people talking about?
    1. Re:Does it represent a shift? by rsynnott · · Score: 1

      Erm, they're going to put billions into a project with a rival. Sounds like a shift in alliances to me...

      --
      Me (Blog)
    2. Re:Does it represent a shift? by dpilot · · Score: 2, Insightful

      Another post mentions that there's no interest in the US in a supersonic jet, because of restrictions over land. This says nothing of Reagan's old Orient Express hypersonic proposal, or the basic desire to furnish jets for overseas flight.

      Look at it from another perspective... What does the US bring to the table, any more. G.E.'s new jet engine research facility is in India. US software jobs are migrating to India, and the semiconducter industry has been migrating to the Far East for over a decade. We're even starting to oursource our weapon systems. "If present trends continue," (and I'm hopefully quoting Lester Thoreau of MIT on this) by the time the keel is laid on any supersonic jet, the only thing the US will have to offer is overpaid executives.

      --
      The living have better things to do than to continue hating the dead.
    3. Re:Does it represent a shift? by vought · · Score: 4, Interesting
      Does it really [represent a shift away from the U.S. by Japan] or are they just trying to benefit from France's experiences with the concorde for this project?


      I'm sure it's for both reasons; a big deal was made of Japan's growing skill and interest in building their own large aircraft parts during the '90s.

      Boeing executives were little bit wary about outsourcing so much of the 777's fine machine work and wing structural work to Japanese firms - partially because they knew Japan would one day be ready to build large aircraft on their own.

      Japanese firms have learned a lot about how to build an aircraft from us over the past ten or so years, and now they're shifting toward working with the French, who have experience in the specific type of comercial travel they're interested in building for.

    4. Re:Does it represent a shift? by Malc · · Score: 1, Flamebait

      I'm so sure that France's experience with Concorde are much use from an engineering perspective. Most of the people who designed Concorde have retired. Even the politicians who worked with the British are mostly gone too. What the French are good at is spending tax payers money on national prestige projects... and the Japanese know this.

    5. Re:Does it represent a shift? by 16K+Ram+Pack · · Score: 1
      If I had to guess, it's more that Japan will benefit from France's money.

      The French government will create lots of jobs through things like soft loans to their aerospace industry.

    6. Re:Does it represent a shift? by wa1ter · · Score: 1

      It's not a rival when it comes to supersonic flight as the US isn't interested in a supersonic flight program.
      And, as it won't be a real competitor to regular flight anytime soon, it's not unlikely they'll keep their alliance with the US for regular flight.

      --
      Sig? What's this sig thing I hear people talking about?
    7. Re:Does it represent a shift? by Analogy+Man · · Score: 1
      Boeing executives were little bit wary about outsourcing so much of the 777's fine machine work and wing structural work to Japanese firms - partially because they knew Japan would one day be ready to build large aircraft on their own.

      Consider Boeing has to "bet the company" laying out the $10-15 BILLION for a new airplane program while the biggies in Japan have cash reserves of that magnitude. Then consider that a huge portion of the airplane market is Pacific rim. Put the two together and you have a scary potential 3rd player in a field big enough for two (there is a reason Lockheed and McD are either out of the commercial business or merged).

      --
      When the people fear their government, there is tyranny; when the government fears the people, there is liberty.
  3. It would shure be fun! by Bananatree3 · · Score: 3, Funny
    could you imagine wing walking at that speed! That would be a BLAST! {Think of all the money people would pay to see that :)}

    yes, I know it is a joke, but who doesn't like wing walking?

    1. Re:It would shure be fun! by Anonymous Coward · · Score: 0

      That would be a BLAST!

      You're absolutely right. It would be a BLAST! your skin off, followed by your muscle tissue and major organs. Fun all around!

    2. Re:It would shure be fun! by gabbarbhai · · Score: 1
      but who doesn't like wing walking?

      umm. Wing walking, I don't know. But I sure don't want wing singing

    3. Re:It would shure be fun! by zippthorne · · Score: 2, Funny

      me.

      --
      Can you be Even More Awesome?!
    4. Re:It would shure be fun! by intangible · · Score: 2

      But, would it be cheaper than liposuction?

  4. Engine Noise? by niteguy · · Score: 3, Interesting

    I thought the problem was the sonic booms, not the engine noise. A little difficult to fly from New York to Tokyo in six hours if you've gotta go around South America, isn't it?

    1. Re:Engine Noise? by wall0159 · · Score: 1

      Scraping to the bottom of my brain (it's been a while), I think sonic booms only occur when the speed of the vehicle is equal to the speed of sound. Since this aircraft will travel at Mach 1.6, there will be two sonic booms - one during acceleration, and one during deacceleration. I'm sure someone will correct my if I'm wrong ;-).

    2. Re:Engine Noise? by bobbis.u · · Score: 1

      When the plane is cruising at 50,000+ feet, I don't think the sonic boom would be very strong (air less dense) and I am fairly sure it would not reach the ground.

    3. Re:Engine Noise? by DeathFlame · · Score: 4, Informative

      Bing Bing Bing! We have a wrong answer!

      Sonic boom is tottaly due to pressure waves created by going faster than the speed of sound.

      http://en.wikipedia.org/wiki/Sonic_boom

    4. Re:Engine Noise? by tinrobot · · Score: 2, Funny

      I would imagine they would fly over the North Pole and parts of the Pacific to get from New York to Tokyo. ...but the polar bear lobby is pretty powerful.

    5. Re:Engine Noise? by Anonymous Coward · · Score: 0

      only vaguely close...

      Sonic booms are a result of pressure waves from the leading and trailing edge of the wings and fuselage - see http://en.wikipedia.org/wiki/Sonic_boom

      The reduction in noise is from modern aerofoil designed specifically to reduce or eliminate the sonic boom.

    6. Re:Engine Noise? by Anonymous Coward · · Score: 3, Informative

      Here is the flight path from New York to Tokyo:

      http://gc.kls2.com/cgi-bin/gcmap?PATH=jfk-tyo

    7. Re:Engine Noise? by Timesprout · · Score: 1

      This plane will not fly through the skies, what do you think Japan has started digging this hole for? Its going to be the worlds first internal air corridor.

      --
      Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
      What truth?
      There is no dupe
    8. Re:Engine Noise? by pegasustonans · · Score: 2, Funny

      bunching up at the event horizon

      Those are some pretty powerful engines if they can push the vessel beyond the grasp of an event horizon.

      --
      And all our yesterdays have lighted fools The way to dusty death. --Will
    9. Re:Engine Noise? by ray-auch · · Score: 1

      except concord cruised at that sort of height too - and the sonic booms definitely were a problem

    10. Re:Engine Noise? by DeathFlame · · Score: 2, Informative
      From http://en.wikipedia.org/wiki/Sonic_boom

      In the late 1950s when SST designs were being actively pursued it was thought that although the boom would be very large, they could avoid problems by flying higher. This premise was proven false when the North American B-70 Valkyrie started flying and it was found that the boom was a very real problem even at 70,000ft (21,000m). It was during these tests that the N-wave was first characterized.

    11. Re:Engine Noise? by bobbis.u · · Score: 1

      You are correct, I have just checked my facts. Ignore my previous post!

    12. Re:Engine Noise? by Anonymous Coward · · Score: 0

      No, the "boom" travels along with the aircraft.

    13. Re:Engine Noise? by rcw-home · · Score: 1
      A little difficult to fly from New York to Tokyo in six hours if you've gotta go around South America, isn't it?

      Only a few hundred miles of a New York<->Tokyo path is over US soil, at least if you divert ever so slightly north of Alaska. Most of it is uninhabited areas of Canada, the Arctic Ocean, and Siberia.

      Google searching for 'great circle route' provides a better illustration.

    14. Re:Engine Noise? by Anonymous Coward · · Score: 2, Funny
      Bing Bing Bing! We have a wrong answer!

      Sonic boom is tottaly due to pressure waves created by going faster than the speed of sound.

      Bing Bing Bing! We have a misspelling!

    15. Re:Engine Noise? by alfrin · · Score: 1

      also partly right sonic boom is when an object moves past the speed of sound, the object is then going faster than it's sound waves , eventually some of its sound waves overlap other sound waves (the Dopler Effect)and caused constuctive interference making the sound waves have the amplitude of the two waves together which in the case of a plane creates a sonic boom. So the parentx2 was partly right, if the engine is quieter then when the sounds waves overlap their amplitude isn't has large

    16. Re:Engine Noise? by Rei · · Score: 1

      Engine noise is more of a problem for passengers. Sonic booms are less severe the longer your craft is and the higher it flies, and a 300 passenger mach 2.4 craft will be pretty darn long and fly pretty darn high. :)

      --
      Did he just go crazy and fall asleep?
    17. Re:Engine Noise? by Taurus · · Score: 1
      Wrong!

      Engine noise is irrelevent at those heights, whereas it is significant at takeoff (as we discovered over at JFK Airport).

      Sonic booms are the shock waves coming off the airplane's fuselage at speeds greater than Mach 1

      . Reduced drag==reduced shockwaves, BUT yes, the real issue is noise, and we'd ordinarily not allow routine sonic booms over North America. Heh, on the other hand, Chimpy and Cheney are always looking for a reason to drop their pants, so the Japanese might get a waiver...

      --
      You can never be too rich, too thin, or have too much bandwidth...
    18. Re:Engine Noise? by hazee · · Score: 1

      Actually, the route takes you up to the north of Canada, then down through the Bering straight.

      With a little adjustment, it's possible to fly over open ocean for a good chunk of the journey - along the top of mainland Canada and Alaska, then slow down for the Bering straight, then floor it again for a blast down through the Pacific, past the Kamchatka peninsula, and on to Tokyo.

    19. Re:Engine Noise? by justine_avalanche · · Score: 3, Informative

      The article's not refering to the sonic boom (usually happens above the ocean anyway), but to the actual engine noise.
      The concorde had the loudest engine around, and I think it was a problem for most airport noise regulation.

    20. Re:Engine Noise? by mfago · · Score: 1

      I was lucky enough to witness an SR71 flying overhead at ~80,000 ft. You could certainly hear the double shock, although it obviously wasn't as loud as the supersonic F15 flyby at much lower (1000 ft?!) altitude.

      Much work has been done to reduce shock strength (by varying the aircraft profile), so it is possible that a newer plane would have an acceptable noise profile during cruise.

    21. Re:Engine Noise? by vought · · Score: 2, Interesting

      I would tend to disagree; the shuttle sends several booms when within a few hundred miles of landing. The engines are not powered during this phase of flight - the sonic booms are caused simply by the shuttle's airframe compressing air along it's edges as it passes through the atmosphere, causing a sonic boom.

      While engine noise may be related to the sonic boom somehow, I would tend to think only in an aerodynamic sense in that a boom may be louder or stronger because of the shape of the airframe.

    22. Re:Engine Noise? by WolfWithoutAClause · · Score: 3, Informative
      The great circle route would be used (approximately) ignoring any small deviations for winds etc. Picture is here

      Looks like it goes right through Canada, quite a bit of America, and China(?)

      --

      -WolfWithoutAClause

      "Gravity is only a theory, not a fact!"
    23. Re:Engine Noise? by be-fan · · Score: 4, Informative

      Completely wrong. What event horizon?

      Shockwaves are caused by an object moving through a fluid faster than the speed of sound (ie: the speed of pressure wave propagation in the fluid). At subsonic speeds, pressure waves bouncing back from an object affect the incoming flow, basically "warning" it of the existance of the object. That's how the fluid can flow smoothly around the object --- the pressure waves caused the fluid's path to change long before it hit the object. At supersonic velocities, the pressure waves don't move fast enough to affect the incoming flow. So the fluid cannot flow smoothly around the object, and a shock wave is created where the fluid has to instantaneously react to the presence of the object.

      --
      A deep unwavering belief is a sure sign you're missing something...
    24. Re:Engine Noise? by jcr · · Score: 2, Funny

      That depends on which way you're heading towards that event horizon ;-)

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    25. Re:Engine Noise? by Cecil · · Score: 1

      That's Russia, actually. Maybe this map will clear things up a little.

    26. Re:Engine Noise? by westlake · · Score: 2, Interesting
      Only a few hundred miles of a New YorkTokyo path is over US soil,

      But the path arcs across upstate New York and southern Ontario, Hamilton, and Toronto. That is not an easy sell politically.

    27. Re:Engine Noise? by corngrower · · Score: 1

      Interesting that the great circle route between NY and Tokyo is mostly over coastal regions.

    28. Re:Engine Noise? by dimplemonkey · · Score: 1

      So in addition to life rafts, they would also be packing vaccuum sealed parkas?

    29. Re:Engine Noise? by Algan · · Score: 2, Interesting

      When I flew that route last year we took a big fat detour to the right of the Kamchatka peninsula... guess good old Russians still have some toys hidden out there :)

      Anyway, I guess the French and the Japanese would be more concerned with flying from Paris to Tokyo :)

      --
      If con is the opposite of pro, is Congress the opposite of progress?
    30. Re:Engine Noise? by Vellmont · · Score: 1

      And most of the trip is uninhabitated tundra, or ocean. Alter the course a little and fly over Hudson bay, and you can make even more of the flight supersonic without pissing anyone off with sonic booms.

      I'd still guess they plan to try to solve the boom problem though. Milk runs between Tokyo and NYC won't pay for the development of this thing, and there aren't that many places to go between where booms won't be a problem.

      --
      AccountKiller
    31. Re:Engine Noise? by Dougy · · Score: 1

      Engine noise is terrible for anyone under the flight path. I live a few miles from heathrow and the concorde used to fly over my house every day - I can assure you engine noise was a problem.

    32. Re:Engine Noise? by MullerMn · · Score: 1

      Thanks for that. That's the clearest explanation of a sonic boom I've read.

    33. Re:Engine Noise? by grimJester · · Score: 1

      Looks like it goes right through Canada, quite a bit of America, and China(?)

      The last part isn't China; it's the eastern tip of Siberia. Not a lot of population there.

    34. Re:Engine Noise? by Analogy+Man · · Score: 3, Interesting
      Right you are that engine noise is not the big issue...but you're a little confused about going around South America. For NY to Tokyo the great circle route would be over the arctic not around the south end (stretch a string point to point on a globe).

      In the 1995 timeframe I was at Boeing working on the HSCT program (Mach 2.4, 300 passengers...). The performance numbers were working out pretty well. Economics were encouraging to the point that it would slay the super jumbo since their markets overlapped (who would do choose a 14 hour flight if a 5 hour one was the same cost?). With respect to takeoff performance the wing loading at takeoff is light enough that noise profiles can be managed. Also, since this sort of airplane is likely to primarily operate out of large airports takeoff/noise performance is not the issue. In the day, overland would be down around Mach 1.4 - 1.7 rather than design point 2.4.

      The big technical challenges were:

      • materials (although this was workable)
      • emissions - not so much the quantity versus transonic aircraft but due to flying at 60,000 feet instead of at 35,000 ft. I am not an expert on the atmospheric sciences, but if I recall there was concern with triggering cloud formation and Nit. Oxide causing ozone depletion.
      • I did write an AIAA paper on analysis methods for predicting boom propogation and the issue was that even trans-pacific there are a lot of islands and ships out there regardless of how big and open it looks on a map, not to mention marine life (whales, seals, sea bird rookeries) issues. Some things can be done to soften the boom, but you just can't completely mitigate the physics of the shock wave of a 600,000 lb object traveling at Mach 2.4.
      --
      When the people fear their government, there is tyranny; when the government fears the people, there is liberty.
    35. Re:Engine Noise? by AndersOSU · · Score: 1

      I'd like some more information on how exactly they plan on reducing engine noise and improving fuel efficiency...

      Both are most definately non-trival problems. Loads and loads of money have been spent by both commercial interests and DARPA on reducing jet noise. I know at the university I went to there was a pretty serious contingent of profs in the Mech Eng department working on this problem.

      The sonic boom thing is basically a non-solvable problem, you just have to be high enough and far enough from a city before you jump to super-sonic speeds. Jest noise on the other hand could be mitigated. The primary source of jet noise is turbulent mixing at the edge of the exhaust stream, and it is a very very difficult problem.

    36. Re:Engine Noise? by nospmiS+remoH · · Score: 2, Informative

      Your wrong :). The sonic boom is from the shockwave created when the aircraft is going faster than the speed of sound (> Mach 1). Think of the shockwave as a cone with the point at the nose of the aircraft. That cone expands outward like, well, a cone. Where that cone intersects the ground, that is a sonic boom. Here is a good description

      --
      !hoD
    37. Re:Engine Noise? by AndersOSU · · Score: 1

      Enigine noise is much more a problem for the people living in houses near the airport. Then they lobby the city who puts restricions on noise.

      Then its much more a problem for the airlines because they have noise restrictions that they have to follow because someone decided that that cheap land next to the airport would be a great place to build a sub-division.

      Then its much more a problem for the aircraft builders because they have to build planes that the airliners will buy, and the airliners will only buy planes that they can fly out of the airport with all the expensive houses next to it.

      Then its much more a problem for the jet engine manufacturers because they have to build an engine that the aircraft manufacturers will buy etc. etc. etc.

      We should all follow the lead of the illustrious former mayor of my home city Carty Finkbeiner Who suggested that we should move deaf people near the airport.

    38. Re:Engine Noise? by io333 · · Score: 2, Interesting

      I thought the problem was the sonic booms, not the engine noise. A little difficult to fly from New York to Tokyo in six hours if you've gotta go around South America, isn't it?

      The Concorde went over my house once when I was in Maryland. I have no idea why. Maybe it was being diverted around thunderstorms or something. Anyway, this is how I happened to see it flying over head. I was sitting in my living room on the couch on a peaceful afternoon and OH MY GOD ITS THE END OF THE WORLD SATAN AND JESUS ARE HERE RIGHT NOW OH MY GOD! so I ran outside to watch as the earth exploded before my eyes and all it was, was the Concorde, drifting slowly overhead, at about 5000 feet (I used to fly small private planes and can estimate altitude pretty well).

      Suffice it to say, the engines on that thing were freaking LOUD, even when it was floating around at 250kts (well under supersonic), and no one, not even an aviation fan like myself would want it going over their city every day, several times a day.

    39. Re:Engine Noise? by freeweed · · Score: 2, Funny

      We're called "Canadians", thank you very much :)

      --
      Endless arguments over trivial contradictions in books written by ignorant savages to explain thunder in the dark.
    40. Re:Engine Noise? by cjh79 · · Score: 1

      uh, yah, that's why they made the Panama Canal dude.

    41. Re:Engine Noise? by Xiaran · · Score: 1

      Indeed. I used to live in Hammersmith and work in Woking.

      Hammersmith was over the inbound flight path for Concorde and Woking was under the outbound(sad I have to say was... I saw the one they floated down the Thames from London Bridge).

      From my cubicle you could tell it was leaving by the way things would fall off my desk due to the vibrations.

    42. Re:Engine Noise? by rcw-work · · Score: 1
      But the path arcs across upstate New York and southern Ontario, Hamilton, and Toronto. That is not an easy sell politically.

      The current laws say you can't fly supersonically over the US, not that you can't fly supersonic planes over the US.

      It takes a couple hundred miles to get up and down from cruise altitude anyway. It's not that big of a deal to spend that time flying subsonically.

  5. 2015? MAN.... by Spy+der+Mann · · Score: 3, Interesting

    could be in operation by 2015

    I'm betting that by 2015 there'll be a technology to make even faster yets which will hold up to 1000 people.

    Is it just me, or it really seems that large scale technological advances are going TOO slow?

    1. Re:2015? MAN.... by dancpsu · · Score: 2, Funny

      Maybe they're waiting for astronauts to see it from the moon...

      --
      "Scientists don't change their minds, they just die." -- Max Planck
    2. Re:2015? MAN.... by QuantumRiff · · Score: 3, Insightful

      Do you want to be sitting on an airliner that was designed from the ground up in a mere 18 month's? I sure don't. That's not a very long time to do thorough testing. Your thinking of software and computer, that move so fast. Software and computers that are always crashing, need reboots, and full of security holes. I would also think it would be awefully hard to get all those custom engineered parts designed and built that quickly, especially when you have to build, or retrofit a huge factory to make them.

      --

      What are we going to do tonight Brain?
    3. Re:2015? MAN.... by Tiresias_Mons · · Score: 2, Insightful

      Its because large scale technological advances aren't marketable. I mean, ultimately that's why the Concorde project was left to die out. The costs associated with maintaining the Concorde was prohibitive, so they just peacefully let it die.

      The technological advances are still being attained at a good clip, but we don't see them because profit margins are maintained by being safe and marketable while calling yourself "innovative", not by actually being innovative. Its part of the reason people want to get rid of NASA, because it doesn't give the masses something easily consumable like a "War on Terror" or welfare or porn or the internet or whatever...

      --
      "But that's just my opinion, I could be wrong" - Dennis Miller
    4. Re:2015? MAN.... by rsynnott · · Score: 1

      Are you? They were saying the same thing about 1980 in 1970, you know. And it's not a CASE of technical advance; there's rarely any new technology involved in these things. It's engineering and testing cost. It's also arguable whether anyone would want a 1000 person plane; it's even questionable if there's a serious market for the new giant AirBus.

      --
      Me (Blog)
    5. Re:2015? MAN.... by hazee · · Score: 2, Informative

      Umm, remember that Concorde was designed in the 60s, and it's *still* the best commercial supersonic aircraft to date.

      Jumbos from the same era still fill the skies too.

      Advances in aviation don't happen as fast as you seem to think.

    6. Re:2015? MAN.... by be-fan · · Score: 1

      I'll take that bet. 2015 is ten years from now. Ten years ago was 1995. Consider how far we've come since then. Do you really think we'll come much farther in ten more years? My guess is that 2015 for this sort of thing is actually a bit optimistic. The physics of supersonic flight just don't lend themselves to cost-efficient aircraft, especially with today's escalating fuel prices.

      --
      A deep unwavering belief is a sure sign you're missing something...
    7. Re:2015? MAN.... by tromba1 · · Score: 2, Insightful

      Current jet aircraft, military & commercial, can now fly no faster than they did 35 years ago. The problem is that we, in the US, spend all of our time and political energy bitching about stupid shit like abortion, stem cell research, prayer in schools and "tax and spend Democrats" vs. "borrow and spend Republicans". The fact is that the EU and Japan (and soon China) are going to leave our uneducated, lazy, nit-picking, politically correct, sorry asses eating technological dust.

      --
      If you cannot measure it, it ain't real.
    8. Re:2015? MAN.... by be-fan · · Score: 1

      I'm usually the first person to blame marketing, but in this case, your malaise is a bit misdirected. In the world of aerospace, it's really the physics that's more of a holdup than marketing.

      Consider the CF6-50 (old 747-200 engine). It's fuel consumption at cruise (35,000 feet and mach 0.8-ish) is about 0.62 pounds of fuel per pound of thrust per hour. The Concorde engine's consumption at cruise (53,000 feet at mach 2.0) is 1.19 pounds of fuel per pound of thrust per hour. Now, consider that during supersonic cruise, your drag skyrockets by a factor of 2-3. So not only are you using 2x as much fuel for a given level of thrust, but your thrust needs to be twice as high to keep the plane flying!

      Also, don't count on huge improvements in the above-mentioned figures. The CF6-50 is an engine designed in the 1960s. It's 0.62 figure at cruise was excellent for the time. The GE90 (the 777 engine), was designed in the 1990s. It's specific fuel consumption at cruise is 0.53. It's extremely efficient for a modern engine.

      --
      A deep unwavering belief is a sure sign you're missing something...
    9. Re:2015? MAN.... by BiggerIsBetter · · Score: 3, Insightful

      But those old planes are a long way from original spec. They'll typically run fairly recent avionics, so it's basically a new plane in an old airframe.

      Anyway, cool things happened because back then, they had a plan, did their best, accepted the risks, and improved things as technology allowed. Now we're trying to get it 100% the first time. Why? Lawsuits, I imagine.

      --
      Forget thrust, drag, lift and weight. Airplanes fly because of money.
    10. Re:2015? MAN.... by rsynnott · · Score: 1

      Well, there WERE only two, and the Tupolev one was extremely similar; even blew up the same number of times!

      --
      Me (Blog)
    11. Re:2015? MAN.... by Retric · · Score: 1

      I seem to recall that the concord was operating at a profit though the last seveal years of it's life. The R&D costs where never paid back but at some point the they doubled the price and basicly nobody noticed. If somone is going to pay 2k to shave 3 hours off their trip they are willing to pay 4k to do the same thing.

      Anyway, a ship that can take 300 people should have less drag per person than a ship that is built for 100 people. And .52 is 16% more effecent than .62 which is a HUGE savings. Overall I think they can drop their fuel price per person mile down by 20-30% which should let them increase the things range. I think a lot of people would be willing to spend ~5-10k to save 8 hours off of a trip. It's hard to say what the market would be overall but once they pay for the R&D they should be able to build a lot of them. US to AU, US to Jap. US to EU. Their might even be a EU to Jap fight path that's mostly over water. Basicly any trip where they can save people 4+ hours is going to be worth it to some people.

    12. Re:2015? MAN.... by be-fan · · Score: 1

      I seem to recall that the concord was operating at a profit though the last seveal years of it's life. The R&D costs where never paid back but at some point the they doubled the price and basicly nobody noticed.

      First, the R&D costs on something like this are enormous. If those aren't recouped, there is no point. Second, if the Concorde was only operating at a profit decades after starting service, then that's hopeless. There is no way you could make up for all the losses in a reasonable timeframe. It's completely unrealistic. The thing would have to operate for 50 years just to break even.

      Anyway, a ship that can take 300 people should have less drag per person than a ship that is built for 100 people.

      It's not as big a difference as you'd think. The drag on a plane is a function of how much lift it produces. If you make the plane bigger (heaver), you need to increase the lift produced by the wing, which proportionally increases drag. In any case, a subsonic plane of the exact same size will still be 4x cheaper to operate in fuel costs alone.

      And .52 is 16% more effecent than .62 which is a HUGE savings.

      It's 16% over a period of over 30 years! Those numbers won't be enough to make a plane like this profitable in the future when the Concorde isn't profitable now. You'd be lucky if that 16% even offsets rising fuel costs.

      Overall I think they can drop their fuel price per person mile down by 20-30% which should let them increase the things range.

      If they can do that by 2015, it would be a fricking miracle.

      I think a lot of people would be willing to spend ~5-10k to save 8 hours off of a trip.

      The Concorde shows that apparently enough people are not willing to do that. Basically, you're paying 4x as much (or more if you want to recoup your R&D), to get somewhere twice as fast. It's not a winning combination for most people.

      --
      A deep unwavering belief is a sure sign you're missing something...
    13. Re:2015? MAN.... by Anonymous Coward · · Score: 0
      I want to be sitting on an airliner designed by people smart enough to know that you DON'T USE A MOTHERFARKING APOSTROPHE TO MAKE A PLURAL!!!!

      Dude, "month's"???

    14. Re:2015? MAN.... by Saeger · · Score: 4, Insightful
      Is it just me, or it really seems that large scale technological advances are going TOO slow?

      It's just you.

      Technological advancement has been increasing at an exponential rate from the beginning; it's just that most of it is occurring at the micro- and nano-scale where you take it for granted. biotech, cloning, the Internet, Google, nano-materials, 133MHz (in 1995) to 3+ GHz today, etc.

      Most large-scale tech is also progressing, but you don't notice it at the human-scale, and you won't, until we can build amazing things using bottom-up nanotech instead of top-down bulk-tech.

      Consider a better, safer, cheaper and much faster way to get from NYC to Tokoyo with near-future tech: A maglev train via an underground tunnel, in vacuum for frictionless acceleration to ludicrious-speed at the midway point before decel. Currently, tunnel excavation is labor intensive and very EXPENSIVE; precise control over matter and robotic automation will change that.

      --
      Power to the Peaceful
    15. Re:2015? MAN.... by Retric · · Score: 1

      Not all R&D is specific to a project. The is a lot of value in being the company that makes the "latest and greatest teck" even though most video cards are not the top of the line NVIDIA is willing to spend a tun of money to be able to say "we build the fastest cards."

      Second, if the Concorde was only operating at a profit decades after starting service, then that's hopeless.
      It started making a profit because somone else started running the program. They simply doubled the price and people kept using the thing which is all about the users not a built in need to wait x years to turn a profet.

      The drag on a plane is a function of how much lift it produces.
      Drag is a function of altitude, speed, shape, and weight. Geting a 16% savings from the engine and 2% from a better shape and 2% from a reduced weight would let them reach ~20% overall savings. Then again they are trying to go faster so their is going to be some loss but they are also going to be flying higher which helps some. 30% fuel savings seems a little extream but a 'LOT' of the drag has to do with pushing to body of the craft though the air (not the wings) which is going to be helped a lot by building a longer craft that holds more people. Hell they are geting some savings just from having 2 or 3 pilots for 300 people vs 2 or 3 pilots for 100 people.

      They are also going to be able to keep a much more stable pasanger list. It will cost them about as much to send 150 people as it would to send 300 but they can be less conservitve with their pricing to try and fill 150 seats vs 50. AKA you can be more accurate when hiting a larger target.

      The largest probelms with the Concorde where it's range, the limited number of airports it could use, and the mis management of initial pricing some or all of which could be fixed with this project.

      There is an old idea in manufacturing "some people will pay 10x as much for a part if they can keep using it." If somone stops making some a 10c part for your tractor it's easly worth 10$ to you for somone else to make one. Ditto for the rich people who would use the Concorde most of them had no idea what it cost they had somone else taking care of those details.

    16. Re:2015? MAN.... by be-fan · · Score: 1

      Not all R&D is specific to a project.

      In a big plane like this, yes it is. And while bragging rights may count for something, they don't count for the billions of dollars it'd cost to build this thing.

      They simply doubled the price and people kept using the thing which is all about the users not a built in need to wait x years to turn a profet.

      The number of people who will be willing to pay 4x as much to fly 2x faster will always be limited. The fact that every SST effort to date has so far proved unprofitable suggests that this limitation will continue to exist as long as the 4x cost differential exists.

      Drag is a function of altitude, speed, shape, and weight.

      You're getting away from the point. You said "a 300 passenger plane will have lower drag-per-person than a 100 passenger plane". That's not really true, because a 300 passenger plane will weigh close to 3x as much as a 100 passenger plane. See, weight is the critical part of the equation. More weight means more lift which means more lift-induced drag. Indeed, thrust-required is proportional to weight, at least at subsonic speeds. The ratio of wave-drag to lift-induced drag at supersonic speeds changes things slightly, but the point remains --- making the plane bigger is not a good way to reduce thrust required per passenger.

      Geting a 16% savings from the engine and 2% from a better shape and 2% from a reduced weight would let them reach ~20% overall savings.

      Is this thing coming out in 2035 or 2015? Because 16% by 2015 is incredibly optimistic. Even then, a 20% overall savings will likely not even overcome the increased cost of fuel by 2035. And in 2035, a supersonic transport will still use 4x as much fuel as a subsonic transport. That's the fundemental problem.

      --
      A deep unwavering belief is a sure sign you're missing something...
    17. Re:2015? MAN.... by Citizen+of+Earth · · Score: 1

      Umm, remember that Concorde was designed in the 60s, and it's *still* the best commercial supersonic aircraft to date.

      The reason it was still the best is the same reason it failed: it wasn't economical to operate. If it had have been, then there would be lots of competition today. Any new attempt will have to produce a plane that is actually economical.

    18. Re:2015? MAN.... by Retric · · Score: 1

      I am talking about 20-30% fuel savings per mile vs the Concorde. Yes, it will use ~4x what a sub sonic plane does but fuel is also cheeper now than it was in 1970. Yes, it's going up but the rich are geting richer a lot faster than fuel prices are goign up.

      When you look at fuel costs per person mile large planes work better. There are many reasons for this. Even stuff as simple as having 1/3 of the cockpit weight per person is a large savings. Also they can skip the droped nose from the Concorde which will save them a lot of weight add in a few composits and I expect it's going to easly have 5% less drag.

      I expect they can reuse a lot of the R&D from the Concorde. Add to that computer aided design and the R&D costs might not be as bad as most people think. You also devide the R&D costs by the number of planes so if they are going to build 50 of them the R&D per plane is going to be ~1/5 what the Concorde was facing. I expect with a longer range it will be a lot more usefull so 50 seems like a reasonable target to me.

      PS: Wing drag is based on weight (heavyer objects need more wing) but the body needs to move the same amount of air out of it's path if it's 100' long or 300' long. The wings on a 747 are huge and produce a lot of drag but the "body" provides drag independent of the weight.

    19. Re:2015? MAN.... by calidoscope · · Score: 2, Informative
      Consider the CF6-50 (old 747-200 engine). It's fuel consumption at cruise (35,000 feet and mach 0.8-ish) is about 0.62 pounds of fuel per pound of thrust per hour. The Concorde engine's consumption at cruise (53,000 feet at mach 2.0) is 1.19 pounds of fuel per pound of thrust per hour. Now, consider that during supersonic cruise, your drag skyrockets by a factor of 2-3. So not only are you using 2x as much fuel for a given level of thrust, but your thrust needs to be twice as high to keep the plane flying!

      If the L/D remains the same, then using twice as much fuel per hour to go twice as fast results in the same fuel consumption per mile or kilometer. You are correct in that the L/D is 2-3X lower for a supersonic aircraft.

      Engine technology has advanced a bit more than you suggested, especially for supersonic aircraft. Chief example is the F-22 that can fly supersonic without afterburner.

      I'm wondering if going to Mach 2.4 is a good idea compared to Mach 1.6. At M1.6, it is possible to get almost isentropic conversion from supersonic flow to subsonic flow with multiple oblique shock waves - which would do wonders for engine performance - now if there was a way of improving L/D.

      Another example of gas turbine progress - an early 1950's 4500HP GE gas turbine had a thermal efficiency of ~18%, the latest H series turbines from GE have a 46% thermal efficiency.

      --
      A Shadeless room is a brighter room.
    20. Re:2015? MAN.... by be-fan · · Score: 1

      I don't think a 20-30% savings in fuel costs per mile vs the Concorde is enough to make it cost-effective now. In any case, fuel is more expensive now than it was for 15 years during the late 1980's and 1990s, and the Concorde wasn't cost-effective then either. You say the rich will finance this project, but there just aren't enough rich people that need to travel so much to finance this huge operation.

      Wing drag is based on weight (heavyer objects need more wing) but the body needs to move the same amount of air out of it's path if it's 100' long or 300' long.

      Drag isn't just caused by "pushing air out of the way". Drag is very complex, but in supersonic flight, you can identify four major contributors to drag: pressure drag, skin-friction drag, lift-induced drag, and wave-drag. Wave drag is further broken down into volume-induced wave drag and lift-induced wave drag. The equations describing these aren't very friendly to your argument. Let's break it down:

      0) Pressure drag is due to the "pusning air out of the way". You're right, it is proportional to the frontal-area of the body, and will be similar for long and short bodies of equal frontal-area.

      1) Skin-friction drag is proportional to wetted surface area. A fuselage 3x as long will have 3x the surface area and much higher skin-friction drag.

      2) Lift-induced drag is proportional to lift, and thus to weight. A fuselage 3x as long will weigh 3x as much, and thus require a large increase in lift. This will cause a large increase in drag.

      3.1) Volume-induced wave drag is proportional to volume and inversely proportional to the fourth power of length. So increasing the length of the body by 3x will actually result in a large reduction in volume-induced wave drag.

      3.2) Lift-induced wave drag is proportional to the square of lift. So making the body 3x longer will require a 3x increase in the part of the lift used to support the body, causing a 9x increase in the drag caused by the body.

      As I said, drag is a complex function of these elements, and at supersonic flight, total drag is a sum of all of these elements. However, if you look at the math, you'll see that making the body longer will greatly increase your drag, unless the overall drag is completely dominted by volume-induced wave drag (which it isn't).

      --
      A deep unwavering belief is a sure sign you're missing something...
    21. Re:2015? MAN.... by Anonymous Coward · · Score: 0

      You know, it is kind of annoying to watch a discussion between two people who lack facts, heck I still lack facts and I wouldn't dare claim with such certaintly how things will turn out, like you two do.

      To help out a bit though, for a doubling of passengers you don't get near to a doubling of mass in the plane, this has to do with volume and surface areas. Basically the amount of surface that need covering rises much less quickly then the total amount of available volume, even with the extra interior stuff required this remains true.

      As for the factor drag, the argument falls a bit short, because in supersonic flight there are still relatively many things you can do to improve efficiency, forinstance a better breaking of the air shockwave could substantially reduce drag, secondly a large part of the inefficiency is due to the concorde engine needing to use ugly stuff like afterburners. If you look at a F-22, which uses a very powerful new generation engine. you will see a staggering increase in efficiency when it is operating without afterburners in supersonic flight. (I got the impression infact that it could fly further supersonic then subsonic)

      Next to all that, I noticed the japanese engine having a truly astounding flight envelope. (not directly said, but I suspect it is, needing more then one engine on plane would be prohibitively expensive) The engine seems to be capable for delivering effective thrust from standstill to mach 5.5, which is incredible, no turbofan or even military jet engine does that. I only know of one type of engine that could in principle have such an ability, which was a special kind of pulsed jet engine. What I know of that engine is that it should have exceedingly much higher efficiecy due to extremly high pressure combustion at very high temperature. It might have more then 30% efficiency from what little I know of it. (yes, this thing has had actual testing, so not a theoretical engine)

      Taking this all together, I would imagine you could perhaps build a plane that operates at say double the efficiency of a concorde, maybe even more. Which starts to sound like it might be economically viable. Will have to wait a bit to see for sure if it pans out though, big ambitious projects tend to have larger failure rates afterall.

    22. Re:2015? MAN.... by Anonymous Coward · · Score: 0

      I'm betting that by 2015 there'll be a technology to make even faster yets which will hold up to 1000 people.

      A: What eez yat?

      B: Yat is my yet!

      A: Does eet hold many?

      B: Eet holds like one-million.

      A: Yat's a big a yet!

      B: Yah.

    23. Re:2015? MAN.... by hcdejong · · Score: 1

      Engine technology has advanced a bit more than you suggested, especially for supersonic aircraft. Chief example is the F-22 that can fly supersonic without afterburner.
      Actually, the P.1A prototypes for the English Electric Lightning could supercruise back in 1954, albeit only in a 'clean' (no weapons) configuration.

    24. Re:2015? MAN.... by Anonymous Coward · · Score: 0

      Neither the Concorde or the Tupolev "Concordski" ever "blew up".

    25. Re:2015? MAN.... by Black+Tezcatlipoca · · Score: 1

      Consider a better, safer, cheaper and much faster way to get from NYC to Tokoyo with near-future tech: A maglev train via an underground tunnel, in vacuum for frictionless acceleration to ludicrious-speed at the midway point before decel. It doesnt have to be underground, you could bridge the Bering, Mamiya and La Perouse Strait's.

    26. Re:2015? MAN.... by Pig+Hogger · · Score: 1
      Engine technology has advanced a bit more than you suggested, especially for supersonic aircraft. Chief example is the F-22 that can fly supersonic without afterburner.
      Er... The Concorde's Olympus engines DID allow it to fly supersonic WITHOUT afterburners. The afterburners were used on take-off to allow it to accelerate to the higher take-off speed it needed to get aloft, hence it's horrenduously loud noise on takeoff...
    27. Re:2015? MAN.... by Retric · · Score: 1

      There was an interesting AC post to my last comment that you might want to read but I think you do know what your talking about. The only real disagreements we seem to be having is your saying that a plane that takes 3x the pasangers will have less than 3x the drag and that there are people willing to pay for such services.

      Looking at your above post you seem to say that 3.2 Lift-induced wave drag is going to overtake the others. However these components are not so easly modeled. I can't find good numbers for the Concorde so it's hard to say but once again these are all in terms of drag per person. The has been a "lot" of research into super sonic flight and the other point your missing is you can make aircraft that produce a less turbulance which also reduces drag. I don't have the numbers on hand but this does not change my argument at all 16% savings from the engines seems reasonable and 2% drop in weight per person is seems vary low (they might get that just from skiping the mobile nose section). I still think they can get 2% reduction in drag by building a modern airframe and increasing the size of the plane but it's not all that important and we don't have good numbers for this.

      As to who is willing to pay for such things the top 1% of the US population has had had gotten much richer over time. The middle class has stayed about the same the lower class has fallen behind but the rich have been doing vary well for them selves. Now fuel costs vary a lot but over the last 20 years fuel costs have not gone up anywhere near as much as the net weath owned by the rich.

      If don't want to dig though the US gov's numbers check out.
      http://www.inplainsight.info/Topics/Tax%20Reform/w ealth.htm

      PS: Yes the math is complex. After reading much of this think I know less than when I started...
      http://www.desktopaero.com/appliedaero/indexpage.h tml

    28. Re:2015? MAN.... by Peldor · · Score: 2, Interesting
      Consider a better, safer, cheaper and much faster way to get from NYC to Tokoyo with near-future tech: A maglev train via an underground tunnel, in vacuum for frictionless acceleration to ludicrious-speed at the midway point before decel. Currently, tunnel excavation is labor intensive and very EXPENSIVE; precise control over matter and robotic automation will change that.

      You're not going to change the enormous energy required to move trillions of tons of rock. Or the mega-expense of laying 12,000 miles of maglev track and sucking the air out of the tube constantly.

      Flying a jet through the rarified atmosphere is much easier. And you can actually go somewhere besides Tokyo and NY if you'd like.

    29. Re:2015? MAN.... by Spy+der+Mann · · Score: 1

      The problem is that we, in the US, spend all of our time and political energy bitching about stupid shit like abortion, stem cell research, prayer in schools

      Hey - meet my friend Chewbacca. He'll be pleased to meet you.

      [Note for mods: I'm exposing the chewbacca defense presented by parent poster]

    30. Re:2015? MAN.... by be-fan · · Score: 1

      My point is simply that scaling the airplane won't significantly reduce your drag per person. I'm sure you could get a 2% reduction, or even more, but before you get much more, you'll quickly hit physical limits.

      As for cost, I guess we'll have to agree to disagree. You believe that there is a market for high-speed flights that cost several times more than regular flights. I do not.

      --
      A deep unwavering belief is a sure sign you're missing something...
    31. Re:2015? MAN.... by theNAM666 · · Score: 1

      What you are missing is that any reasonable supersonic aircraft would ride the sonic wave pattern, which (among other effects) provides some nice fuel savings. The SR-71 did this, and any modern super- or hyper-sonic craft will exploit such effects. The net is that supersonic craft should be more fuel efficient.

      The SR-71 was of course late 50s design; the Concorde, in fact, was early 50s technology, basically a subsonic jet beefed up to withstand supersonic shock, but not a true supersonic design like the SR-71. Fifty years later, science can do a little better.

    32. Re:2015? MAN.... by Retric · · Score: 1

      As for cost, I guess we'll have to agree to disagree. You believe that there is a market for high-speed flights that cost several times more than regular flights. I do not.

      How many customers have travelled on Concorde?
      More than 2.5 million since it started commercial passenger services in 1976.
      *

      I never said that the Concorde program was a success. However I feel a 20+% more efferent plane with a longer range could be vary successful. A new project needs to keep R&D costs low but "British Airways reportedly received £1.75 Billion in revenue for Concorde services against an operating cost of around £1 Billion." which is not bad for a single market and with more markets you end up with a lower R&D cost per flight. Air France made a much smaller profit, but only 14 entered airline service so a program that creates 50 Jet's with lower operating costs seems like a good idea to me.

      It's going to be vary risky, but there is value in large projects like these. Once you become the only company that can make such a product you get to feed off of that market for a long time. You look at it as an open market where your competition sees a viable competitor, which prevents most competition yet governments see plenty of direct competition via normal Jet's so they are not going to try and break you up.

      * http://www.concordesst.com/retire/faq_r.html

  6. That's because.... by Zebra_X · · Score: 4, Insightful

    "Although Japan had previously done extensive research towards building a 250-person mach 1.6 passenger jet, the agreement with France - announced at the annual Paris Air Show on Tuesday - represents a interesting shift in technological alliances given the Japanese aviation industry's longstanding ties to the United States."

    The U.S. aviation industry has no desire to build these aircraft. The FAA prohibits supersoinc flight over US Soil @ any altitude without prior special approval.

    1. Re:That's because.... by MichaelSmith · · Score: 2, Informative
      The FAA prohibits supersoinc flight over US Soil @ any altitude without prior special approval

      Above 100km altitude is OK because that is in space.

    2. Re:That's because.... by Chairboy · · Score: 2, Interesting

      The reason for that is noise. There has been research recently that suggests that the shape of the aircraft can be used to reduce the boom, possibly to a point where the FAA would relent.

    3. Re:That's because.... by Anonymous Coward · · Score: 0

      Why? Is the reason because it will set off early ICBM warning systems? Is it mistaken for a missile ?

      So theoretically any missile on a flight path of a supersonic plane could get thru as its mistaken for a commercial plane?

      Im sure the reason isnt NOISE, but rather DEFENCE.

    4. Re:That's because.... by Anonymous Coward · · Score: 0

      Actually one of the main reasons was to cripple the usefulness of concorde. Boeing didnt have an equivalent, so they got it crippled in regulation.

    5. Re:That's because.... by Zebra_X · · Score: 1, Informative

      Not true. Actually the FAA is responsible for enforcing the National Environmental Policy Act of 1969. This act protects the "quality of the human environemt". The U.S. is unique in this regard because I don't think many other countries have such legislation.

      The bottom line of the FAA directive however, states that "no measureable sonic boom overpressure" may reach the surface of the U.S. except within an authorized test area. There is a rather lengthy procedure to be granted such an authorization.

    6. Re:That's because.... by Zebra_X · · Score: 2, Interesting

      Suggests - a heavily modified F-4 Phantom on loan from the USAF proved that a noise cancelling shape was feasible. However, that design is a long way from commercial production.

    7. Re:That's because.... by Anonymous Coward · · Score: 0

      What about using Electro magnetism fields to reduce the shockwave ie., FORCE FIELDS :D maybe polarise the hull plating :D

      But seriously, can they not reduce the shockwave using techniques such as that?

    8. Re:That's because.... by Anonymous Coward · · Score: 0

      Question/clarification wanted:

      Is it that supersonic flight is prohibited? (flight faster than the speed of sound solely)

      Or that a sonic boom is prohibited? (noise, not speed)

      As others have mentioned, there is research into making supersonic planes that have greatly reduced or no perceptable booms at all.

    9. Re:That's because.... by Zebra_X · · Score: 3, Insightful

      No.

      The bottom line of the FAA directive, states that "no measureable sonic boom overpressure" may reach the surface of the U.S. except within an authorized test area. There is a rather lengthy procedure to be granted such an authorization. There is no mention of altitude in the FAR 91.817 or it's Appendix. The rule simply states that if you make a sonic boom, it cannot reach the surface of the United States.

      In addition, high altitued flights are generally regarded as a Bad Idea because of concerns of radiation.

      100 km is also 62 miles. A decent from such a flight will certainly put an aircraft above mach 1 over at an altitude which will cause a sonic boom to reach the US.

    10. Re:That's because.... by follower_of_christ · · Score: 2, Informative
      Planes launch horizontally and ICBMs launch vertically. ICBMs follow more of a ballistic flight pattern when they are in the atmosphere, planes.... turn. Planes don't leave the atmosphere. The ICBM would have to re-enter the atmosphere and recorrect its descent and begin traveling at the same altitude as a supersonic jet.

      That missile better have some very sophisticated Atificial Intelligence and be on a registered flight pattern because we'll be trying to communicate with it if it isn't and before it even gets close we'd probably scramble jets before it crossed any of our borders if its not telling us with a human voice what it is. There aren't any non-military supersonic jets in service currently so a single supersonic object floating around will be very closely monitored.

    11. Re:That's because.... by Zebra_X · · Score: 1

      The primary issue is Noise. As I mentioned in another response there is a National Environmetal Policy act that was passed in 1969 that is supposed to "protect the human environment". One of the "dangers" to that is noise. The FAA directive also explicitly states that a civil aircraft may not be operated above Mach number one, as well as stating that a sonic boom may not reach US soil. So the answer is both.

      There is an appendix B to that rule (91.817) that allows an operator to apply for a permit to travel above mach 1, but it does not sound like it is easy to obtain.

      In addition there are other noise abatement directives that limit how loud aircraft can be.

    12. Re:That's because.... by rodgerd · · Score: 1

      Yeah, like that wouldn't change in an instance if any US aerospace manufacturer had a commercial supersonic liner in their portfolio of products.

    13. Re:That's because.... by Anonymous Coward · · Score: 1, Funny
      A decent from such a flight will certainly put an aircraft above mach 1 over at an altitude which will cause a sonic boom to reach the US.

      That's why the aliens use flying saucers. They gently ascend and descend vertically to and from an altitude where high-speed travel is safe. They don't need congested airports either.

      The USA should work to ensure its superiority in the aerospace industry by leapfrogging this SST and developing a workable flying saucer.

    14. Re:That's because.... by thogard · · Score: 1

      No matter what you do with an F-4, its still just a brick with enough thrust to get it moving very fast and even with modifications, its not an ideal candidate for the research that was done. The research shows that sonic booms will go away in the future.

    15. Re:That's because.... by Guppy06 · · Score: 1

      "The bottom line of the FAA directive, states that "no measureable sonic boom overpressure" may reach the surface of the U.S. except within an authorized test area."

      Unless you're a space shuttle. A landing shuttle will set off car alarms in New Orleans like clockwork.

    16. Re:That's because.... by Anonymous Coward · · Score: 1, Informative

      Now that's rich! The US forbid supersonic flight over their own territory while sonic booms from USAF fighter planes were a common occurance in germany in the 80s!

    17. Re:That's because.... by Anonymous Coward · · Score: 0

      The comment that the US would immediately change legislation if it needed to to operate its own supersonic airliner is perfectly true.

      The US has a long track record of unilaterally tearing up treaties when it suits it. That's not unusual - few countries will cut their nose off to spite their face. Only the French do it more blatently, however!

    18. Re:That's because.... by dcw3 · · Score: 1

      Now that's rich! The US forbid supersonic flight over their own territory while sonic booms from USAF fighter planes were a common occurance in germany in the 80s!

      Now that's rich, comparing the cold war needs of the USAF (permitted by the German govt. FYI), with peacetime commercial flight.

      I spent six years of my life there helping defend that country in the 80s. You're welcome for the help in getting the wall to come down, jerk.

      --
      Just another day in Paradise
    19. Re:That's because.... by Zebra_X · · Score: 1

      FAR 91.817 applies to Civil Aircraft.

    20. Re:That's because.... by tompaulco · · Score: 1

      The FAA prohibits supersoinc flight over US Soil @ any altitude without prior special approval.
      That's interesting since the FAA has no jurisdiction over altitudes above 60,000 feet.
      Also, this applies only to civilian craft, as the military happily creates sonic booms all the time, as does the space shuttle.

      --
      If you are not allowed to question your government then the government has answered your question.
    21. Re:That's because.... by Zebra_X · · Score: 1

      Class A Controlled airspace ends @ FL600. This does not however, mean that you are no longer under the influnce of the FAA. You are still flying within United States airspace, and thus are still under the influence of U.S. Aviation Policy. The restriction on sonic booms is not tied to altitude, thus it still applies above FL600. Indeed these rules apply to civilan aircraft, but a normal air carrier operates "civilian" aircraft. So for the discussion of a Japan/France alliance to build a supersonic aircraft and the disinterest of U.S. plane makers to do so - military and federal FAA policy is irrlevent.

    22. Re:That's because.... by Zebra_X · · Score: 1

      I was replying to the parent comment, not the comment above mine.

  7. Leg room by twinstead · · Score: 0, Flamebait

    The only people that will be able to fit in the seats will be the Japanese, without cameras.

    1. Re:Leg room by Anonymous Coward · · Score: 0

      Yeah, fat-ass Americans won't be allowed to fly in them!

  8. US and Supersonic by 1967mustangman · · Score: 4, Insightful

    I don't think US carries have ever been that interested in supersonic aircraft. One of the biggest hurdles is the prohibition against going supersonic over land which would drasictally limit the number of possible routes. I would make sense for Japan to do such research in that much of thier flying time would be over water anyway. I will be interesting to see if this actually catches on though. Boeing was working with the Russians for a while and nothing panned out there. Nor did anything pan out on the mach .98 plane they were designing.

    --
    Madre de Dios! Es El Pollo Diablo! -- Captain Blondebeard
    1. Re:US and Supersonic by hazee · · Score: 1

      Does the inability to fly supersonically over land really limit you that much? After all, three quarters of the Earth's surface is covered with water.

      Apart from Canada and Mexico, pretty much every international flight from the US would involve flight over oceans - even for trips to South America, you could follow the coast down, a couple of hundred miles offshore.

    2. Re:US and Supersonic by mikael · · Score: 1

      I read that the Russians had the idea of flying planes underground through specially built tunnels. The "plane" wouldn't so take off, but the effect of custom built wings would cause the plane to be pulled towards the centreline of the tunnel, and the jet engines would make it travel around 500 miles/hour.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    3. Re:US and Supersonic by emmons · · Score: 2, Insightful

      After all, three quarters of the Earth's surface is covered with water.

      Yet there are few urban centers on those water-covered areas. While many international flights go over water, US carriers service far, far more domestic flights that go over land.

      --
      Do you even know anything about perl? -- AC Replying to Tom Christiansen post.
    4. Re:US and Supersonic by Molochi · · Score: 1

      Don't know about tunnels but "ground effect" planes/boats they did build and the idea seems similar. http://www.google.com/search?q=ekranoplan

      --
      "The Adobe Updater must update itself before it can check for updates. Would you like to update the Adobe Updater now?"
    5. Re:US and Supersonic by eraserewind · · Score: 1

      There are plenty of urban centers on or close to the coasts of those water covered areas.

    6. Re:US and Supersonic by mikael · · Score: 1

      Yes, that was the method described. The "trains" would have additional guide wings at the side, so the whole system would look like this.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    7. Re:US and Supersonic by theNAM666 · · Score: 1
      I don't think US carries have ever been that interested in supersonic aircraft.
      Boeing and NASA have been operating a joint supersonic project at Columbus for more than a decade.


      Current thought in the US is that we will jump directly to hypersonic, first for military and then commercial uses, because its just so darn cheaper in the end.

  9. Can't wait to see the In-flight Cuisine by bigwavejas · · Score: 1

    dime sized sushi!!! yay!

    --
    "Simplify, simplify, simplify!" Thoreau
    1. Re:Can't wait to see the In-flight Cuisine by Deviant+Q · · Score: 1

      Are you anticipating length contraction due to special relativity, or...?

      'Cuz it doesn't work that way.

      --
      "May the days be aimless. Let the seasons drift. Do not advance the action according to a plan."
    2. Re:Can't wait to see the In-flight Cuisine by bigwavejas · · Score: 1

      I was actually referring to French Cuisine, generally the portions warrant one to eat dinner again after eating a french meal. Either that or I'm just a pig. Wait I am a pig.

      --
      "Simplify, simplify, simplify!" Thoreau
  10. Don't forget the other factors by FunWithHeadlines · · Score: 4, Funny
    "fly from New York City to Tokyo in a mere six hours"

    Little bag of peanuts: Extra
    Want a pillow? Should have thought to bring one
    Brought a pillow? Sorry, you have to check that.
    Please remove all your clothes at the security check. Bend over.

    First-class passengers, none of the above apply to you. Please walk the red carpet to your private cabin and enjoy some champagne from your gold-edged crystal. Foot-rub, sir?

    Main cabin passengers, where do you think you're going, buster? Get in line! Wait yer turn! You think we want to carry scum like you? Food service? HA! Should have bought a sandwich before you got on board. We only serve food in coach on flights of 6 hours, 1 minute or longer, and this flight is 6 hours even. Sucker.

    1. Re:Don't forget the other factors by Balthisar · · Score: 4, Interesting

      I know the parent is cliche now, but dang it, I've had many opportunities to fly some of the Mexican airlinelines lately, and it reminds me of the way things used to be. Hot meals. Silverware. The *whole* can of soda. Free booze (yeah, even domestic flights). Pillows. Blankets. Little doily-things on the headrest so the previous passenger's grease wouldn't infect your head. In flight magazine (yeah, in English). Enough legroom for my 6'2" body. And all of this in tourist class. And you know, on my last flight, I bought the tickets a couple of days in advance, and it was the same price as when I'd checked them a month in advance.

      And just to show that I'm still a little sexist, latina stewardesses of the highest calibre.

      --
      --Jim (me)
    2. Re:Don't forget the other factors by spyder913 · · Score: 1

      Not to go against what you've said since most of it is spot on, but I've never gotten any grief for asking for 'the whole can' when I've flown recently.

    3. Re:Don't forget the other factors by be-fan · · Score: 1

      I still love flying Thai airlines. ALl of the things you mentioned (including rather good food), plus hot stewardesses :)

      --
      A deep unwavering belief is a sure sign you're missing something...
    4. Re:Don't forget the other factors by vicparedes · · Score: 2, Funny

      Then again, Thailand has the highest percentage of she-males per capita.

    5. Re:Don't forget the other factors by kabz · · Score: 2, Informative

      Yep, and for a *really* large vodka, fly Avianca, the Venezuelan airline.

      Oh, a voddy poured by one of the worlds most beautiful women ;-)

      --
      -- "It's not stalking if you're married!" My Wife.
    6. Re:Don't forget the other factors by be-fan · · Score: 1

      Hmm, if one can't tell, does it really matter?

      --
      A deep unwavering belief is a sure sign you're missing something...
    7. Re:Don't forget the other factors by Frogbert · · Score: 1

      Indonesian Airlines are the best, they don't give two hoots about the legal drinking age so they were serving me free vodka on the flight over there when I was all of 12. My parents kept a better watch on me on the way back though.

    8. Re:Don't forget the other factors by RzUpAnmsCwrds · · Score: 2, Interesting

      "I know the parent is cliche now, but dang it, I've had many opportunities to fly some of the Mexican airlinelines lately, and it reminds me of the way things used to be. Hot meals. Silverware. The *whole* can of soda. Free booze (yeah, even domestic flights). Pillows. Blankets. Little doily-things on the headrest so the previous passenger's grease wouldn't infect your head. In flight magazine (yeah, in English). Enough legroom for my 6'2" body. And all of this in tourist class. And you know, on my last flight, I bought the tickets a couple of days in advance, and it was the same price as when I'd checked them a month in advance.

      And just to show that I'm still a little sexist, latina stewardesses of the highest calibre."

      You didn't get any of that for free. You paid for it in the price of your ticket. Air travel is *significantly* cheaper today than it was even 10-15 years ago. Why? Because discount carriers who dropped "luxuries" for lower fares started to take over the market. Market pressure forced the major carriers to drop the amenities as well.

      "And you know, on my last flight, I bought the tickets a couple of days in advance, and it was the same price as when I'd checked them a month in advance."

      This is stupid. When you book late, you *should* pay more. Why? Because allowing everyone to book at the last minute adds uncertainty and increases costs. When the flights are booked months in advance, the carrier can select which airplane to use (777-200 or A319, for example) and otherwise juggle the schedule to ensure that airplanes operate *full*.

      This is one of the huge differences from the 70s - airplanes are "overbooked" or "underbooked" far less often. Requiring you to book far in advance allows the carrier to ensure that airplanes will leave at capacity. In the long run, that translates to lower ticket prices.

      Moreover, charging higher prices for later booking allows business travelers (who often book days or even hours in advance, and who don't care about cost) to subsidise my ticket.

      Face facts: air travel has reached the point where it is nothing more than a fast bus service. No frills, just cram an airplane full of people and get them to their destination 5 hours later. The seats are cramped, the bathrooms are tiny, and the airplane is noisy - but if if saves me money on my ticket, I'm all for it.

      Oh, and if the sparse accomidations bug you, there's always First Class.

    9. Re:Don't forget the other factors by Anonymous Coward · · Score: 0

      If one can't tell, then either you've only been dreaming, or your she-males are WELL stretched by the time you get to them. Better keep the light on next time - or maybe you better not >:-)

    10. Re:Don't forget the other factors by Pig+Hogger · · Score: 1
      Then again, Thailand has the highest percentage of she-males per capita.
      One wonders why, 'cause the thai boys are just as cute as the girls...
    11. Re:Don't forget the other factors by Balthisar · · Score: 2, Interesting

      Yeah, but the Mexican airline prices are competetive. I have my option of many of the US-based carriers, too. So the fact is, you PAY for those services on US carriers, too, you just don't GET them. And for the US carriers, I'm not talking the 80's and early 90's; I'm only going to pre-9/11. It was a big excuse to cut all of the service without cutting all of the fares.

      Hey, I'm cheap, too. I won't pay for first class when I can get good treatment in tourist class. Hell, even BEFORE 9/11 I wouldn't touch Southwest with a 10-foot pole -- the Greyhound Bus of the skies. Unfortunately everyone else is become Greyhound too. And yeah, I understand the market considerations. Cheapies -- like me -- take the lower-priced tickets. Some people take the absolutely lowest prices they can find.

      So, it's Aeromexico or Aerocalifornia or Aviacsa whenever I can get away with it.

      --
      --Jim (me)
  11. 1.6 passengers? by Anonymous Coward · · Score: 0

    Idiots.

    1. Re:1.6 passengers? by glitch23 · · Score: 0

      1.6 passengers? No it's not.

      Although Japan had previously done extensive research towards building a 250-person mach 1.6 passenger jet,

      It is not a 1.6 passenger jet, it is a 250-person, mach 1.6 passenger jet. You read it wrong by missing "mach" but they also missed a comma.

      Idiot

      --
      this nation, under God, shall have a new birth of freedom. -- Lincoln, Gettysburg Address
  12. Correction by Locke2005 · · Score: 5, Funny

    The plane will carry 300 Japanese passengers or 150 American passengers.

    --
    I've abandoned my search for truth; now I'm just looking for some useful delusions.
  13. Godzilla by proxy_avatar · · Score: 1

    Maybe ther are trying to give Godzilla a run for his money?

  14. Great news! If you're rich... by mpontes · · Score: 2, Interesting
    Thing is, most of us will never fly in one of those. The average Joe will still have to sit in a tiny seat for 10 hours just next to that fat guy who should be paying two tickets instead of one.

    I mean, I wonder if anyone here actually took the Concorde?

    --
    Bored? Browse Slashdot with a +6 modifier for Troll comme
    1. Re:Great news! If you're rich... by rsynnott · · Score: 0

      The Concorde was a piece of cold-war silliness, just like the Tupolev T-whatever and the Boeing one that never flew (and the B-70). This is being designed as an economically viable plane.

      --
      Me (Blog)
    2. Re:Great news! If you're rich... by Col.+Bloodnok · · Score: 1

      I mean, I wonder if anyone here actually took the Concorde?

      Yes. On business.

      I've stayed in a suite at the Savoy too!

      Oh, those dot-com days...

    3. Re:Great news! If you're rich... by Dominic · · Score: 1

      Concorde was the first plane I'd ever been on, and it was all quite exciting for me as a 15 year old. It was a lucky break - I was working for a small telecoms company during my school summer holiday and they hit some sales target or other. The reward was lunch for *all* staff on Concorde.

      I still have the ticket - Heathrow to Heathrow. It was great fun - got to visit the cockpit and was treated like a king. Every flight I've been on since has been 'economy'.. the first one was a real disappointment. 'Where's the Champagne?!'. Pah.

  15. interesting by sithsasquatch · · Score: 3, Funny

    "Japan has successfully tested an engine that can theoretically reach speeds of up to mach 5.5, or more than five times the speed of sound, the ministry said."

    How does one successfully test an engine theoretically? "Well, according to my calculations, it won't fail and send 300 passengers to a fiery death . . . oh shit, I forgot to carry the 1 . . . and that decimal is wrong . . . what's the coefficient of kinetic friction again?"

    --
    With so many ppl on /., how am I supposed to come up with a unique sig?
    1. Re:interesting by WordNA · · Score: 1

      "How does one successfully test an engine theoretically?"

      Like driving a car in first gear, but suggesting that it's capable of going faster.

    2. Re:interesting by Anonymous Coward · · Score: 0

      Japan has successfully tested an engine that can theoretically reach speeds of up to mach 5.5, or more than five times the speed of sound, the ministry said."

      How does one successfully test an engine theoretically?



      You weren't an English major were you? 2 facts:

      The engine was successfully tested
      The engine can theoretically reach speeds of up to mach 5.5

      Nothing even implies it was tested at it's top speed, why would you assume that? If it was, it wouldn't be theoretical.

    3. Re:interesting by forkazoo · · Score: 1

      Probably a ground test. "This engine has thrust like a motherfucker, but we had it bolted to the ground." If it wasn't bolted to the ground, and was actually attached to an airplane, it would be able to go faster than 0 MPH.

    4. Re:interesting by be-fan · · Score: 1

      Easy. You test the engine in a harness, find out how much thrust it develops, then use aerodynamic theory to figure out how fast a hypothetical plane could fly with it.

      --
      A deep unwavering belief is a sure sign you're missing something...
    5. Re:interesting by sharkey · · Score: 1
      what's the coefficient of kinetic friction again?

      42

      --

      --
      "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
    6. Re:interesting by zippthorne · · Score: 2, Informative

      Um.. you test engines in wind tunnels. Hypersonic wind tunnels are really hard to come by. There's one at Glenn Research Center near Cleveland, Ohio. They have a "moveable wall" to dial up different mach numbers for various projects made of inch and a half thick steel. It is one of the largest tunnels of its kind (very few are actually walk-in tunnels) but the usefull stream is probably very close to the size of the engine to be tested. I am unsure of what it's maximum mach number is, but it's definately single digit.

      You start out by testing the engine at low speeds, and keep increasing speed until you notice some vibration mode that you didn't find before or you reach the limits of the materials you chose for initial testing. (like maybe you didn't wait for the blades to crystalize, but you're not using maximum engine stress so it cut fab time for the prototype) or any of a number of pre-defined stop points at which you evaluate the condition of the engine and either proceed with more testing or scrap and redesign. It seems they haven't tested it at its design speed yet.

      --
      Can you be Even More Awesome?!
    7. Re:interesting by rufty_tufty · · Score: 1

      African or European?

      --
      "The weirdest thing about a mind, is that every answer that you find, is the basis of a brand new cliche" -
  16. $1.8 million over 3 years? by snarkh · · Score: 1


    They've got to be kidding.

  17. Innovation? by RickPartin · · Score: 1

    Forgive my complete lack of aircraft knowledge but does the aircraft industry in the US do much innovation on airplane designs? Current models look kind of dated. Or maybe I'm just expecting them to come out with some crazy space plane with lasers.

    1. Re:Innovation? by Anonymous Coward · · Score: 0

      Innovations of late have been in terms of materials used and the engine design. They look pretty much the same as the dated old jets from the 70s, but are fairly different in terms of loading, fuel efficiency, and resilience.

    2. Re:Innovation? by QuantumRiff · · Score: 1

      remeber that work on the stealth fighter started in the early 80's. We saw it in action for the first time (officially), in the Panama Invasion. The SR-71 was developed in the 70's, and is retired.. Kinda makes you wonder what they were working on in the 90's, and early 00's doesn't it...

      --

      What are we going to do tonight Brain?
    3. Re:Innovation? by tinrobot · · Score: 1

      >The SR-71 was developed in the 70's, and is retired..

      Early to mid 1960's, actually.

      Retired in 1998.

    4. Re:Innovation? by Anonymous Coward · · Score: 0

      Uh...pretty much every innovation in aircraft was developed in the US. The first flight through supersonic flight, stealth technology, smart missles, in-flight refuelling, fly by wire....the only thing that comes to mind that was invented elsewhere was the jet engine from Germany.

    5. Re:Innovation? by be-fan · · Score: 3, Interesting

      Yes and no. "Innovation" is a bit of a silly word in the engineering world. Engineering is mostly about "evolution" not "revolution". Occasionally, you see something like the SR-71, which break every existing mold, but such designs are few and far between. Consider something like the Boeing 787. It's claim to fame is a 20% increase in efficiency. To an aerospace engineer, that's huge. They'd trade their first-born for a 10% decrease in specific fuel consumption. To hit that 20%, a lot of innovations had to go into the design. But consider the big picture: is the 787, as a whole, really innovative? Not really.

      Japan's aerospace industry in particular is very interested in technologies that even lay-people would see as "revolutionary". For example, if you research the field of hypersonic planes, a lot of that work is being done in Japan. In the United States, the focus is a bit different. Things have become not so much about "faster and higher", but "better, more efficient, and cheaper". Both are innovative in a way, but the former is more "sexy".

      --
      A deep unwavering belief is a sure sign you're missing something...
    6. Re:Innovation? by DeepRedux · · Score: 1
      Check out the new Boeing Dreamliner. Its fuselage is being made out of carbon fiber-reinforced plastic instead of aluminum. This will be the first large plane with an all composite skin.

      Plastic is stronger and lighter than aluminum so the plane can fly faster and use 20% less fuel. There are only 20% as many fasteners as would be needed with aluminum. Maintenance is being guaranteed to be 30% lower than for aluminum planes. They will also be able to pressurize the cabin at the equivalent of 6,000 feet instead of the usual 8,000, which should make it easier to control cable temperature and humidity.

    7. Re:Innovation? by glitch23 · · Score: 0

      Does this do anything for innovation? The new Airbus A380 is the largest passenger airliner in existence.

      --
      this nation, under God, shall have a new birth of freedom. -- Lincoln, Gettysburg Address
    8. Re:Innovation? by iminplaya · · Score: 1

      They look pretty much the same as the dated old jets from the 70s...

      More like the 50s.

      --
      What?
    9. Re:Innovation? by Merlynnus · · Score: 2, Interesting

      OK, admittedly I Am an Aerospace Engineer (IAAE?).

      Considering the big picture, the 787 *is*, as a whole, really innovative. Yes, really. Never before has a large civilian airplane been made with the technology that Boeing will be using to make the 787s: namely large integrated primary structures made from composite materials (not metals). Fuselage. Wing structures. Emppenage. Other secondary structures. Airbus is skeptical (publically) that Boeing, or anyone, can even make big planes that way. Mind you, 90% of that is politics and typical blustering of the chief competitor, but Airbus has never considered (again, publically) using composites to that extent.

      General aviation doesn't count due to the size of the aircraft, low production numbers, the types of materials, and decidely low-tech manufacturing methods.

      Regardless, your point is valid though. While I'd consider the 787 innovative, it's evolutionary and not revolutionary. For revolutionary, sadly, you need to look to the military programs -- or Burt Ratan (google Scaled Composites).

    10. Re:Innovation? by be-fan · · Score: 1

      OK, admittedly I Am an Aerospace Engineer (IAAE?).

      LOL. I'm an Aerospace Engineer in Training (IAAET?) I agree with you completely about the 787, and I alluded to as much when I pointed out that a lot of innovation went into the design of the 787. However, the pop-culture definition of "innovation" includes "revolutionary" in it. If you ask a lay-person whether they think the 787 is innovative, they'll say no. On the other hand, if you ask them other they think this supersonic airliner is innovative, they'll say yes. That'd be true even if the new airliner didn't use any technologies you couldn't find in a decades old Concorde.

      --
      A deep unwavering belief is a sure sign you're missing something...
    11. Re:Innovation? by 0111+1110 · · Score: 1

      Plastic is stronger and lighter than aluminum

      That is not really true. Composite materials are not the same as plastic. 'Plastic' is lighter (less dense) but not stronger than Aluminum.

      --
      Quite an experience to live in fear, isn't it? That's what it is to be a slave.
    12. Re:Innovation? by Anonymous Coward · · Score: 0

      how do they repair the skin if they get a hole in it?

    13. Re:Innovation? by Anonymous Coward · · Score: 0

      There are many small and medium innovations in the design and building of transport category airplanes.

      The use of composite materials is starting to surpass the use of aluminum. Take the Boeing's 787, most of the fuselage will be made of composite materials (see http://www.boeing.com/commercial/7e7/flash.html). This will result in a much lighter airframe. Excess weight is the enemy of any airplane design, since more weight means less fuels which means less range, and also means less payload.

      There have also been many innovations in engine design, that have reduced weight, increased fuel efficiency and decreased engine noise.

      The Commercial Aviation industry is very conservative and that is mostly due to the costs associated with designing and building large commercial transport category airplanes. Airbus estimates that it will cost then between 12 and 15 Billion dollars for the development, fabrication and support of the A380. Not chump change. Also, the regulatory requirements are very stringent and consequently very costly.

      Finally, the look of an airplane is a function of its mission, and the ease and cost of fabrication. Long tubes are simpler and cheaper to build that other shapes.

      Next time you are at an airport, compare the cross-sectional shapes of the fuselages. The ones that look like circles are cheaper and easier to build than does that have an elliptical shape. But, a circular shape or less efficient, since there is more wasted volume than an elliptical shape. It all about making the right compromises for an airplanes stated mission.

    14. Re:Innovation? by corngrower · · Score: 1

      You're not likely to see much change in the basic shape of new aircraft. That's pretty much dictated by aerodynamics. Structurally, the planes built today are different. They use different materials in the wings and some of the load bearing components.

    15. Re:Innovation? by Anonymous Coward · · Score: 0

      how do they repair the skin if they get a hole in it?

      Tell a passenger that the hottest stewardess is wating with her legs open on the other side of the wall.

    16. Re:Innovation? by Alioth · · Score: 1

      If it was right in the wind tunnel in the 1960s, it'll still be right in the wind tunnel now. This is the fundamental reason why (subsonic) airframe designs all look pretty much the same and haven't changed since the first jet airliners - the laws of physics haven't changed since then either.

    17. Re:Innovation? by Anonymous Coward · · Score: 0

      didn't Airbus pioneer the use of composites in wings and tailfins? And wasn't Boeing as skeptical back then?

      I'm no Engineer, the most I know about integrated primary structures is the little I saw from a rather fun documentary on the race to develop the JSF. As I remember it Boeings entry back then made big use of such large composite moulded fuselages and the reason they didn't get the contract was that they couldn't make them so large reliably enough.

      And that was for a much smaller plane. Now I'm sure techniques have improved vastly in the five or six years since, but to me it seems that Airbus isn't being outrageous in pouring cold water on Boeing's hype. The technical hurdles in producing sarge large composite frames are huge.

    18. Re:Innovation? by rufty_tufty · · Score: 1

      Or Helecoptor

      --
      "The weirdest thing about a mind, is that every answer that you find, is the basis of a brand new cliche" -
    19. Re:Innovation? by Merlynnus · · Score: 1

      Well, yes, Airbus has been an industry leader in the use of composites in airplanes. And, yes, Boeing was pretty skeptical.

      And, yes there are challenges in making large integrated parts.

      However, if Boeing can do that, reliably and in high manufacturing volume (well, high for commerical airliners) then ... that's innovative. Airbus hasn't done that, and nor are they planning to (yet). I was merely commenting on the level of innovation. Airbus could have easily pursued a similar approach, and I think that would also have been innovative.

  18. The big question.... by AtariAmarok · · Score: 2, Funny

    The big question is, can it outfly Rodan? The Concorde of the past got around this by being designed to look just like Rodan, and thus discourage predatory attacks.

    --
    Don't blame Durga. I voted for Centauri.
    1. Re:The big question.... by Blakey+Rat · · Score: 1

      I bow to you, sir.

    2. Re:The big question.... by Sporkinum · · Score: 1

      I was thinking of something more along the line of a giant robot that transforms into a supersonic airliner.

      --
      "He's lost in a 'floyd hole"
    3. Re:The big question.... by chris411 · · Score: 1
  19. $1.8 Million invested? by w42w42 · · Score: 3, Insightful

    The $1.8 Million investment should indicate that this is just a study, and that it's probably a lot of hype for whatever reason at the most famous air show in the world.

    Seeing Japan and France in the news together also makes me wonder if this is meant to assuage some of the bust up over the iter reactor.

    At any rate, I'm a bit surprised that the article emphasizes that this is France and Japan, and not Airbus and Japan - as this implies that France is doing this outside of Airbus. Interesting none the less, and I'm sure time will tell.

    1. Re:$1.8 Million invested? by dgb2n · · Score: 1

      You're right on the money, no pun intended. $1.8M at something like $200K per work year for engineering labor (sounds high but reflects moderate corporate overhead, many companies are higher) is only 9 engineers working for one year. It should be one heck of a study but its still not going to pay for much real design.

    2. Re:$1.8 Million invested? by radarvectors · · Score: 1

      1.8 million is peanuts compared to the NASA aeronautics research budget of US$850 million per year. However, NASA's aeronautics programs (non-space) are taking a beating in the funding competition with Moon/Mars programs. I know there's a lot of interest and public support for the flashy and expensive space hardware, but it's the core aeronautics research that has a great impact on our mobility around the planet, reducing energy consumption, and reducing environmental impacts of atmospheric flight. I would like to see an Apollo-like program in aeronautics coupled with a continued space presence.

    3. Re:$1.8 Million invested? by sysadmn · · Score: 1

      You beat me to the punch. Even $1.8MM per year per country only represents 20 - 40 people total. That buys you a feasibility study and some really high level designs.

      --
      Envy my 5 digit Slashdot User ID!
  20. Cool Sushi! by __aaclcg7560 · · Score: 1

    With these new supersonic aircrafts, takeout delivery of real Japanese sushi to anywhere in the world becomes a reality. No longer will you have to eat the local slush!

    1. Re:Cool Sushi! by Anonymous Coward · · Score: 0

      Yeah that's just what we need, to increase the availability of food to you. For fuck's sake fatty, can't you get your fat fucking mind off of fucking food for one fat fucking second?

    2. Re:Cool Sushi! by __aaclcg7560 · · Score: 1

      Your logic is faulty. First, I been on a strict diet and exercise program to increase my weight from 325 pounds to 360 pounds over the last two years by burning fat and gaining muscle. Second, if we meant in person, you would not say those things since you would be running for your life. You don't want to get me angry. Trust me. :P

    3. Re:Cool Sushi! by Anonymous Coward · · Score: 0

      Right...

      "LUCKYCAT FASTSUSHI WHATYOUWANT!?"

      "Delivery, I want tuna sashimi"

      "OK, WE BE THERE IN 7 HOURS! MINIMUM TIP IS $100! THANKYOU!"

      mmm, hours old sushi

    4. Re:Cool Sushi! by brjndr · · Score: 1

      If you're ever in Philly, you can get some kick ass sushi at Morimoto's. Yes, that Morimoto.

      They are opening one in NYC soon too.

    5. Re:Cool Sushi! by Anonymous Coward · · Score: 0

      Your logic is faulty. First, I been on a strict diet and exercise program to increase my weight from 325 pounds to 360 pounds over the last two years by burning fat and gaining muscle. Second, if we meant in person, you would not say those things since you would be running for your life. You don't want to get me angry.

      Aww, poor fatty was distracted by the idea of a Big Mac and could not type good english. Where you from there chunk? Los Gatos, California? Do you ever waddle that fat ass of yours outdoors?

    6. Re:Cool Sushi! by __aaclcg7560 · · Score: 1

      Do you ever waddle that fat ass of yours outdoors?

      I go swimming in an outdoor pool and to the gym everyday to build muscle mass like Arnold. How often do you come out of your parent's basement? Once a decade?

  21. on the Japanese side? by Anonymous Coward · · Score: 0

    'To research closely in this area with the Europeans does represent something new,' said Yoshio Watanabe, an official with The Society of Japanese Aerospace Companies, which is heading the new initiative on the Japanese side.

    I dunno....Yoshio Watanabe sounds awfully French to me. ;)

  22. Beta airplanes! by mpontes · · Score: 3, Funny
    "Hello, this is your commander speaking. We'll be flying the Boeing 959 beta today with known bugs in the engine. If it crashes, the airline says we'll have to wait for the patch that will come out in October. I wish you all a pleasent trip!"

    Is it just me or did it become trendy to call things beta?

    --
    Bored? Browse Slashdot with a +6 modifier for Troll comme
    1. Re:Beta airplanes! by macosxaddict · · Score: 1
      The Microsoft plane of the future:

      "Are you sure you want to use the ejection seat? (Yes/No/Help)"

      "The program Microsoft Pilot has encountered an error, and will be shut down."

      "We're sorry, your 30-day trial version of the hydraulic system has expired. Please enter a license number to continue your flight, or press Cancel to continue your trip underwater."

      "No cockpit found. Press any rudder to continue."

  23. Re:Correction by Anonymous Coward · · Score: 0, Funny
    he plane will carry 300 Japanese passengers or 150 American passengers.

    Well yeah, obviously. Americans are taller, have more muscle, and much larger penises and breasts than the Japanese.

  24. Japan and France by TopSpin · · Score: 0, Offtopic

    Now if they could only figure out a way to resolve this.

    Japan is 127 mega-people with 4 giga-dollars of GDP. France is just over 60 mega-people with 1.6 giga-dollars of GDP. Yet, somehow, France has concluded that Japan must "concede" to France's desire to build ITER in France, as if the conclusion is preordained and we're all just waiting for Japan to figure this out. Almost four years have gone by while we wait for this "decision."

    Thankfully, a controversial US leader had decided that should this stalemate continue, the US will pursue a similar project domestically. The Western world treats France as damage and routes around it.

    --
    Lurking at the bottom of the gravity well, getting old
    1. Re:Japan and France by TopSpin · · Score: 1

      I failed to link something: this

      --
      Lurking at the bottom of the gravity well, getting old
    2. Re:Japan and France by El+Cabri · · Score: 5, Insightful

      France's bid to build ITER is the backed by the EU, so we're talking 450 "mega-people" and 10+ "giga-dollars" of GDP.

      And it is in fact the EU that has promised to build the project on its own anyway if it doesn't go through internationally.

      The whole world treats the US as damage and goes around it.

    3. Re:Japan and France by rsynnott · · Score: 2, Insightful

      Erm, that was Europe, the largest economy in the world, not France. And what IS this sudden anti-French thing? They have a dubious colonial history like every other large developed nation. What IS the problem? Is it the Iraq invasion? Because, erm, only two countries in the EU participated in that, and one of them since withdrew, the other is under pressure from its people to do so.

      --
      Me (Blog)
    4. Re:Japan and France by generic-man · · Score: 1

      Excuse me, this is Slashdot. Could you please restate those figures in mebipeople and gibidollars?

      --
      For more information, click here.
    5. Re:Japan and France by colganc · · Score: 1

      So where is there mention of EU in the article? I see France France France, but no EU. So what are you talking about?

    6. Re:Japan and France by Bill+Walker · · Score: 1
      Is it the Iraq invasion? Because, erm, only two countries in the EU participated in that, and one of them since withdrew

      ...You forgot Poland. ;)

      --
      Please, for the love of God, no more car analogies.
    7. Re:Japan and France by Da+Fokka · · Score: 1

      So where is there mention of EU in the article? I see France France France, but no EU. So what are you talking about?
      Maybe this has something to do with the fact that, although some grand-grandparent poster was trolling about ITER, the actual project was about a supersonic jet plane, which has nothing to do with either fusion power, hentai porn or cheese.

    8. Re:Japan and France by rsynnott · · Score: 1

      Sorry, meant EU at the time of the war. (Think Cyprus or somewhere was also involved).

      --
      Me (Blog)
    9. Re:Japan and France by Rayonic · · Score: 1
      Erm, that was Europe, the largest economy in the world, not France.

      Then why wasn't ITER built in Spain as originally planned? Oh, that's right, petty intra-european politics. Perpetrated by who? You'll never guess.

      Seems there isn't much EUnity, even in "Old Europe".
    10. Re:Japan and France by Anonymous Coward · · Score: 0

      there is no poland there are just 5 polish plumbers who happen to work in france.

      anyway to the grand parent. what has GDP/population to do with projects like ITER or this one.
      if they were working on this by them selves japan would probably be the first one to finish it.
      sure but these are international efforts.
      we all pay to have these advances in energy production/travel.

      why france for ITER well thats rather DHUUUUUUUU
      it's not right next to a huge not so sure if it's a freindly nation and one smaler prolly realy nasty nation nor does france have problems with vulcanoes or huge earth quakes that could posibly damage it.

    11. Re:Japan and France by rsynnott · · Score: 1

      The parent was off-topic; they were talking about an international fusion project.

      --
      Me (Blog)
    12. Re:Japan and France by rsynnott · · Score: 1

      Of course, American states NEVER compete to get a prestigious federal lab... Also, France has one of the world's largest, most innovative and best run civil nuclear programmes, and general public acceptance of nuclear power.

      --
      Me (Blog)
    13. Re:Japan and France by TopSpin · · Score: 1

      El Cabri: France's bid to build ITER is the backed by the EU

      rsynnott: Erm, that was Europe...

      Abject, unmitigated bullshit.

      Only after the debate became protracted did "France" morph into "EU". This became "EU" vs. Japan only after France figured it needed more pull. The early press releases were all about "France" and the "fench technology minister". France expected this built on French soil by the French nuclear industry.

      Now go read the MSNBC article about the new jet development. Not one cotten picking mention of "EU". Big, bold letters: "France", period.

      --
      Lurking at the bottom of the gravity well, getting old
    14. Re:Japan and France by El+Cabri · · Score: 2, Informative

      The EU was the one that would be negotiating at the international level from the start. The French bid first disputed a primary within the EU against a Spanish proposal for who would host ITER if awarded to the EU. After the Spanish retracted their bid the French project officially became the EU proposition.

    15. Re:Japan and France by Anonymous Coward · · Score: 0

      Britain, Italy, Poland, Spain.

      Yep, that would be only two countries if you were a complete moron educated in a government school. The main reason that France, Germany, and Russia were so against the war is because they were on the Oil for Food payment plan. That means that they accepted bribes to allow Saddam to steal more money from the people of Iraq. Their moms must be proud of them.

    16. Re:Japan and France by gnuyarlathotep · · Score: 1

      Didn't the UK, Italy, Denmark, Spain, the Netherlands and Poland all send troops?

    17. Re:Japan and France by Dunbal · · Score: 1

      And what IS this sudden anti-French thing?

      Oh French bashing is the thing nowadays, didn't you know. A couple of hundred years worth of friendship really doesn't mean anything anymore. The fact that France was the United States' very first European ally - nope, not relevant. French assistance against England in their war of independence (anyone hear of Yorktown?) completely forgotten now. Many Americans don't remember that their "Statue of Liberty" was a gift from France because of this great friendship.

      Now we are left to hear tales of French "cowardice" and the fact that France was apparently "rescued singlehandedly" by the US in not one but two world wars, which unfortunately underlines the lack of adecuate historical education in the US nowadays.

      Heck I figure in another twenty years or so the US will declare war on France, damned terrorists that they are. Oh wait, I forget. The US doesn't even BOTHER to declare war nowadays since that would require getting their elected representatives (of which at least some might be intelligent) to agree unanimously. No, now they just do whatever they feel like it without a formal declaration of war. And how easy it is to poison the mind of a people until they are splitting the world into absolutes: "you are either with us, or against us..."

      --
      Seven puppies were harmed during the making of this post.
    18. Re:Japan and France by Anonymous Coward · · Score: 0

      The main reason that France, Germany, and Russia were so against the war is because they were on the Oil for Food payment plan.

      Or simply because they thought it was wrong. Or because the overwhelmingly majority of their population was against it. I know, the truth is sometimes difficult to comprehend...

    19. Re:Japan and France by Anonymous Coward · · Score: 0

      hmmm...

      (4 * 10^9) / (127 * 10^6) = approx. 31.5 ..

      How do those Japanese make the rent in Tokyo?

    20. Re:Japan and France by Mr.+Foogle · · Score: 1
      The whole world treats the US as damage and goes around it.



      Which is pithy and worth a chuckle. Too bad it's not true.

      --
      Display some adaptability.
    21. Re:Japan and France by Anonymous Coward · · Score: 0

      Why do idiots like you not actually read up a little before showing you don't have a clue. France and Spain disputed the project internally in the EU. France then got the backing from the EU when Spain forfeited.

  25. I want US to Japan service by erroneus · · Score: 1

    I've made the trip to and from Japan twice and each time it was more than 11 hours of flight time. My last trip was 13 hours to get there and 11 to get back. This is a very difficult trip even with having exit-row seating on a B777. I don't plan on making such a trip again any time soon for that and other reasons... but if it were 3x the speed of sound, I'd probably want to hop another flight. To get there in 6 or less would be so much nicer.

    1. Re:I want US to Japan service by tsotha · · Score: 1
      To get there in 6 or less would be so much nicer.

      Yeah, sure, but would you be willing to pay double or triple the ticket price to do it? Most people wouldn't.

    2. Re:I want US to Japan service by HuguesT · · Score: 1

      Try London-Sydney. Well over 24h *flight* in two legs, plus a couple-hour stopover somewhere in SE Asia. Then try this with young kids who get bored after 20 minutes in the air.

    3. Re:I want US to Japan service by drsquare · · Score: 1

      How on earth is going on a plane difficult??? All you're doing is sitting down. You can sleep, drink brews, read, it's easy. If you want difficult, try a 12 hour night shift in a freezing cold factory lugging crap about in the rain, on a rock hard floor that wrecks your feet. Half a day sat down on a nice comfortable chair? I'd take that any day.

  26. Re:Fuck France by MightyMartian · · Score: 4, Insightful

    How interesting. You Yanks didn't seem to mind during the Revolutionary War.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  27. Re:Correction by rsynnott · · Score: 1

    Nonsense; the average American weighs far more than that. Some of them are over 500kilos! ;)

    --
    Me (Blog)
  28. Re:Correction by Anonymous Coward · · Score: 0

    Japanese girls do have some large breasts =)

  29. Supersonic workaround by kc01 · · Score: 3, Interesting
    Okay, it's been said above that the U.S. doesn't allow supersonic travel between its borders. True, for commercial aircraft.

    Still:

    1. There's no reason why it couldn't be used for supersonic travel between New York and Europe.
    2. There's no reason why it couldn't be used for supersonic travel between California and Asia.
    3. For flights that go over the U.S., like New York to Tokyo, there's nothing that says the pilots can't throttle back to subsonic speeds while over land, is there?

    If it's fast and fuel/cost/environmentally efficient, I say bring it on. It'll probably be a lot easier to implement than suborbital flight.

    1. Re:Supersonic workaround by blackomegax · · Score: 1

      sub-orbital flight is actually pretty farking easy once you get out of the air. its just one long arc back into the air, then you land. its just costly, atm.

    2. Re:Supersonic workaround by VoidWraith · · Score: 4, Informative

      Except that 3 is irrelevant, for the fact that the flight path looks like this: http://gc.kls2.com/cgi-bin/gcmap?PATH=jfk-tyo (thanks to an earlier poster).

    3. Re:Supersonic workaround by random_static · · Score: 1

      NY to Tokyo shouldn't have to cross all that much US land. curve out a little east of the Atlantic coast and you should be fairly good to go, i'd think. they do fly a polar route on that one, don't they?

    4. Re:Supersonic workaround by AnObfuscator · · Score: 2, Insightful

      I agree with your general thrust, except for point 3.

      The engineering goals (efficiency @ speed @ altitude) dictate certain design parameters -- wing shape & area, fuselage size, engine design, etc. The problem is, an airplane designed to fly for 10,000 miles at mach 1.6 at 50,000 feet is *not* going to fly efficiently at subsonic speeds. So, alas, no, the pilot won't be able to just "throttle down" for 3000 miles... it would make the plane vastly more expensive to operate.

      --
      multifariam.net -- yet another nerd blog
  30. I guess they didn't lose enough $ the first time by Anonymous Coward · · Score: 0

    At least the Brits learn from their mistakes...

  31. Re:Fuck France by MightyMartian · · Score: 1, Offtopic

    Yes, the Americans were oh so quick to come to help. They also found it convenient to arm Britain in a selfless act that included taking virtually every drop of money the Brits had earned since Elizabeth I's day.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  32. Sumo by mxpengin · · Score: 1

    Well if you consider that a japanese sumo fighter rarely has a weight smaller than 130 kg (285 lb) , then your asumption can be incorrect in some cases. I live in japan , and yes, and average japanese is smaller/thinner/(maybe healthier) than an average person from the USA, but if you take in account the 60kg that you can take as baggage in a flight, the difference in the proportion is smaller. And if you know the pain in the A## ( literally ) that is a trans-pacific flight , then you understand why they are doing this.

    --
    "We all know Linux is great...it does infinite loops in 5 seconds." -- Linus
    1. Re:Sumo by Black+Tezcatlipoca · · Score: 1

      And if you know the pain in the A## ( literally ) that is a trans-pacific flight , then you understand why they are doing this. You dont know PITA until you've flown from Melbourne to LAX.

  33. Re:Fuck France by Anonymous Coward · · Score: 0

    Grow the fuck up. What are you people, 12? I know this is Slashdot, but this is ludicrous. Look, both countries have had moments of need when the other did something helpful, but have had moments in time they are not proud of, and both have moments that they are very proud of. So drop the testosterone level a bit and act like adults, how 'bout it?

    Not that this post is going to do anything. Trolls live for this shit.

  34. internet has obsoleted the necessity for contact by t35t0r · · Score: 3, Insightful

    The internet/voip and other communication mediums have obsoleted the necessity for face to face contact and the costs associated with business travel. This is why (at least in the US) airlines are going bankrupt every single year. Only southwest manages to survive, but that's because they are like the walmart of the skies.

  35. Offtopic _and_ a troll by Anonymous Coward · · Score: 2, Insightful

    What does this have to do with the story? Did a frenchman bite you when you were young or something? The western world treats you like a troll and ignores you.

  36. Re:Fuck France by rsynnott · · Score: 2, Insightful

    You know, the Americans eat more cheese than the French. And without France you might well still be a British colony. Damn uppity colonials ;)

    --
    Me (Blog)
  37. Actually GWB's IQ is well above average by Anonymous Coward · · Score: 0

    i.e. well over 100.

    Remember how bad average is, then realize half of the people you meet are worse than that.

    Note: It holds for any sub-population as well.

  38. Re:I guess they didn't lose enough $ the first tim by rsynnott · · Score: 1

    Comparing this to Concorde is very silly. It's a bit like comparing the Sputnik launcher to a modern sattilite launcher. Concorde and Sputnik were cold war silliness. The modern launcher and hopefully this new aircraft, are economical, otherwise nobody would be building them

    --
    Me (Blog)
  39. More efficient in one direction than the other! by Anonymous Coward · · Score: 0

    When you can go that high and fast, the spin of the earth becomes a factor. (The same thing happens if you're aiming artillery.)

    Basically, if you leave New York, rise to 100 km and stay there for a few hours while the earth revolves under you, you come down in Tokyo. Going the other direction, the effect reverses. The theoretical energy to do this is probably less than 200 kWh/passenger. That makes the cost about $20! OK so it's not going to happen in my lifetime but there is still a LOT of room for improvements in efficiency.

    Actually, this seems like a really good use for the space elevator.

    1. Re:More efficient in one direction than the other! by random_static · · Score: 1

      does that theoretical energy of yours include what it takes to remain at 100KM altitude for a few hours...?

    2. Re:More efficient in one direction than the other! by davidgay · · Score: 1
      Somebody's been skipping their physics courses... Theoretical energy to stay at a fixed altitude: 0.

      Now the practical energy is a different question, of course...

    3. Re:More efficient in one direction than the other! by tompaulco · · Score: 1

      The spin of the Earth is definitely a factor, however, the Earth is not just going to spin under you. You still have the atmosphere to deal with. In some locations, it runs counter to the rotation of the Earth, and in other locations, it runs with (and faster than) the rotation of the Earth. At very few place and for very short lengths of time, does any part of the atmosphere move with the rest of the planet.

      --
      If you are not allowed to question your government then the government has answered your question.
  40. really? by KH · · Score: 4, Interesting
    I've read the news at BBC. It states

    Companies from the countries will split an annual investment of $1.84m (£1.01m) for research over the next three years, Japan's trade ministry said.

    That sounds like an awful little money for such a project. I'm really not sure if they actually are planning to build working planes.

    On the other hand, this makes some sense. The French not only participated in Concorde, but have been making supersonic fighter jets for a long time. It appears France is only country who can still build supersonic jets with 100% ingenious technology. And it's a major member of the European consortium (Airbus).

    There have long been a frustration in the Japanese aerospace industry that the Americans banned them from pursuing cutting edge aerospace technology after the WWII. It is a commonly held view that the US didn't want Japan to acquire know-how in that area so that she can independently develop and compete in the military aircraft field. (Mitsubishi, Kawasaki, and Subaru used to make airplanes. Look where they went.) So, the US kept supplying technology to Japan while not allowing ingenious know-how to accumulate.

    A famous incidence was when the Japanese were planning a new fighter/attack plane. Those in the uniform wanted to go ingenious design (they always want to go domestic even when the equipment is prohibitively expensive), but because of the pressure from the States, it became a joint project between Japan and the US based on F-16 design. The result Mitsubishi F-2 is mediocre at best.

    I would imagine there is a genuine fear that aerospace industry gets monopolised by Americans in the near future among other countries. So, a supersonic passenger plane appears to be a good excusable exercise to develop and accumulate the technology, especially when Americans are not seriously doing it.
    1. Re:really? by w42w42 · · Score: 1
      The French not only participated in Concorde, but have been making supersonic fighter jets for a long time. It appears France is only country who can still build supersonic jets with 100% ingenious technology.

      I think that instead of 'ingenious' you mean 'indigenous'. France isn't the only country by a long shot though. Heard of the US, Russia, China, England, Italy, Brazil, or yes, Japan?

      A famous incidence was when the Japanese were planning a new fighter/attack plane. Those in the uniform wanted to go ingenious design (they always want to go domestic even when the equipment is prohibitively expensive), but because of the pressure from the States, it became a joint project between Japan and the US based on F-16 design. The result Mitsubishi F-2 is mediocre at best.

      The F-2 is actually an awesome aircraft, improved from the F-16 for over water operations. Its enormous cost in comparison to an F-16 should also note Japans desire to have an independent aerospace industry, with the US's approval. If the US really didn't want Japan to have an aerospace industry, I'd have to question the necessary technology transfers for this aircraft to be built. Besides that though, have you ever heard of the Mitsubish F-1 fighter, built domestically in Japan?

      I think the larger issue for Japan has been their pacifist constitution, and the idea that if they became an exporter of military technology, it might stoke fears elsewhere in the region. As to capability, I believe Japan could probably do this project on their own w/o outside help if they wanted to take on the cost and risk themselves.

    2. Re:really? by davejenkins · · Score: 1

      Boy, what a goofy post.
      1. How can French technology be 100% "ingenious"? Does that mean that other countries have a certain percentage of "mediocre" or "dumb" technology? Or did you mean to say "indigenous"? In that case, how do you jibe that with your very next sentence about France participating in the Airbus consortium? What about all the other countries with 100% indigenous tech? US, Russia, UK, Japan...

      2. Your reference to a 'commonly held view' about the US not wanting Japan to acquire know-how is patently false. The US poured technology transfer into Japan after the war. You obviously have not studied history nor post-war politics.

      3. There is no 'fear' of a US 'monopoly' on aerospace. Again, there is Airbus, and a host of other companies doing very cool things.

      In short, please keep the wild generalizations and blanket pop-science to yourself.

    3. Re:really? by Anonymous Coward · · Score: 0

      Heard of the US, Russia, China, England, Italy, Brazil, or yes, Japan?

      Or Sweden. I belive we have the distinction of being the smallest (in population) country to have our own fighter plane design.

    4. Re:really? by Pig+Hogger · · Score: 1
      On the other hand, this makes some sense. The French not only participated in Concorde, but have been making supersonic fighter jets for a long time. It appears France is only country who can still build supersonic jets with 100% ingenious technology. And it's a major member of the European consortium (Airbus).
      There have long been a frustration in the Japanese aerospace industry that the Americans banned them from pursuing cutting edge aerospace technology after the WWII. It is a commonly held view that the US didn't want Japan to acquire know-how in that area so that she can independently develop and compete in the military aircraft field. (Mitsubishi, Kawasaki, and Subaru used to make airplanes. Look where they went.) So, the US kept supplying technology to Japan while not allowing ingenious know-how to accumulate.
      France was very lucky. Roosevelt wanted to totally annihilate it's industrial facilities and occupy it like it occupied Germany and Japan; it is only thanks to De Gaulle who managed to convince him that the Résistance (who was so effective in preparing the D-Day invasion) would turn against the yankees that he relented and let the French keep their industrial base, allowing it to become the technological powerhouse it is now, instead of being forced to use substandard and expensive US technology.
    5. Re:really? by El+Cabri · · Score: 1

      France is indeed the only country, besides the US and Russia, to be able to build and aquit a modern fighter jet all on its own, as in structure AND engines AND radar/avionics AND weapons.

      England, Italy, Brazil and Japan have no such project on their own. The UK hasn't had a fully national project since the Harrier in the 70s, which they passed on to the US which developped the Harrier II essentially on its own. The Eurofighter Typhoon is made in cooperation with Germany, Italy and Spain, and the UK is a junior partner on the JSF. They have an advanced trainer program (the Hawk) which is just a trainer and not very new either.

      China, Japan and Brazil have never developped a full plane on their own, even though they have done / have the capacity to produce under license.

      As for Sweden, it is true that the Gripen is quite indigeneous. However it depends on foreign suppliers for its weapons and they sell it in a joint venture with Britain's BAe Systems.

    6. Re:really? by w42w42 · · Score: 1

      If the ability to build your own engines and avionics is a requirement, then you're right. I believe China is fast approaching this capability though.

      The fact that the UK has not had a project since the 70's doesn't mean they lack the capability. They used to be at the forefront of western design.

    7. Re:really? by Anonymous Coward · · Score: 0

      'aquit'

      the word is 'equip'. repeat after me 'equip'

    8. Re:really? by Anonymous Coward · · Score: 0

      or if you really need it to begin with an 'a' - 'accoutre'. that's right. french word in the english language. look it up.

      same ac as above.

  41. Supercavitation missile and sub. by zymano · · Score: 1

    Why not for air if it works for sea ?

    http://www.stratmag.com/issueJan-15/page03.htm

    http://www.fas.org/man/dod-101/sys/missile/row/shk val.htm

    http://www.nationmaster.com/encyclopedia/Supercavi tation

    1. Re:Supercavitation missile and sub. by be-fan · · Score: 1

      Supercavitation works by causing the fluid the object is traveling through to vaporize. In the case of air, the fluid is already vaporized, so what would form the bubble?

      --
      A deep unwavering belief is a sure sign you're missing something...
    2. Re:Supercavitation missile and sub. by zymano · · Score: 1

      Air.

    3. Re:Supercavitation missile and sub. by be-fan · · Score: 1

      How do you get a bubble of air in a medium of air? It makes no sense. Hell, even if you had a bubble of air, they'd be no point --- the reason supercaviation makes things more efficient is that moving through water vapor is more efficient than moving through water. If you've got a bubble of air moving through air, you haven't gained anything.

      --
      A deep unwavering belief is a sure sign you're missing something...
    4. Re:Supercavitation missile and sub. by Dunbal · · Score: 1

      Maybe moving through a local area of less dense air is more efficient?

      --
      Seven puppies were harmed during the making of this post.
    5. Re:Supercavitation missile and sub. by be-fan · · Score: 1

      You can you make the air less dense? Supercavitation works through vaporization --- yo can't vaporize air.

      --
      A deep unwavering belief is a sure sign you're missing something...
    6. Re:Supercavitation missile and sub. by Dunbal · · Score: 1

      I seem to remember that if you heat up a gas, it becomes less dense...even if it's still a gas.

      --
      Seven puppies were harmed during the making of this post.
    7. Re:Supercavitation missile and sub. by be-fan · · Score: 1

      But supercavitation-based designs don't heat up the incoming flow. Doing so would require a high energy investment. They use cavitation to flash-vaporize parts of the flow.

      --
      A deep unwavering belief is a sure sign you're missing something...
    8. Re:Supercavitation missile and sub. by zymano · · Score: 1

      Discover magazine had a article(88,not sure)on rockets launched from a railgun that had some explosive on the tip that reduced air density.

  42. NOT goatse! Re:Engine Noise? by WolfWithoutAClause · · Score: 1
    :-)

    You suspicious people!

    --

    -WolfWithoutAClause

    "Gravity is only a theory, not a fact!"
  43. Re:just what the world needs by Anonymous Coward · · Score: 1, Insightful

    A plane flies for 35 years and has one accident, what do you want them to learn exactly, not to try it again??

    The Concorde project started in the 50's, you think it just might be a little bit possible that airplane design is different today than it was 50 years ago? Or you think maybe we haven't learned anything in the last 50 years?

    Are you just assuming they are strapping rockets and fuel tanks onto a plane and sending it on its merry way? Isn't the risk of an accident 50 years down the road worth the benefits of technological improvement during that time?

  44. Re:Correction by fred+fleenblat · · Score: 3, Funny
    Well yeah, obviously. Americans are taller, have more muscle, and much larger penises and breasts than the Japanese.

    Sometimes all in the same person!

  45. Re:Correction by Anonymous Coward · · Score: 0

    Yeah, and some Japanese guys have large penises, too.

    Is there a point to any of this? The OP was an honestly funny joke, the response was pretty damn racist, and yours was observant but incomplete, so I guess now mine has to be the academic answer.

    Japan doesn't have a millennia-old culture of consuming dairy products past infancy, so of course the people are going to be smaller on average. The same can be said of many Southeast Asian groups (unlike Western Chinese, Mongolians, and some of the Koreans who are descended from them, all of whom have a long history of drinking milk into adulthood and far fewer cases of lactose intolerance than Japan). Japan is going to need a couple hundred years for the population to change their diet, and of course not everyone is doing so because of the aforementioned lactose intolerance (Pearl soy milk, anyone?). As a result, expect many things traditionally attributed to Japanese to change, including such things as women starting to menstruate as late as their 30s, which was a common case as recently as the 1940s. Do you think Eastern China has always produced 7'-8' tall NBA hopefuls, or that Americans have always been obese on average? No, these changes take time and a concerted effort (or at least an abundance of food without an abundance of physical activity, as is the case with those Americans who happen to be morbidly obese).

    I'm American, BTW, so please, don't think I'm trying to paint all Americans as fatsos. But to my fellow Americans who might be thusly offended anyway - get real. Just look around you; chances are, if you're in a room with ten or more people, there's a fat person within your line of sight RIGHT NOW. No offense intended, really.

  46. Planning to write MS Flight Sim 20? by aCapitalist · · Score: 1

    $1.8 million a year for 3 years. Yeah, I'm sure this will be a mediocre new flight sim for Microsoft.

  47. Re:MODERATION ABUSE by Anonymous Coward · · Score: 0

    I am an American, and the first impression I got out of it was that the Japanese were the targets of the joke, possibly referring to them as "runts" or something. I can understand the joke to be applicable either way, and either way, it's still kind of funny (or at least, not completely offensive, unlike some of the responses it's gotten so far).

    Anyway, just my thoughts. If you read the joke and felt offended as an American fatass, I guess that's up to you.

  48. Re:Fuck France by mattjb0010 · · Score: 1

    Considering that you're referring to us as "Yanks"

    Totally off-topic post, but in some parts of the world (at least Australia to my knowledge) the term "yank" or "yankee" refers to any American.

  49. Re:Correction by Anonymous Coward · · Score: 0

    "...Japan is going to need a couple hundred years for the population to change their diet..."

    Begs the question: why would we want to change our diet? Increase our height and penis size? Not everyone's obsessed with those things, though. You Westerners are strange that way.

    Maybe I misread you, but I mean, that's sort of like me saying that maybe Americans will start living into their 90s and 100s once they start eating sushi every day.

  50. Re:MODERATION ABUSE by Anonymous Coward · · Score: 0

    They were both offtopic, but one was funny and the other was just stupid. I suggest you stop bitching about the moderation; nobody gives a shit anymore.

  51. The thing is by Sycraft-fu · · Score: 3, Informative

    Supersonic jets in the past used real jets, not turbofans, afterburners if you like. Basically just burning raw jet fuel and using the hot gas to accelerate the plane. Fast, but VERY inefficient. Normal jets get theri efficiency from their turbofan engines.

    Now these days It is possible in theory. The FA-22 has engines that can go supersonic on turbofan, but I don't know that they'd pull Mach 2 (I dunno how fast they can go on TF before they need to go burner). Also just because they can make a small fighter do it does not mean they can make a large passenger jet.

    If the jet is a real jet engine it'll be fairly noisy and not very efficient as compared to the new Boeing and Airbus offerings.

    So it really depends on what kind of implementation they can get. If they make a jet that's all turbofan, and can do efficient subsonic flight then ya, might be a winner. If it's just a new Concorde I'mm betting costs will be prohibitive, and noise a major problem.

    1. Re:The thing is by Moofie · · Score: 1

      OK, what's the difference between a "real jet" and a "normal jet"?

      --
      Why yes, I AM a rocket scientist!
    2. Re:The thing is by be-fan · · Score: 3, Informative

      There is a reason turbofans aren't used on mach 2+ aircraft. The basic problem is that in order to operate a turbofan at supersonic speeds, you have to use an engine inlet that uses a shock wave (or a series of shock waves) to slow down the flow to subsonic speeds before it hits the fan blade. Fans, like all propellors, drastically lose efficiency as the incoming flow approaches supersonic speeds. This design causes the loss of some energy, so at a certain point, a turbojet actually becomes more efficient than a turbofan.

      --
      A deep unwavering belief is a sure sign you're missing something...
    3. Re:The thing is by green99 · · Score: 1

      >Fans, like all propellors, drastically lose efficiency...

      Not quite true - the engines for the F-22 Raptor are F119 Turbofans (http://www.pratt-whitney.com/prod_mil_f119.asp)
      which enable the aircraft to achieve supersonic flight without afterburner (quite an achievement).

      A turbofan and turbojet are both turbine engines with a set of fan blades as the first thing the incoming air "sees" after the inlet. These aren't like propeller blades - the solidity ratio is much higher for the turbofan (unless you are talking about the unducted fans, which were really super-turboprops, and still didn't have that many blades compared to a typical turbofan).

      The difference between a turbofan and a turbojet is that a turbofan has some air that bypasses the "core" of the engine (the combustors and turbine section). This (generally) results in a more efficient design, depending on altitude, conditions, etc. Overall, turbofans and turbojets are very similar in concept - the turbojet is really a turbofan with zero bypass air.

      Don't take my word for it - here's a good explanation of the differences (with illustrations).

    4. Re:The thing is by green99 · · Score: 1

      From the parent post:

      Supersonic jets in the past used real jets, not turbofans, afterburners if you like. Basically just burning raw jet fuel and using the hot gas to accelerate the plane. Fast, but VERY inefficient. Normal jets get theri efficiency from their turbofan engines.

      Turbofans are "real" jets. Turbojets can be thought of as turbofans with zero bypass air. The overall layout of both is the same, and they have the same components. Turbofans can have afterburners also - that's really a separate part of the engine (conceptually speaking).

      This page has a good explanation of the various types of "jet" engines.

    5. Re:The thing is by be-fan · · Score: 2, Informative

      Not quite true - the engines for the F-22 Raptor are F119 Turbofans (http://www.pratt-whitney.com/prod_mil_f119.asp)
      which enable the aircraft to achieve supersonic flight without afterburner (quite an achievement).


      It's completely true. I didn't say you couldn't have turbofans that operated at supersonic speeds. I said that turbofans:

      a) cannot reach really high supersonic speeds
      b) are less efficient than turbojets at some mach number

      This is all the result of the fact that airflow through the fan must be kept subsonic, or else there is a drastic loss of efficiency. If you look at supersonic turbofans like on the F-22, you'll notice the intakes I mentioned that slow down the flow to subsonic speeds before the air hits the fan blades.

      A turbofan and turbojet are both turbine engines with a set of fan blades as the first thing the incoming air "sees" after the inlet. These aren't like propeller blades

      Turbojets have no fan, they just have a compressor before the combustor. And the solidity ratio doesn't make that much of a difference, fans can be treated using the same theory as propellors. Like propellors, they suffer a drastic loss of thrust as the incoming air approaches sonic speeds.

      Your description of turbofans versus turbojets is correct, but you have to consider why turbofans are more efficient. Basically, it's a result of the following two equations describing the jet exhaust:

      Thrust = mass-flow-rate * velocity
      Kinetic energy = 1/2 mass-flow-rate * velocity^2

      As you can see, thrust increases linearly with both thrust and velocity, but the kinetic energy of the air increases quadratically with velocity and only linearly with mass. Any kinetic energy imparted into the exhaust air is basically wasted from the engine's point of view, so its desirable to minimize this residual energy. As you can see, you can double thrust by either doubling the mass-flow-rate or doubling the velocity. Both give you the same thrust, but the latter approach leaves twice as much residual energy in the exhaust.

      Turbofans work on the principle of maximizing mass flow rate and minimizing exhaust velocity. Instead of moving a little bit of air at high speed through the core, they extract most of that core energy at the turbine, and use it to drive a fan that moves a lot of air at low speed through the bypass ducts. The result of this is that in a high-bypass ratio turbofan, the fan provides the vast majority of your thrust.

      Now, it becomes obvious why turbofans don't work well at high supersonic speeds. The closer the flow through the fan gets to sonic, the less efficient the fan becomes at providing thrust. Since the fan provides most of the thrust of the engine, the engine suffers a drastic thrust loss.

      --
      A deep unwavering belief is a sure sign you're missing something...
    6. Re:The thing is by green99 · · Score: 1

      Most everything you've said is true, but most turbojet installations also have an inlet geometry designed to slow the incoming air via shock wave(s). Thus, the turbine (whether turbofan or turbojet) sees incoming air at less than supersonic speeds. For example, the F-15 (now about 33 yrs old) has been using turbofan (albeit with a bypass ratio of about 0.7) - it's capable of Mach 2.5 or so at altitude. I don't know of an installation designed for supersonic flight that exposes the fan (or compressor) to M > 1 (not to say they aren't out there - just that it's not the conventional design).

      A turbojet has the same problems with supersonic incident air as a turbofan (although a fan should be affected more, everything else remaining the same). Not all turbofans have the high-bypass configuration - the fighters listed above don't when compared to what you see on a passenger jet. For example, the bypass ratio on the Rolls Royce Trent 900 on the Airbus 380 is about 8.5 - I agree , you won't be using these for supersonic flight. However, the assertion that turbofans don't work well at higher Mach numbers (I'm talking 1-2+) isn't correct, unless we're talking about a "naked" jet hanging out on a pylon and not an installed engine.

      I think if you look at most recent (last 30 years) supersonic fighter jets, you'll find they use turbofan engines (from some quick googling):

      F-14A: (2) TF30-414A Afterburning Turbofans with over 40,000 lb Total Thrust
      F-14B/D: (2) F110-GE400 Afterburning Turbofans with over 54,000 lb Total Thrust
      F-16 Pratt & Whitney F100-PW-200 Turbofans
      F-18 Hornet: Two F414-GE-400 turbofan engines

      MiG-29 2 RD-33 turbofans

      And the list goes on.

    7. Re:The thing is by hcdejong · · Score: 1

      Turbojets have no fan, they just have a compressor before the combustor.

      The hardware is the same (a series of 'propeller blades' on a shaft driven by a turbine), so in that sense they're identical.
      The only difference between a turbojet and a turbofan engine is where the air goes once it exits the fan/compressor: does it all go through the combustion chamber (turbojet) or is part of it led straight out the back of the engine (tubofan).

      For turbojets, inlet air has to be subsonic just like for a turbofan.

    8. Re:The thing is by be-fan · · Score: 1

      You're right that a turbojet has to deal with the same issues with its compressor, but its easier for the turbojet because the mass flow rate through the core is relatively small. Ie: the tips of the compressor blades don't hit supersonic flow nearly as quickly as the tips of a larger fan blade. Less total energy is also lost due the shock-waves because less air needs to be slowed down to achieve a given level of thrust.

      Now, all of the engines you mentioned are turbofans, but they have two main characteristics:

      1) They're really low bypass ratio, so the core still provides most of the propulsion. This is unlike a high-bypass turbofan where the core provides 80% of the propulsion. These are affected far less by a loss of fan efficiency.

      2) None of these aircraft are designed to cruise at mach 2+. They can only burst to that speed using afterburners. If you look at something like the F-22's engine (the F119-PW-100), you'll see that it's designed for a supercruise mach number of only 1.58, and uses a very low bypass ratio (~0.2) in the process.

      --
      A deep unwavering belief is a sure sign you're missing something...
    9. Re:The thing is by green99 · · Score: 1

      I think we probably agree more than disagree - any turbofan for high speed applications will be a low bypass setup. At the moment though, I don't know of any flying aircraft that cruise at Mach 2+, turbojet or turbofan. I think the noise issues from a "pure" turbojet tend to push it out of the running (for civillian applications).

      This isn't something I've looked into much lately, but did some reading - interestingly enough NASA was (is?) pushing a mixed-flow turbofan for supersonic (Mach 2+) cruise.

      Some good diagrams for recent ideas on supersonic airliner propulsion can be found in [PDF file]. Most of these are centered around a low-bypass turbofan, although tweaked around to deal with the issues of high-speed flight and low-speed noise.

      Personally, I don't think the engine type is the main issue to this type of aircraft - I suspect the environmental issues will be more critical (not just talking about sonic booms, but the exhaust products from the engines and the takeoff noise).

    10. Re:The thing is by be-fan · · Score: 1

      The basic thing I was trying to get at (at the beginning of the post), is that turbofans are not always more efficient than turbojets. The original poster implied that a supersonic transport would be more efficient if it used turbofan engines, which is generally not true in the mach 2-3 speed regime. Turbojets are more efficient than turbofans in that regime. If you look at NASA's mixed-flow turbofan, you'll note that they point out that its a compromise. It compromises some of a turbojet's supersonic cruise efficiency to reduce noise during takeoff.

      --
      A deep unwavering belief is a sure sign you're missing something...
    11. Re:The thing is by be-fan · · Score: 1

      That's true, but multi-stage compressors deal with transonic air much better than single-stage fans. Plus, low-flow intakes for supersonic turbojets are more efficient (have higher pressure recovery) than high-flow intakes for supersonic turbofans.

      --
      A deep unwavering belief is a sure sign you're missing something...
  52. Norfolk & Waypal Railways by sharkey · · Score: 1
    fly from New York City to Tokyo in a mere six hours.

    Across country ... overnight ... by train -- Norfolk & Waypal!

    --

    --
    "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
  53. Re:just what the world needs by Anonymous Coward · · Score: 0

    Nope.

  54. It's 2005 by ColaMan · · Score: 1

    Where the hell is my hypersonic flight to tokyo?
    Oh, another 10 or 15 years yet?
    Well, I guess I'll just have to suffer on with my flying car... er, personal robotic assistant... er, fusion-generator in my basement... eh, forget it. I'll be in the lounge room watching Astro-Boy reruns.

    --

    You are in a twisty maze of processor lines, all alike.
    There is a lot of hype here.
    1. Re:It's 2005 by Anonymous Coward · · Score: 0

      We'll have instant teleportation before then.

    2. Re:It's 2005 by tsbiscaro · · Score: 1

      Where the hell is my hypersonic flight to tokyo?

      I don't care about hypersonic speed... I want Ludicrous speed, or Burlesque speed

    3. Re:It's 2005 by rsynnott · · Score: 1

      On the other hand, we have cheap global communication, genetic engineering, nanotech emergent, better and cheaper computers than anyone in the past could have seriously imagined, cures for some cancers, and, of course, Professor Warwick ;) Things don't always work out the way you'd think.

      --
      Me (Blog)
  55. ObSimpsons by sharkey · · Score: 1

    Folks, we're currently experiencing some Godzilla-related turbulence...

    --

    --
    "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
    1. Re:ObSimpsons by Anonymous Coward · · Score: 0

      hahaha... Some cliche about bad kiddies movies that seems to be the only things american geeks have heard about... hahaha that is so teh funnay...

      Lets say something about hte frog eating cheeze surrender monkeys now, hahaha, it will be also teh funnay...

  56. Please omit the definite article. by JulianOolian · · Score: 1

    Sorry to be pedantic and all, but it's just "Concorde", not "The Concorde"; like it's an idea more than a thing.

    1. Re:Please omit the definite article. by Poorcku · · Score: 1

      The French called overflying examples "the Concorde" and the English, simply "Concorde". uhmm...relevant? dunno

      --
      I take my children to see Madonna(..), but I never for once ever thought I was in the same business.Chris Rea.
    2. Re:Please omit the definite article. by feandil · · Score: 1

      because french are not used to give pet names to vehicles, contrary to the english. that's why they maintain the article to distinguish it from the common noun "concorde" (pretty much the same as concord in english)

  57. Re:I want US to Japan service - for which cities? by WillAffleckUW · · Score: 1

    I've made the trip to and from Japan twice and each time it was more than 11 hours of flight time. My last trip was 13 hours to get there and 11 to get back.

    I personally wouldn't mind Tokyo-Vancouver-NYC flights or Tokyo-Seattle-NYC flights - since I frequently fly from Seattle to Paris or Seattle to Milan and used to fly from Vancouver to Auckland or Sydney.

    The only problem is which airport will take this? If they put it in Boeing Field here in Seattle, where Southwest Airlines is moving (since SeaTac is too crowded), the sonic booms will be too much. Even SeaTac might be problematic, and the last commercial supersonic airflight ended at Boeing Field, so one can never tell.

    --
    -- Tigger warning: This post may contain tiggers! --
  58. Re:Fuck France by jcr · · Score: 1

    Dude,

    Don't feed the trolls.

    -jcr

    --
    The only title of honor that a tyrant can grant is "Enemy of the State."
  59. Re:Fuck France by be-fan · · Score: 1

    Heh. And if it hadn't been for the Russians, the Germans would have won anyway, conquered continental Europe, consolidated all of its resources, and the Americans would have been powerless to stop them. Yet, Americans don't defer to the Russians very easily...

    --
    A deep unwavering belief is a sure sign you're missing something...
  60. Re:MODERATION ABUSE by Anonymous Coward · · Score: 0

    Erm, "good and a factual" is pushing it, it's called sarcasm. So while you're quite right that it was moderated incorrectly (it's clearly on topic in the context of the thread, and mildly amusing), the fact that you didn't get it either shows the perils of attempting sarcastic humour on slashdot.

  61. Re:internet has obsoleted the necessity for contac by pomo+monster · · Score: 2, Interesting

    I disagree. The Internet and VoIP have increased the need to see people face to face. The reason's simple: these technologies accelerate the pace of business and other things that require flying. And while you can conduct business (and entertainment, and even leisure, to a certain extent) remotely, it's much to your advantage to see people face-to-face. That's why, incidentally, central business districts have little to fear from cheaper office rents in suburbia and farmland.

    Remember how computing and the internet were supposed to herald the "paperless office"? Remember how demand for paper products instead exploded in the '90s? It's the same thing.

  62. Re:just what the world needs by Zeussy · · Score: 2, Insightful

    Concorde had the safest flight record of any commericial plane. The more ironic thing is that concorde crashed because a piece fell of a different plane, and the debris was lieing on the runway, punctured the tire which ripped into the underside of the wing causing a massive fuel leak which got ignited by the engines and therefore crashed and blew up.

    Remember more people die per year on Britains roads alone than the total number of air crashes per year. It is by far the safest method of travel.

  63. Train would be cooler by hey · · Score: 1

    How about some undersea tracks from Calif. to Japan. But some bullet trains on there - now that would be cool.

    1. Re:Train would be cooler by rsynnott · · Score: 1

      Also just a little more expensive ;) And considering the US's current obsessive paranoia, I'd say they'd have similar worries to those the English had when the channel tunnel was proposed by Brunel in the 19th century...

      --
      Me (Blog)
  64. Re:Fuck France by Anonymous Coward · · Score: 0

    "...and wouldn't have held up had it not been for us."

    Hi, grandpop!

  65. Re:Fuck France by Anonymous Coward · · Score: 0

    You have changed my outlook on this.

    There's some decent reading regarding your method of changing minds, located over at Wikipedia.. It's worth a look.

  66. Re:just what the world needs by Anonymous Coward · · Score: 0

    Singular. Disaster. The Concorde had a hell of a safety record. See previous replies.

    Also, look into the details of the disaster. It had little, if anything, to do with the fault of the plane itself. It was an accident in nearly the truest sense of the word. Bad timing and situation than an engineering or human error--runway debris from a previous plane gets hit, tire explodes, gets sucked into engine at the point of takeoff, engine fails, resulting in crash.

    That would be the equivalent of a pipe falling off a truck, puncturing your cars tire, you regain control, only to have the wheel catch due to the turning rubber and you then slam into a tree...most people wouldn't fault their cars design for something like that.

  67. Laws of Physics by EddyKilowatt · · Score: 3, Informative

    SST's get re-studied every decade or so. Boeing and Douglas (remember them) last took their turn in the 80's, courtesy NASA funds. Gulfstream and one of the Russian design houses got far down the road toward a supersonic bizjet in the 90s. Now it is Japan's turn. They all run into the same laws of physics, and the same laws of economics. Until there's a breakthrough in engines, structures, fuels, or aerodynamics (or perhaps all four), don't look for an SST anytime in the next decade or two. An SST could be built today, even without breakthroughs, but it wouldn't make anybody any money. The laws of physics guarantee that the planes are exotic (skin temperature hot enough to boil water), thirsty (inefficient supersonic wing lift), and noisy (sonic boom = flight routes over land very restricted). These factors all add up to expensive tickets, and the market studies (including the one called Concorde) all show that the market isn't there. And that's not even beginning to take environmental concerns into account, such as high-altitude ozone depletion and of course greenhouse gas emissions.

    1. Re:Laws of Physics by Anonymous Coward · · Score: 0

      I'm amused that you think greenhouse gas emissions are even remotely relevant to airplanes. Aerospace is not an area where you can compromise performance for environmental friendliness, and even if you could, it would be like pissing in a river. Compared to the world's fleet of cargo ships, all burning the viscous garbage that comes out the bottom of a refinery's distillation system, air travel emissions are utterly negligible. It's been suggested that in some port cities those ships alone are responsible for half of the air pollution - the fuel they burn is so thick that it needs to be heated to even flow; it's one step above tar. We'll take care of the ships after we take care of the world's automotive fleet. Maybe *then* we'll start giving a damn about jet engine greenhouse gas emissions. Get a grip.

  68. Big Jumps by Doc+Ruby · · Score: 2, Insightful

    These long jumps are the place for supersonic travel. With the hours of overhead of travel, reducing NYC/Paris from 6h to 2h makes very little of difference: you're still taking a whole day each way. At 600MPH, though, that overhead plus 15h travel winds up taking two days each way. For a trip that's usually a week, which means 4d travel / 7d total = 57%, down to 29%. Which means less time traveling than visiting, rather than the disproportionate reverse. With those proportions, a weekend trip anywhere in the world starts to be worth taking.

    --

    --
    make install -not war

  69. Re:just what the world needs by Anonymous Coward · · Score: 0

    Bigger planes, bigger fuel tanks, bigger explosions, and bigger craters. Didn't they learn anything from the Concorde disaster?

    Who the fuck are "they"? And what have "we" learned from the Space Shuttle disaster?

  70. NASA tried that as recently as 1998 ... by Anonymous Coward · · Score: 0

    This may be old news, but here it is anyway:
    http://www.exn.ca/FlightDeck/News/story.cfm?ID=199 81016-61

    As far as I remember the project was canned in 1999.

  71. Re:Fuck France by rsynnott · · Score: 1

    If any of the large powers (UK, US, USSR) had stayed out of it, Germany would likely have won, or at least taken a LOT longer to beat.

    --
    Me (Blog)
  72. More importantly... by gamepro · · Score: 1

    Does it run linux?

  73. Money? by genericacct · · Score: 1

    Wait, are you saying Godzilla has money? This is huge!

    1. provide web-based services to Godzilla, Mothra, et al.
    2. ???
    3. Profit!

  74. Re:Correction by rsynnott · · Score: 1

    There's strong evidence for genetic and hormonal factors in those particular attributes. The Americans would probably live longer, if they ate a vaguely healthy diet, yep.

    --
    Me (Blog)
  75. Re:just what the world needs by Anonymous Coward · · Score: 0

    As I recall the Concorde holds the record of the safest passenger plane. Look it up.

  76. Blackbird anyone? by tsmithnj · · Score: 1

    Wedid this in the 60's. Cool experiment,but as you say completely impractical. Nothing to see here,move along....

  77. How about more leg room! by RexRhino · · Score: 1

    Seriously, do these people even think for a second before flushing billions of taxpayer money down the toilet?

    People regularly take flights with several layovers rather than the much shorter direct flight in order to save a few hundred dollars. Other than a few rich millionares who want to fly from Tokyo to New York to do some shopping on the weekend, the average person isn't really that worried about long airline flights.

    You want to make airline flight better for the consumer? How about spending orders of magnitude less money in order to design ergonomic seats that don't give you leg cramps, or trays that don't spill your food when the person in front of you leans back?

    The supersonic jetliner is 1960s space-age dream bullshit. Yes, we CAN build supersonic passenger jet planes. But we don't have the technology to make it economical. Most airlines are barely profitable and need huge government subsidies using the super-economy Boeing and Airbus jets.

    So you can get from Tokyo to New York in 6 hours instead of 12. But you are still going to have to get to the airport 3 hours early in Tokyo, and wait 3 hours getting you luggage and clearing customs in New York. Those things can be fixed for a fraction of the cost of building a supersonic jet liner, and those thing will benifit everyone, not just the super-rich.

    1. Re:How about more leg room! by Dunbal · · Score: 1

      Seriously, do these people even think for a second before flushing billions of taxpayer money down the toilet?

      No money is going down the toilet. Money is being spent. And that is a GOOD THING as any economist would tell you. You may not agree as to what it is being spent on, but I assure you that the employees of these companies all need houses, all need to pay their bills, and they need the products and services YOU provide, regardless of their field of expertise.

      Oh if it's a choice between a new jet, or 0.0001% more sidewalks, I'll take the jet. You never know when something useful may get invented.

      --
      Seven puppies were harmed during the making of this post.
    2. Re:How about more leg room! by Anonymous Coward · · Score: 1, Insightful

      You're barking up the wrong tree here.

      Good seats exists and can be installed, but that is not up to the airplane manufacturer. The interior design is defined by the BUYER, i.e. the AIRLINE.

      If you want more legroom and proper trays, complain to your airline, not Boeing or Airbus.

      You can have sleeping beds and massage chairs in every seat if you want, but are you willing to pay for it?

      One of the reasons you're getting the lousy seating, is that you (the consumer) are not willing to pay the higher price that better seating brings.

    3. Re:How about more leg room! by vidarh · · Score: 1
      Yes, spending less than $2 million a year over the next three years on research split between them is "flushing billions of taxpayer money down the toilet".

      The supersonic jetliner is 1960s space-age dream bullshit. Yes, we CAN build supersonic passenger jet planes. But we don't have the technology to make it economical.

      Duh. That's why people spend money on research. To get the technology to make them economical.

      I do agree with you that there are other things to fix as well, but I think you severely underestimate the cost.

  78. I'll believe it when I see it by tsotha · · Score: 0
    There's no market for this kind of aircraft, and neither the Japanese nor the Europeans have the money to commit to this kind project as an expression of "national greatness". Big talk is cheap, but did you catch the amount of money they've actually committed? $1.84 million/year for three years, divied up over lots of companies? You can't design the tires for that much.

    Wake me up when somebody actually makes a serious financial committment. Until then it's just talk, especially giving Japan and the major European powers have demographics-related budget problems from here to as far as the eye can see. They're going to have to stretch to pay for pensions under the rosiest scenarios. How can they afford this?

  79. who will be flying... by zogger · · Score: 2, Interesting

    ...on this thing in 2015? What will fuel prices be then? Look at the general state of the airline industry now, then general planetary fuel demands and projected demands. Just china alone is planning on adding 2000 airliners, and over 200 million cars during this upcoming decade, and no telling how many more ships. That's just one nation. *It's the fuel* that needs to be addressed and to have some advanced R&D, they already know how to build supersonic airplanes, most first and second world nations already own bunches of them. You civvie them up, supersize, done, an airliner.

    They may build this thing but it will be beyond even "ludicrous speed" Concorde ticket prices is my best guess on it.

    1. Re:who will be flying... by birdman17 · · Score: 1
      ...on this thing in 2015?

      Good question. All these predictions of what's going to be happening in 2015 can only be made by ignoring the impending reduction or cessation of unsustainable economic and geological activity. By 2015, it's unlikely that anyone but the most wealthy will be able to afford to fly anywhere, or indeed drive a car to the grocery store. Supersonic commercial transport, indeed! Count yourself lucky if it's still possible to even set sail for Japan in 2015, never mind booking steamship passage. In a more likely scenario, most industrialized nations will be at war over the remaining dwindling supplies of oil.

  80. He has a 20" penis, too, and he's the son of God by Anonymous Coward · · Score: 0

    Really? Where did you read that? In the GOP's web page? Looking at a standard IQ test (not even the advanced Mensa stuff), I would expect GWB to fall flat on his face on just about every single question. In fact, he keeps falling flat on his face on national TV when faced with questions that even a lettuce could handle.

    The guy is a moron. Seriously.

    If the world average is 100 and GWB is over 100, then it must be because all his voters' sub-zero scores are pushing the rest of the world's population into the high 150's...

  81. How come France is involved? by ldesegur · · Score: 0, Troll

    France may look very peaceful by denying Bush their support during the Iraq invasion, but the masquerade stops right here. How come a tiny country with rubbish economy (17%+ unemployment) is involved in this type of deal. France is a worldwide provider of weapons to whomever wants to sign the big checks (African and South American wannabe dictators mostly) and Dassault, the infamous jet fighter builder, has been building these jets that kill thousand of innocents by dropping bombs on their villages. Discuting and very hypocrit, don't you think?

    1. Re:How come France is involved? by feandil · · Score: 1

      get your facts right first. they didn't go to war for peaceful reasons but because they had their share of attacks and they didn't want more than necessary. and they knew it wa s a waste of money. they don't have 17% unemployment, just 10, and it's also because the calculation is different than in the US: unemployed people stay registered as such much longer than in other countries, and they don't have 10% of very poor people like america do. also I don't understand how you can talk about them providing weapons to dictators, yes it's true , but no more than US or UK. who is supporting a fundamentalist muslim dictatorship in seudi arabia ? who killed a democratically elected president to replace him with a dictator in chile ? who put in charge a bunch of crazy fundamentalist in afghanistan ? etc. etc. nobody's nice, nobody's innocent, so let's talk of something else.

  82. another nail in the coffin by Anonymous Coward · · Score: 0

    I really don't see anyone addressing the real implication of this partnership. Guys, wake up, we're slowly (but surely) losing our edge in the field of tech and now we just laugh about it. Perhaps it's related to the fact that today's America doesn't reward innovation, but rather being able to put on an expensive suit and spew alot of bull**it to get an eventual IPO. It's really too bad that Engineers have to resort to getting a mindless MBA and abandoning their true craft so as to make a living. Thank you very much Mr. VC

    1. Re:another nail in the coffin by tompaulco · · Score: 1

      The problem really comes down to the fact that companies are unwilling to pay for R&D. Bell Labs used to pour billions into R&D and this made them one of the largest contributors to innovation in the 20th century. Companies that pour huge amounts of money into R&D reap huge long term profits. However, short term profits and short term cash reserves are sacrificed in order to do this. Publicly held companies are at the mercy of us, the public, who demand consistent short term profit and as such, can not really be blamed for cutting R&D budgets. Certainly a bird in the hand is worth two in the bush. But is a bird in the hand better than a hundred in the bush? A thousand? A million? At some point, your expected return from firing randomly into that bush is higher than one bird.
      Unless we as Americans wake up to the necessity of R&D and thinking in the long term, we are going to end up with no innovation and eventually no jobs. Greed is going to make us go broke.

      --
      If you are not allowed to question your government then the government has answered your question.
  83. Re:Fuck France by be-fan · · Score: 2

    Without the USSR, it's very likely that Germany would have won. Without the US, it's possible that Germany would have won, but more likely that Germany would ave taken a lot longer to beat. Japan is another story, but then again, Japan had no designs on continental Europe.

    In any case, your point is well taken. That's precisely why the "we saved your asses" attitude is so stupid. The Russians can say the exact same thing to us ("we saved your asses by decimating Hitler's land forces"). The dick-waving is really kind of silly.

    --
    A deep unwavering belief is a sure sign you're missing something...
  84. Re:just what the world needs by jeet · · Score: 0

    No craters if blast happens in flight. With the volume of fuel that would be required to propel this kind of beast an explosion might mean thousands of pieces, no big pieces will be left to make a crater.

  85. I bet.. by bmantz65 · · Score: 1

    Teleportation is cheaper. ;)

  86. Re:internet has obsoleted the necessity for contac by tsotha · · Score: 2, Informative
    The internet/voip and other communication mediums have obsoleted the necessity for face to face contact and the costs associated with business travel. This is why (at least in the US) airlines are going bankrupt every single year. Only southwest manages to survive, but that's because they are like the walmart of the skies.

    That's just plain wrong. Last year, 2004, saw the greatest number of passenger miles flown in history. The terrorist attacks of 2001 hurt the entire industry, but that only sped up the inevitable. The simple fact is Southwest and similar carriers are eating everyone else's lunch - the large incumbent carriers are saddled with inefficient systems and expensive union contracts, so they just can't compete.

  87. Yes, they were loud by tkrotchko · · Score: 2, Informative

    I remember in the 80's and early 90's when they would regularly fly in and out of Dulles airport. I lived between DC and Baltimore and you could hear those things coming for minutes before they got there and minutes after they left. It was very distinctive.

    The only thing louder is/was when military fighter craft were patrolling right on and after 9/11.

    The Concorde was *loud*.

    --
    You were mistaken. Which is odd, since memory shouldn't be a problem for you
    1. Re:Yes, they were loud by Anonymous Coward · · Score: 0

      Living next to a B1 Bomber base, I could care less.

      I can distinctly tell the difference between thunder, a fighter, or a B1 on full afterburners.

    2. Re:Yes, they were loud by Anonymous Coward · · Score: 0

      For obscene engine noise, the Vickers VC10 with it's four Rolls Royce Conway bypass engines takes the cake.

      As loud or louder than Concorde at takeoff.

      VC10s are still in use by the British RAF who don't have to give a shit about fuel economny or noise.

    3. Re:Yes, they were loud by tkrotchko · · Score: 1

      yeah, no doubt those military craft were loud.

      What I remember about the concorde though was that there was a resonance that you could just hear. Its not that it was loud (it was), its that it had the right pitch that it would make its presence felt for a long time.

      It wasn't annoying (an FA-18 flying overhead is annoyingly loud), its just that it was there and couldn't be ignored.

      --
      You were mistaken. Which is odd, since memory shouldn't be a problem for you
  88. Dude, by Anonymous Coward · · Score: 0

    ...burn a fatty or somethin', willya? I hate that crap as much as the next guy. But ya gotta remember: the reason people commit these types of idiotic spelling and grammar errors is because THEY DON'T CARE!!

    I'm pretty sure correcting them doesn't change this. :)

  89. Japanese-France alliance ain't nothing new. by zurtle · · Score: 1
    France and Japan already has a deal about 'disposing' nuclear waste. Anyone who lives in NZ/Australia would know because there's a shipment of plutonium waste through the Tasman Sea every frew years between France and Japan.

    This "new" partnership is a simple extension of that and probably will extend further as time goes on.

    PS Grammar trolls should ignore the "ain't nothing"... I know.

    --
    Couldn't stand the weather
  90. Thank the FAA. by Anonymous Coward · · Score: 0

    Forgive my complete lack of aircraft knowledge but does the aircraft industry in the US do much innovation on airplane designs?

    Nope. The FAA banned innovation years ago. Only aircraft of 40-year-old "already proven" designs are allowed. To allow any innovation, some FAA inspector would have to risk signing his name on a stack of paperwork to allow it, and none of them would every dare put their butt on the line for that.

  91. Not lawsuits... by Anonymous Coward · · Score: 0

    I don't think that its specifically lawsuits. I think the bar has been raised in a couple of areas:

    1) certainly fear of liability, but only in a general sense

    2) After WWII (and remember, the jets mentioned were developed right after WWII) Aviation was still considered pretty new, so people were willing to be a little bit more "far out" and daring with their designs

    3) Investment. Because airplanes are expected to be better in every respect than the last generation, they cost a whole lot more to design and build. And so you can't take risks like you used to...

    4) ...particularly since air travel is somewhat less subsidized than it had been before about 1975-ish. The carriers don't think they'll be replacing aircraft for 4 decades; a far cry from the 60's and previous when aircraft would be replaced every 10 years.

  92. Re:Correction by tsotha · · Score: 1

    It's funny you should say that. When my sister went to Japan on a business she related how her colleagues ran from place to place and were generally thinner and in much better cardio-vascular shape than their American counterparts. In fact, she said, they might live longer if not for the (large) amount they drank and the (small) amount they slept.

  93. Little people by HermanAB · · Score: 2, Funny

    in both countries - gonna be cramped - only pillows on the floor for seats and paper bulkheads... ;-)

    --
    Oh well, what the hell...
    1. Re:Little people by Anonymous Coward · · Score: 0

      Your knowledge seems utterly lacking when it comes to the size of French people - maybe you have it mixed up with the US? The French average height is taller than most White Americans :) (I'm not French, Thank God).

    2. Re:Little people by rvega · · Score: 2, Informative

      According to Wikipedia, the French are taller, on average, than Americans (67.15" vs. 66.85", assuming a 50/50 male/female split). You're right about the Japanese, though: At 5'9", I never felt like a big person until I spent some time on Tokyo trains. I never felt that way in France.

      For bigger planes, we'd be better off having them designed by the Dutch. Whatever happened to Fokker, anyway?

  94. Memories of the Concorde by Beatlebum · · Score: 5, Informative

    I hope the project is successful, however, if it doesn't get buy-in from the beginning it could suffer the same fate as Concorde. Although Concorde was a technical marvel, the U.S. did everything it could to scuttle the project, for example, its flight certificate was delayed by the FAA until it was sure the project was busted. The premise of Concorde was fast trans-atlantic flight, but its first scheduled route was Heathrow to Bahrain because countries followed the U.S. and refused flight certificates. By the time the U.S. did grant a heavily restricted certification the lack of orders had made continued manufacture untenable. It's quite ironic that the U.S. refused certification on environmental grounds.

    I'm sure there will be the usual Concorde counter-arguments posted here, some of them are true. It's true that it was a fuel hog and it's true that it was noisy. But if 500 were built instead of just 16 supersonic flight would have become much cheaper. With only 16 all parts were custom built and very expensive. Heck the Concorde has more in common with the SR-71 than a 737. It boggles the mind to think that it cruised faster than an F-18's top speed.

    My father worked on the project from the beginning, for those interested here's a link to a couple of photos he took when Concorde 002 made its maiden flight-

    http://latte.com/gallery/Concorde-002-First-Flight

    1. Re:Memories of the Concorde by gatkinso · · Score: 1

      Concorde always flew "clean" i.e no external stores.

      Many jet fighters could exceed Concorde's speed in such a configuration. Notable examples are the B-58 Hustler and the A-5 Vigilante.

      --
      I am very small, utmostly microscopic.
    2. Re:Memories of the Concorde by amabbi · · Score: 1
      Although Concorde was a technical marvel, the U.S. did everything it could to scuttle the project, for example, its flight certificate was delayed by the FAA until it was sure the project was busted.

      What? The Concorde operated for nearly 30 years. How did the US "bust" the project?

      As convenient as it would be to blame the US for all of the world's problems, the commercial failure of the Concorde had very little to do with US lawmakers. The oil crisis of the 1970s, combined with the superior operating economics of larger, slower jets like the 747, led to the realization that supersonic flight at the time was not viable.

    3. Re:Memories of the Concorde by Beatlebum · · Score: 1

      Concorde first flew in the late 60's. It's first commercial flight was 1976. One more time- the delay in getting a U.S. flight certificate resulted in a lack of orders. As I explained the first time around (and you missed), the aircraft was built to fly trans-Atlantic, the U.S. stopped this happening at first (hence the Bahrain route) and later granted extremely restricted certificates.

      These are the facts.

    4. Re:Memories of the Concorde by amabbi · · Score: 2, Informative
      The first flight of the PROTOTYPE Concorde was in 1969. After test flights, modifications were made to the design. The rollout of the first PRODUCTION version of the Concorde was January 31, 1975. This, incidentally, was the aircraft that crashed in 2000.

      Thus, your assertion that there was a 6+ year delay due to US certification issues is warrantless. THIS IS FACT.

      Furthermore, once the US did certify Concorde flights in 1976 and 77, why did the airlines then order the aircraft? Because it was too expensive to operate, and used far too much fuel at a time when fuel was scarce due to the Arab oil embargo.

  95. Sit down, child, and learn how the world works by Anonymous Coward · · Score: 0

    Spain sent a hospital ship and a peace-keeping force. They did not participate in the invasion. Poland sent a bio-containment team, IIRC. They did not participate in the invasion, either. Italy did send some soldiers, I think, but again, they did not participate in the invasion, they only handled logistics and, later, peacekeeping.

    But the thing is, even in those countries, more than 80% of the population was against participating in any way. Their governments were effectively bribed by a few multinational corporations, who stood to profit from the war, via the US military and government. The same goes for Turkey, BTW (had to pay them just so they let the tanks cross their territory).

    Most of the money being made by Halliburton, United Defense, etc., is coming straight from the American taxpayers' pockets, though (and going straight into Swiss and Saudi bank accounts). The Saudis have been investing in Dubya for a long time, and now they're getting their money back... at our expense.

  96. Wrong by Rui+del-Negro · · Score: 1

    Looks like you've been watching Fox News. Only three countries participated in the invasion: USA, England and Australia. Lots of other countries sent peace-keeping forces (police and military) later, but only those three took part in the invasion.

    BTW, most of the "oil for food" money went to the USA. Look it up; the documents are actually in the public domain.

  97. I hope they watch the industry. by supabeast! · · Score: 1

    Here's to hoping that this time around they don't make supersonic travel a $5000 luxury like the Concord. Perhaps if supersonic travel is made affordable it might catch on this time around.

  98. from the deep-thought dept. by dmitriy · · Score: 2, Insightful

    The whole world treats the US as damage and goes around it.
    US treats the ROW(1) as damage and goes around it...
    Sounds more true to me.
    (1) ROW: Rest Of World

  99. Ozone hole, Noise, Fuel Economy by Anonymous Coward · · Score: 1, Interesting

    Dan Goldin killed the son of SST program at NASA when Boeing declined to build one. There were three outstanding problems.

    1. Sonic Boom severely restricts the number of feasible routes. Even with the most boom friendly design, the plane has to fly less than Mach 1.4 to avoid serious overpressures on land.

    2. A supersonic aircraft needs to fly at around 50,000 feet where it outputs gases which severely deplete the ozone layer. It puts harmful exhaust gases exactly where they do the most damage. This environmental problem has not been solved.

    3. When the son of SST program was killed, profitable airlines were running $0.07 to $0.10 per seat/mile. At son of SST never came close to this. With the increase in the price of fuel (and lower labor and finance costs), the economic disadvantages to Mach 2+ would be even more dramatic.

    1. Re:Ozone hole, Noise, Fuel Economy by Viol8 · · Score: 1

      Lets just hope for the enviroments sake that this aircraft never gets built. We're fucking up the atmosphere enough as it is with the normal aircraft. The last thing the world needs right now is another supersonic fuel sucking CO2 spewing white elephant that allows the rich to get to a destination a few hours quicker.

  100. Re:"Premium login"?? by goofballs · · Score: 1

    the us is doing this type of research as well, and are much further advanced than the japanese.

    http://www.darpa.mil/tto/programs/hyfly.html

  101. In further news... by saleenS281 · · Score: 1

    In further news today, the US has made a press release:

    "China you have our blessing, invade those bastards, it's not like the surrender queens are going to defend them."

    1. Re:In further news... by Anonymous Coward · · Score: 0

      hummm ... when did france last surrender ? (not in irak AFAIK)

  102. LOL. by Anonymous Coward · · Score: 0

    While I do find that video amusing, I think most people rush to judgement too quickly. I'm not saying he isn't stupid; it is quite possible that he is. All I am saying is that just because you don't have a gift for speaking does not mean you are stupid.

    I bet the Bush camp LOVES all us liberals talking about how stupid he is; it takes attention away from the real issues and takes weight away from the real arguments.

  103. Re:internet has obsoleted the necessity for contac by bmrh · · Score: 1

    Clearly you live in a fantasy land and have never a) had any relatives, b) had any friends, and c) done any work in a team of more than 3 people.

    Either that, or the post is a troll.... ;-)

    --
    -- Brendan Hills
  104. Re:I guess they didn't lose enough $ the first tim by sekicho · · Score: 1

    Japan is great at building really cool, really expensive, and totally economically useless stuff with government support. Exhibit A: Kansai Airport. I'm sure the same can be said of France, or just about any country with money, but Japan leads the pack in the ridiculous-yet-cool-public-spending department.

  105. Supersonic Cost by wasted · · Score: 1

    I believe the FAA regulations involve creating the sonic boom. It would be hard to operate in controlled airspace (about 18,000 feet to 60,000 feet) at a supersonic speed due to conflicting traffic, boom or not, but above 60,000, it may be okay, provided that it could be done without the boom.

    I had to do a paper (upper level undergraduate) about the costs and benefist of supersonic aircraft. From what I remember, the costs of constructing a supersonic aircraft were about 3.3 times the cost of a subsonic aircraft with the same load and range capabilities. When you consider the finance charges and risk involved, it may not be financially feasible for many carriers to invest in supersonic travel if the costs are 3.3 times as high.

  106. Re:just what the world needs by eraserewind · · Score: 1

    More people travel take more individual trips on Britains roads than take than there are flights , so I don't see that you can compare the two so easily.

  107. It's about the tech by Bullfish · · Score: 1

    Really, building this thing is not about the market. They'll build a few. The flights will sell out for the short term, then the novelty will wear off.

    Really it's the same reason the Chinese are scratching at space, the Europeans are scanning Saturn, and the US is poking about Mars. The act of doing these things advances your society's science and technology.

  108. Re:internet has obsoleted the necessity for contac by Lord+Omlette · · Score: 1

    It was my understanding that southwest treats its employees *much* better than walmart does...

    --
    [o]_O
  109. Re:just what the world needs by ChipMonk · · Score: 1

    Yeah, I know, the cause wasn't a problem with the Concorde itself, it was an accident involving another aircraft. The concern I have is the sheer number of people on board, and the severity of any crash. It's like driving 45mph vs. 75mph. Any accident at 75mph will have more severe consequences than a similar accident at 45mph. Heaven forbid that a school bus go off the road at 75mph.

  110. Re: Wars by Anonymous Coward · · Score: 0

    Strange. French peole conquered Europe twice (Napoleon and Charlemagne), and people are still talking about their losses... Stop watching Fox News kid!

  111. Re:Fuck France by maceilean · · Score: 1

    I thought we were the revolting colonials.

  112. France + Japan by baomike · · Score: 1

    This seem almost like an echo of the Renault/Nissan
    deal. They do seem to be talking to one another.

  113. Re:Correction by Grayden · · Score: 1

    That'd be 180 Canadian passengers.

    Can we PLEASE use standard units already?!?

  114. FAA regulations... Can be changed by Firethorn · · Score: 1

    I've seen alot of comments about the FAA not allowing Mach travel over the land.

    Doesn't anybody think that with enough effort, that the regulations could be changed, especially if some company manages a 'quiet' mach+ plane?

    And lets face it. As long as you're only flying within the states, we could save more time just streamlining the 'security checkpoint' system.

    Flying anymore just isn't worth it for me anymore unless I'm traveling at least half of the continental USA.

    --
    I don't read AC A human right
  115. NOT a law of Physics! by XNormal · · Score: 4, Interesting

    It's NOT a law of physics that an object moving through a fluid faster than the speed of sound must generate a shock wave. The Navier-Stokes do have solutions at supersonic speed that do not involve a discontinuity in pressure (shock wave).

    A supersonic bullet not generating a sonic boom was designed in the 60s so if a sniper misses the target on the first attempt the target will not get a warning (the noise of a bullet is supersonic boom. Muzzle noise is far away and supposedly masked by a silencer). The bullet has a cylindrical shape with completely straight outer edge and internally it has a carefully designed inlet coupled to a carefully designed expansion nozzle.

    It doesn't generate any aerodynamic lift. Generating lift would require breaking the symmetry and that, of course, would break the careful arrangement that eliminates the shockwave. An airplane must generate lift and there it would seem that this effect cannot be used. However, an airplane also has an engine. If the engine's energy is added to the equasions there can be solutions that generate lift and still have no pressure discontinuities. These mathematical solutions are proven to exist, but haven't been found, yet. If they are found, there is no guarantee that thay can be made into a practical airplane - but there's NO law of physics saying it's impossible!

    Note that the shockwave CAN be reduced by orders of magnitude by careful design down to the point where it's probably not a problem. Here I am talking about totally eliminating it in the mathematical sense.

    --
    Stop worrying about the risks of nuclear power and start worrying about the risks of not using nuclear power.
    1. Re:NOT a law of Physics! by krysith · · Score: 1

      Thank you, that was the most interesting post I've seen on /. in quite a while. I'm sorry I don't have mod points today.

  116. Re:Fuck France by Anonymous Coward · · Score: 0

    Comparing America now to revolutionary America is so utterly nonsensical as to be more than absurd, it is sheer lunacy. The only thing in common between the two is the ground, and only a tiny piece on the north-eastern coast at that.

  117. Re:Fuck France by obarthelemy · · Score: 1

    mmmmmm, definitely NOT the same cheese though. The only orange one we have is actually old Dutch gouda (I think) and is quite evil ;-)

    --
    The Cloud - because you don't care if your apps and data are up in the air.
  118. Re:internet has obsoleted the necessity for contac by Anonymous Coward · · Score: 0

    Oh man, why did I spent all that money on a ski trip to Austria when I could have just watched the video on my pc?

  119. Re:Fuck France by Anonymous Coward · · Score: 0

    They _call_ it cheese, but it tastes like ... how do I come up with a witty description of the taste of something that doesn't even have a taste? Forget McDonalds, Microsoft and militaristic Imperialism. The worst thing about America is the cheese.

  120. Close by ishmaelflood · · Score: 0, Flamebait

    Actually Seppo is the preferred term.

    Seppo is short for septic, short for septic tank, rhymes with Yank.

    So I hope that improves Australian-American relations.

    And you are right, 90% of the world does not know, or indeed care, about which USAns should be called Yanks.

  121. Re:Engine Noise? and death screams by Anonymous Coward · · Score: 0

    >blast down through the Pacific, Kamchatka

    You will certainly get blasted down if you try to fly right over Kamchatka (I mean KAL-007). Russkies guard the motherland very viciously.

  122. A rare example of backward progress by crispenigl · · Score: 1

    Isn't anyone bothered or surprised by the fact that the loss of supersonic flight [ala concorde] represented a backwards step in progress?

    They had the concorde for such a long time and after its retirement nothing newer, faster and better was ready.

    I can't think of another example of backward progress.

    1. Re:A rare example of backward progress by Anonymous Coward · · Score: 0

      Saturn V. No heavy-lift launchers with comparable performance available now...

    2. Re:A rare example of backward progress by birdman17 · · Score: 1
      I can't think of another example of backward progress.

      Have no fear, there will be more examples soon. All this "progress" we've experienced so far is based on oil, and cheap plentiful oil at that. What do you think is going to happen when oil more or less overnight stops being cheap and plentiful? I predict a whole lot of backward progress.

      If you thought the loss of supersonic air travel was a backward step, wait until you see what the loss of subsonic air travel will look like.

    3. Re:A rare example of backward progress by crispenigl · · Score: 1

      If you thought the loss of supersonic air travel was a backward step, wait until you see what the loss of subsonic air travel will look like.


      Damm good point, you just depressed me :)

    4. Re:A rare example of backward progress by birdman17 · · Score: 1
      Damm good point, you just depressed me :)

      Yeah, and that's not even the really depressing part. The really depressing part is when you realize that the entire infrastructure for growing and shipping food for 6 billion people on this planet is also critically dependent on that cheap oil.

      Progress as we've come to know it is no longer feasible. Even the status quo is no longer feasible. Regression is inevitable. The only question is how far, and how fast - and how many people will have to starve to death in the process. (And those of us in the colder climates have the additional worry of freezing to death while we're starving.)

      How's that for depressing?

    5. Re:A rare example of backward progress by tompaulco · · Score: 1

      Cheer up. We have a 100+ year supply of coal, even factoring in the current growth of energy use. Unfortunately, coal is useless in airplanes, but probably what we need to do more or less immediately is to start running boats, electric plants and other things that CAN burn it on coal. And use Oil for airplanes and other things. Also, there is always nuclear energy, which I'm sure the treehuggers will take more kindly too when the oil burning electric plant shuts down, and they can no longer run their espresso machines.

      --
      If you are not allowed to question your government then the government has answered your question.
    6. Re:A rare example of backward progress by birdman17 · · Score: 1
      Cheer up. We have a 100+ year supply of coal

      That is true, and coal can be substituted in a number of areas where we currently use oil. Of course coal has its own problems, not least of which is that it is more than a little radioactive. But I've heard interesting things about IGCC power plants (integrated gasification combined cycle), which seem to be a good way to use coal cleanly to produce electricity at fairly high efficiencies. And there is certainly a lot of room to reduce our current energy usage without turning into a third world country right away. One thing is for sure: interesting times lie ahead.

      And as you say, coal is not so good for aircraft - nor is nuclear power. One way or the other, I think air travel is soon going to be a thing of the past.

  123. Osama thinks supersonic airliners are cool by Anonymous Coward · · Score: 0

    >F-22 has engines that go supersonic w/o burners

    This is called "supercruise" and it is only good up to 1.6 Mach, but won't help to M2 or M3.

    One more problem with supersonic jetliners is terrorism. If the emir's warriors got hold of an M2+ plane, it would be virtually impossible to stop, unlike subsonic planes, as fighter jets couldn't catch it in time. And when it hits...

    I think Concorde was scrapped not for the accident, but mainly because of fears that terrorists will use it as a giant APFSDS round to penetrate hardened targets. A single Concorde impacting at top speed (1.1M at low altitude or twice of those B767s) would have probably gone right through BOTH the north and south towers of WTC!

    1. Re:Osama thinks supersonic airliners are cool by dkf · · Score: 1
      I think Concorde was scrapped not for the accident, but mainly because of fears that terrorists will use it as a giant APFSDS round to penetrate hardened targets.

      I disagree. It was clear when the crash happened in 2000 that Concorde had problems. When compounded with the fact that it was just not making money and sucked environmentally, the writing was just on the wall in the post 9/11 air-travel industry. Given that, I think there's still potential room in the industry for supersonic air-travel if someone can get the details right. (As usual, the devil really is in the details.)
      --
      "Little does he know, but there is no 'I' in 'Idiot'!"
    2. Re:Osama thinks supersonic airliners are cool by tompaulco · · Score: 1

      One more problem with supersonic jetliners is terrorism. If the emir's warriors got hold of an M2+ plane, it would be virtually impossible to stop, unlike subsonic planes, as fighter jets couldn't catch it in time. And when it hits...
      Fighter jets would not be able to catch a conventional jet plane in time either. They didn't even catch up to a Cessna 172 until it was nearly to the center of the ADIZ around D.C.
      A single Concorde impacting at top speed (1.1M at low altitude or twice of those B767s) would have probably gone right through BOTH the north and south towers of WTC!
      Which, as it turns out, would have been better for everybody, because at least the towers would still be standing.

      --
      If you are not allowed to question your government then the government has answered your question.
  124. the pilot moved off line by Anonymous Coward · · Score: 0

    because whilst taking off the French president's plane crossed the runway in front of him. The president's plane would have cleared the runway in time but concorde was aiming at the back of it.

  125. Re:Fuck France by pommiekiwifruit · · Score: 2

    But under EU regulations US cheese must be labelled "wallpaper paste".

  126. Re:I guess they didn't lose enough $ the first tim by Anonymous Coward · · Score: 0

    >It's a bit like comparing the Sputnik launcher
    >to a modern sattilite launcher.

    Just for the record R-7 (a.k.a. the Sputnik booster) basic design is still being used as the main workhorse of russian spacelaunch business after ~ 50 years and noone seems to be bothered with such lack of progress...

    In fact, one Progress per quarter-year is still being launched atop an R7-derived Soyuz booster to feed the ISS crew up there.

    The last (?) R7 variant will be the modernized Onyega booster, which is still on the design table and will start to fly circa 2010 hopefully with the "Kliper" ISS crew capsule on top of it. Guess R-7 will still be around in 2150?

    R7 = german derived engines + lotsa kerozene + Korolev.

  127. Re:Fuck France by Anonymous Coward · · Score: 0

    Umm...

    If the UK, USSR and US had stayed out of it, the Germans might have won? They DID win!

    At the beginning of the war the US was out of it (and at least partially sympathetic to the German side, which it expected to be the winning side). The USSR was also on the German side. The Germans obtained all their war goals, with only the UK left opposing them, and not actively able to do much at that time. At that stage the Germans had won.

    It was only a minor strategic error which caused Hitler to lose the war after that. The Germans could have allied with the US against the USSR - they could have sold this by helping the US to dispose of its two biggest world competitors (the UK and the USSR) in short order.

    It's politically incorrect to mention it, but I suspect that this was being strongly considered at the time. After all, with the existing technology it was inconceivable that Germany could ever be a threat to the US - it had nothing like the UK's sea power.

    The US would have expected Germany to look inward to Europe while the US maintained its Pacific and South American interests.

  128. Re:I guess they didn't lose enough $ the first tim by Anonymous Coward · · Score: 0

    To use Kansai Airport, is better than use Narita-Haneda to connect International-Local flies. I don't see that useless.

    But Japan still been the jewell of the crown building useless things.

  129. Re:Fuck France by identity0 · · Score: 1

    And why is it that between Japan and France, it's France's record in WW2 that gets criticised? It seems backwards to me...

    (I am from Japan, btw)

    To keep this on topic, I will say that I will look forward to when I can fly to Japan in a few hours instead of half a day.

  130. Re:MODERATION ABUSE by Anonymous Coward · · Score: 0

    Hi!

    No, it was making fun of you as a fat fuck.

    The bright side for the rest of the world is that you'll probably die quicker. Your corpulence has us all laughing, especially in Europe where women's behinds don't require two bar stools.

    Cheers,
    GNU/Wolfgang

  131. It's doomed. by Pig+Hogger · · Score: 1
    Like it's predecessor, it won't be allowed to land in the USA for some kind of bullshit reason, thanks to the "Not Invented Here" syndrome that's so popular with yankees.

    And when you're not allowed to land in the USA, you're just as doomed as Concorde was.

    It won't attract the bullshit-oriented USA airlines (they're bankrupt anyways, so they won't be able to afford it - and there is no way the US government will allow them to buy even just one after all the billions they poured in the ailing airlines after 9/11) so all it will do is fly the Paris_Tokyo route if it's ever built.

    1. Re:It's doomed. by tompaulco · · Score: 1

      Right. Just like we prohibit our airlines from buying Airbus, Embraer, Bombardier, Saab, etc, and won't let those planes land here.
      I mean really, if we wanted to help our struggling airplane manufacturers, wouldn't it make more sense to stop the manufacturers that sell hundreds of airframes, rather than the one that will sell maybe 50 if they're lucky?

      --
      If you are not allowed to question your government then the government has answered your question.
  132. Re:Correction by MochaMan · · Score: 1

    You Westerners are strange that way.

    Nice... let's take the attitudes of a smallish fraction of a cultural group and make sweeping generalizations about all "westerners". For someone who's attempting to make fun of people who're entrenched in their cultural beliefs, you could stand to shed a bit of bias yourself.

  133. Just Another Jobs Program by Anonymous Coward · · Score: 0

    ... for a couple of countries with severe unemployment issues.

    Move along. Nothing to see here.

  134. Re:Fuck France by Pig+Hogger · · Score: 1
    It was only a minor strategic error which caused Hitler to lose the war after that. The Germans could have allied with the US against the USSR - they could have sold this by helping the US to dispose of its two biggest world competitors (the UK and the USSR) in short order.
    Hitler DID want to ally with U.K. and the U.S.
  135. Re:Cheese by Anonymous Coward · · Score: 0

    You know, the Americans eat more cheese than the French.

    How? There isn't any cheese in America. Only little slices of bouncy yellow plastic.

  136. Re:Fuck France by smchris · · Score: 1

    Maybe if he relaxed at "ye old inn to supp upon oxen" and meditated a bit on whether we share _anything_ with France he would realize how utterly stupid the "Freedom Fries" movement was at multiple levels. Or he's just pig ignorant.

    I've gotten pretty irritated at "Old Europe" bashing. It is so typical of an immature bully attitude in the U.S. Precisely because it is "old" Europe, if we had a bit of civilization and historical awareness, what could France alone with it's misadventures in Vietnam and Algeria have taught us _not_ to do? The U.S. is acting like a stupid bratty child in front of an adult who understands from their own youth that being an asshole doesn't turn out well and it's embarrassing to be a part of.

    Anyway, as long as a flying Citreon that serves raw fish isn't the end product, I'm excited that this collaboration could produce a utterly cool plane.

  137. They're partying at Boeing! by Ancient_Hacker · · Score: 1

    Oh yes, Japan and France, go to it! Never mind the laws of Physics! All those equations with squares, cubes and quad powers in them-- ignore them. All the experience with the Concorde, The Blackbird, the Valkrie, the B-58-- just ignore how expensive it is to build and maintain an airplane made out of Titanium. Also ignore how much fuel it takes to push a big plane through the air at that speed, with the air resistance going up as the fourth power of the speed. And how you're carrying most of the fuel halfway around the world, at air-mail rates. And doing so over an Artic route, with not a chance at a safe landing or a prompt rescue. That's JUST what the US air industry needs, having you go off on some hopeless quest.

  138. Re:Fuck France by Himring · · Score: 1

    How interesting. You Yanks didn't seem to mind during the Revolutionary War.

    I'm supposing you mean we didn't mind a cozy relationship with France circa late 18th century/early 19th century.

    Touche [no pun]

    However, that was partly around the time they were cool, actually able to fight wars, as they were lead by this rather short, yet effective, Corsican ....

    --
    "All great things are simple & expressed in a single word: freedom, justice, honor, duty, mercy, hope." --Churchill
  139. Loudest Thing I Ever Heard by reallocate · · Score: 1

    NASA's done some research on reducing sonic booms, but large aircraft can make a lot of other noise. I've lived within the final approach pattern of both a major American Air Force base and Heathrow. The loudest thing the Air Force base put up were fully loaded water-injected KC-135''s. They were plenty loud on take off, louder than C-5's and B-52's and C-141's. Loud enough to obliterate any phone call.

    Concorde's leaving Heathrow were an order of magnitude louder.

    I'm all for affordable SST's, but the next one really needs to be quieter.

    --
    -- Slashdot: When Public Access TV Says "No"
    1. Re:Loudest Thing I Ever Heard by tompaulco · · Score: 1

      I live next to Tinker AFB, and our KC-135s are loud, but nowhere near as loud as the B-52s that occasionally take off.
      I never got to hear a Concorde, though.

      --
      If you are not allowed to question your government then the government has answered your question.
    2. Re:Loudest Thing I Ever Heard by reallocate · · Score: 1

      I once booked into a motel near Fort Worth, late in the evening after driving for hours. Turned out it was across the road from the end of a runway on some Air Force bae (can't recall which one). Someone was uup dpo9ng touch-and-goes all night. So was I.

      I don't know the decimal level for the Concorde's take off run (I suppose it exists on the net someplace). However, I lived about 10 miles west of Heathrow. One of the Concorde's patterns on take off took it over my house at an altitude low enough to see that the gear was still down. Some years earlier, I'd lived about 5 miles from the flightline at Wright-Patt, when it still had B-52's stationed there. The loaded 135 tankers made an incredible racket on takeoff, but they couldn't compare with the Concorde. (At the time, I knew a 135 pilot who said the really loud ones were the result of injecting water spray into the combustion process to boost thrust on launch.)

      --
      -- Slashdot: When Public Access TV Says "No"
    3. Re:Loudest Thing I Ever Heard by tompaulco · · Score: 1

      (At the time, I knew a 135 pilot who said the really loud ones were the result of injecting water spray into the combustion process to boost thrust on launch.)
      That may be true. I'm not sure if I have heard one with water injection or not.
      Interestingly, I know that the huge amount of water they spray into the launch pit for the Space Shuttle is to dampen sound, whereas I thought it had something to do with keeping things cool. Interesting that changing when you dump in the water has the opposite effect on the noise level.

      --
      If you are not allowed to question your government then the government has answered your question.
  140. Wannabe by 4A6F656C · · Score: 1

    Did anyone else read "Yoshio Watanabe" as "Yoshio Wannabe"?!? :)

  141. Or 200 French.... by gatkinso · · Score: 1

    ...assuming they don't throw their arms up and surrender to the stewardesses... then it will only carry 60.

    --
    I am very small, utmostly microscopic.
  142. How do oui say? by digital.prion · · Score: 1

    Yes!
    But, at that time we were Overpaid, Oversexed and Over there!


    Fun Factiod: 33% of all babies born in France after 1945 have dual citizenship despite have two French parents.

    --
    Smile.
  143. Complete nonsense by Anonymous Coward · · Score: 0

    Concorde was allowed to land in the US and did so in NYC on a daily basis. If this successor is build, it will also be allowed to land in the US. It will not, however, be allowed to create a sonic boom over the US or any other first world nation.

  144. What about the fuel? by beforewisdom · · Score: 1

    It is my understanding that the concord did not fail because of technology, but because of fuel costs.

    Airlines just found it too expensive to operate.

    I am guessing since two groups of smart people want to start this up that they have an idea around this problem so that a new generation of supersonic passenger jets don't sit on the ground.

  145. Re:Correction by PhotoGuy · · Score: 1

    I actually talked to an airline pilot who flew in both North America and in Japan, and he indicated that the same model planes are actually configured differently between Japan airlines and North American airlines, to fit more people in, since in general, they do take up less space.

    Whether Japanese people are generally genetically more slight in build (sumo wrestlers excluded), or Americans generally have more overweight people, it is interesting nonetheless. (Or maybe the Japanese are just being more efficient at the expense of comfort.)

    --
    Love many, trust a few, do harm to none.
  146. We don't care by Jimpqfly · · Score: 1

    "Like it's predecessor, it won't be allowed to land in the USA for some kind of bullshit reason, thanks to the "Not Invented Here" syndrome that's so popular with yankees." Nevermind, this new plane will land in Japan (or China ?), americans are not the only ones on earth. For the cost : Concorde didn't cost France money, it showed profit at the end of its story. For the fuel : the article says the new plane will be better... Have you read the text ? At least, we go forward.

  147. Re:just what the world needs by praedictus · · Score: 1

    Actually it WAS a problem with the Concorde. Apparently there were 9 or so other incidences of debris causing damages to the undercarriage including another impact on the fuel tanks, fortunately in that case the tank didn't rupture. One of the motives for the retirement of the Concorde was the cost of correcting this vulnerability.

    --
    Watashi wa chikyubutsurigakusha desu.
  148. Re:Fuck France by Anonymous Coward · · Score: 0

    Hey, Moron, study history.

    The USSR killed roughly 2 million germans in WWII while the allies (mostly US/UK) killed 8 million in Europe and North Africa. Sure the Soviets had 20 million losses in so doing, which is VERY regrettable, but count enemy kills, that shows who did the most damage.

  149. Actual amount of this collaboration a pittance by dmccarty · · Score: 1
    I haven't seen anyone actually mention the amount of this collaboration. IIRC from TFA, it's less than $2 million, which is next to nothing in this kind of research.

    Before everyone gets in a huff over the shift of aviation dominance from the US, consider what France and Japan have actually agreed to: not much. It's a start, and it may or may not pan out. I'd venture to guess that there's a pretty good reason why Boeing isn't pursuing supersonic aircraft. If that reason changes, you can be sure that they'll jump on board for a crack at some supersonic profits.

    --
    Have fun: Join D.N.A. (National Dyslexics Association)
  150. Re:Fuck France by niteguy · · Score: 1

    If we were to bash on any country for their WW2 record, it should be Italy. They lost to France (until ze Germans came in), they lost in Africa (until ze Germans came in), they lost in Greece (until ze Germans came in). Italy didn't win anything in WW2 until they switched sides...

  151. Bravo sir! by Anonymous Coward · · Score: 0

    Well said!

  152. Re:Fuck France by Anonymous Coward · · Score: 0

    And if the apologists today were around back then and made that alliance, I'd be a lampshade right now.

  153. Re: Wars by Anonymous Coward · · Score: 0

    Uh.

    Charlemagne (Or Charles the Great) was no more French than the Gerimino was American. 'America' would have to make a big stretch to claim Gerimino as one of our great leaders (he was, but everyone knows he was not a member of the American nation. He was a Native American, and would probably be indignant at being called an 'American' by what it means today). He may have controller the same space that is France Today, but he spoke a different language, and even made his capital in what is now-and historically-Germany(Aachen).

    Do some reading before making claims, idiot. He was of Germanic extraction.

    Charles the Great is officially on the roles of the 'French Kings' as Charles I simply because the French wants to claim his legacy, not because he was actually French.

    All this is besides the point. If you have to reach back until the year 800 to find an overwhelming 'French' domination of Continental Europe, you prove the issue at hand. Napoleon aside.

  154. 200+ years! by Anonymous Coward · · Score: 0

    someone should have warned us 200 some years ago that we'd still "owe" them this many years later. isn't it telling that when someone bad-mouths france we have to go back almost a quarter of a millenium to find something nice to say.

  155. Re:internet has obsoleted the necessity for contac by Anonymous Coward · · Score: 0

    obsolete is not a verb. stop, now. it makes you sound like an idiot.

  156. Re:Fuck France by Nopal · · Score: 1
    In any case, your point is well taken. That's precisely why the "we saved your asses" attitude is so stupid. The Russians can say the exact same thing to us ("we saved your asses by decimating Hitler's land forces").

    I think that you are confusing accuracy with precision. In any case, both the US and Russia "saved your asses," even if it's to a different degree. In other words, it doesn't matter if it's a Russian or an American saying it since even by your own admission it's still true, and so it's accurate. The satement may not be precise enough (since the statement doesn't elaborate that both USA and Russia "saved your asses"), but it is accurate nonetheless so long as either one or both (Russia, US) say it. It's stupid and lacking in precision, but accurate.

  157. Re:internet has obsoleted the necessity for contac by tompaulco · · Score: 1

    The internet/voip and other communication mediums have obsoleted the necessity for face to face contact and the costs associated with business travel.
    Uh, huh. Why is it that most of the jobs on Dice.com rquire 25% to 100% travel? And why do very few companies allow you to telecommute?

    --
    If you are not allowed to question your government then the government has answered your question.
  158. Descent from 100km by bwcbwc · · Score: 1

    You're assuming that the descent would occur over the US. For transatlantic that would probably be true, but for great circle between Asia and US East coast, the descent could be done over northern Canada (assuming the Canadians didn't object).

    --
    We are the 198 proof..
  159. Re:just what the world needs by tompaulco · · Score: 1

    Actually, they DID correct this vulnerability.

    --
    If you are not allowed to question your government then the government has answered your question.
  160. Re:just what the world needs by praedictus · · Score: 1

    I was aware that one of the fixes was as simple as better tires, which were already available BEFORE the accident, even recommended in light of the earlier instances, but not done due to the greater costs. The plane in question did not have the reinforced tires, but there still remained the question of the vulnerability of the fuel tanks to debris punctures.

    --
    Watashi wa chikyubutsurigakusha desu.
  161. Re:Fuck France by coopex · · Score: 1

    As America, The Book says about the French in warefare: 16-1 pre Napoleon, 1-8 post.

    --
    The road to hell is paved with good intentions.
  162. Re:Fuck France, et Range Aussi Ta Pere by theNAM666 · · Score: 1

    Comment intéressant! Vous grenouilles n'avez pas eu un tel ressentiment contre l'impérialisme renvoyé de nous yankees pendant la deuxième guerre mondiale, non?

    [For the French-impaired, something like: "How interesting! And you frogs didn't resent Yankee imperialism so much during the Second World War, did you?"

    and Range Aussi Ta Pere= Fuck your father as well= once popular French Rap group "RATP," whose initials are the same as the French National Rail company RATP...]

  163. Re:More news here by aCapitalist · · Score: 1

    got karma to burn frogs.....keep it coming surrender monkeys.

  164. Re:Correction by starrsoft · · Score: 1

    Can someone tell me why I was modded redundant when I can't find a single other comment (above mine) that corrects this error? It also hasn't been corrected in the story. I took that survey of /.'s the other day and I responded that the moderation was in important part of /. Prove me right.

    --
    Read my blog: HansMast.com
  165. Truth hurts does it? by ishmaelflood · · Score: 1

    poor old mods

  166. Pearl Harbour is a lot more complex than you think by leonbrooks · · Score: 1

    Read up on it a bit more. The Japanese were pretty much sucked into attacking it, and there are many red flags to say that the Yanks (hi from Oz) knew it was coming at many levels and yet chose to let it happen. Somebody needed a red shirt to wave.

    Not to say that Japan were angels during WW2 or anything, which would be a grossly stupid statement, just that it ain't anywhere near as simple as you make it out to be.

    Forex, American-owned companies were still operating in Axis countries - and producing war materials for them, including munitions and vehicles - right up to the end. Some of the Allied anti-industry bombing was... dreadfully specific. American corporations operated in the USSR right through the Cold War, too.

    --
    Got time? Spend some of it coding or testing
  167. Re:Pearl Harbour is a lot more complex than you th by Keysh · · Score: 1

    Oh, dear. The "Roosevelt knew it was coming and deliberately did nothing" conspiracy argument. I'm afraid it's nowhere near as paranoid as you make it out to be. I suggest you try reading a serious history, like Gordon Prange's At Dawn We Slept, rather than conspiracy-theory nonsense.

    Or read this exchange from the New York Review of Books Letters column, between Gore Vidal (a novelist who dabbles in conspiracy theory) and David Kahn (a serious historian who wrote, among other things, one of the definitive histories of cryptography):

    http://www.nybooks.com/articles/14238

    You could argue that the Japanese were "pushed" into a confrontation with the US, because the US cut off their supply of American oil in July, 1941, in response to Japanese troops moving into French Indochina. But only if you think that continued Japanese military expansion in China and Southeast Asia was somehow inevitable -- or justified.

    The Japanese government could have their halted their expansion, of course; but they decided to continue. In order to do so, they needed access to oil, rubber, and other critical military supplies, so they planned to conquer Indonesia and Malaysia. In order to prevent the US from interfering in this expansion, they planned a series of attacks and invasions to knock out the US presence in the western Pacific and take out the US navy.

    The Japanese were certainly not suckered into attacking Pearl Harbor; they carefully planned it, based in part on the earlier success of the British carrier aircraft in attacking the Italian naval base at Taranto in the Mediterranean (something the US ignored). Japanese military leaders started debating and planning war with the US in mid-1941; they had made the decision for war by the fall.

    The US expected that a Japanese attack would most likely come in the Philippines; in part, they simply didn't think the Japanese capable of something as audacious and difficult as a long-range, carrier-based attack on Hawaii.

    (Leaving aside all this, may I point out that if you are "suckering" someone into attacking you, you do this in order to ambush them when they make the attack, not let them go ahead and destroy most of your fleet?)

    --
    -- Keysh (Peter Erwin)
  168. Obligatory Teen Girl Squad Reference: by Anonymous Coward · · Score: 0

    OBSOLETED!!!!!!!!