Slashdot Mirror


Oh, Your Private Jet Is Just Subsonic?

zerogeewhiz writes "Found this article here at The Sydney Morning Herald . It seems that Bill and his mates need to move a bit quicker these days and for a cool US$80 million, you too can overtake the Concorde on a dash to Harrods for dinner. As described in the article, the main complaint about Concorde is that it can only fly supersonic over water and creates those nasty sonic booms that punch holes in buildings and shatter windows. They reckon they can get rid of these waves by making the plane longer. These are gonna be fast but hideous. 737-700s are suddenly passe as a corporate jet..."

311 comments

  1. Just Get There (tm) by purduephotog · · Score: 0, Funny

    Heard a sonic boom- knocked our dominos game off the table .... Ban Concords :)

    1. Re:Just Get There (tm) by JohnHegarty · · Score: 0

      just sends the birds (the type that live in trees and fly) wild where i live..... well used to when it was flying

    2. Re:Just Get There (tm) by Anonymous Coward · · Score: 0

      That's Concorde, to keep the French happy.

    3. Re:Just Get There (tm) by Anonymous Coward · · Score: 0, Troll

      I don't need a private supersonic jet, I have a very large penis.

    4. Re:Just Get There (tm) by ScottKin · · Score: 0

      Typical post from a /. dork - and he doesn't even have the cohones to use anything but "Anonymous Dink...oops, meant to say Coward".

      Get a freakin' life.

      ScottKin - Penguin-hunter.

      (Yes, I said "Penguin-hunter" - as in "tux", that stupid, dazed-looking mascot for the Linux-ophiles; you dorks can bash Microsoft all day long and do it between breaths, so I believe the addage of "turn-about is fair play" equally applies. If you don't like it, root yourself!)

      --
      I don't give a rat's behind about "karma" here or anywhere else. Don't like what I have to say here? Deal with it!
  2. Why would any Microsoftie need a faster jet? by typical+geek · · Score: 2, Funny

    Everything can be remotely administered, why, just SSH into,

    Ahh, nevermind.

    1. Re:Why would any Microsoftie need a faster jet? by CBravo · · Score: 1

      hey, I wrote that when administrating your head :)

      --
      nosig today
    2. Re:Why would any Microsoftie need a faster jet? by Zachary+Kessin · · Score: 2
      Well maybe because they are not useing it to admin a box. But to have a meeting.


      BTW The fastest current private Jet is the Cessna Citation X, it cruises at Mach 0.92. It is infact the fastest civilian jet except the concorde.
      Cessna aircraft company

      --
      Erlang Developer and podcaster
    3. Re:Why would any Microsoftie need a faster jet? by cjsnell · · Score: 1

      Obviously, you've never used Cygwin. OpenSSH works great on my Win2k box.

    4. Re:Why would any Microsoftie need a faster jet? by ptomblin · · Score: 1

      It is infact the fastest civilian jet except the concorde.

      Even more impressive: The Citation X is the fastest aircraft ever designed and built without government money.

      --
      The next Cmdr Taco duplicate will be ready soon, but subscribers can beat the rush and see it early!
    5. Re:Why would any Microsoftie need a faster jet? by susano_otter · · Score: 2


      Well maybe because they are not useing it to admin a box. But to have a meeting.



      Clearly you haven't been paying attention to The Great Katz. Just use email.



      Or the telephone.

      --

      Any sufficiently well-organized community is indistinguishable from Government.

    6. Re:Why would any Microsoftie need a faster jet? by netsharc · · Score: 0

      Pfft, who needs SSH when you have Code Red? It even goes out and does administering of other computers for you. :p

      --
      What time is it/will be over there? Check with my iPhone app!
    7. Re:Why would any Microsoftie need a faster jet? by Matthaeus · · Score: 1

      Now why don't they give cars names like "Citation X"? Oh...nevermind.

    8. Re:Why would any Microsoftie need a faster jet? by Zeinfeld · · Score: 2
      Even more impressive: The Citation X is the fastest aircraft ever designed and built without government money

      I'll bet that 90% of the people who buy one made their money out of fat corporate welfare handouts.

      --
      Looking for an Information Security student project suggestion?
      Try http://dotcrimeManifesto.com/
  3. "Bill and his mates"? by barzok · · Score: 5, Insightful

    There's no mention of any customer at all. Are we taking potshots at MS for absolutely no reason now? There's no connection here at all.

    1. Re:"Bill and his mates"? by b0r1s · · Score: 1

      5 digit UID and you're surprised by that? c'mon now.

      --
      Mooniacs for iOS and Android
    2. Re:"Bill and his mates"? by kilgore_47 · · Score: 1

      yea the price is wrong too... the article says $160m not $80m.

      --
      ___
      The way to see by faith is to shut the eye of reason. --Ben Franklin
    3. Re:"Bill and his mates"? by ComaVN · · Score: 2, Funny

      That's a rethorical question, right? This is Slashdot, ofcourse they're taking potshots at MS for absolutely no reason.

      --
      Be wary of any facts that confirm your opinion.
    4. Re:"Bill and his mates"? by kilgore_47 · · Score: 1

      There's no mention of any customer at all. Are we taking potshots at MS for absolutely no reason now? There's no connection here at all.

      Or are YOU assuming 'Bill' refers to Bill Gates? There is no mention of MS in the /. post either!

      --
      ___
      The way to see by faith is to shut the eye of reason. --Ben Franklin
    5. Re:"Bill and his mates"? by bill0r · · Score: 0

      well we are assuming that gates will need to of them, one for him and the second for his big ass head :)

    6. Re:"Bill and his mates"? by Monte · · Score: 1

      Or are YOU assuming 'Bill' refers to Bill Gates?

      I assumed "Bill" == Clinton. In case he needed to get out of town really fast.

    7. Re:"Bill and his mates"? by b0r1s · · Score: 2, Informative

      the article says A$160m , whereas the description says US$80m ... not all dollars were created equal.

      --
      Mooniacs for iOS and Android
    8. Re:"Bill and his mates"? by ComaVN · · Score: 1

      AUS$160m, not US$160m
      extra text added to avoid lameness filter

      --
      Be wary of any facts that confirm your opinion.
    9. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0

      It says $160m *australian*.

    10. Re:"Bill and his mates"? by Anonymous Coward · · Score: 1, Funny

      So we went to this bar up in Vancover and there was a sign at the front that said "cover charge : $4 American, $6 Canadian" and my blonde friend said "why would anyone admit to being a Canadian?". &ltrimshot&gt

    11. Re:"Bill and his mates"? by JohnG · · Score: 2
      Calm down dude, first of all, suggesting that someone may buy a private jet is hardly a potshot. Would you be offended if I said that you might be interested in a private jet?
      Secondly, I think the main reference was just made because Bill is one of the few people who could afford an $80,000,000 jet. In fact anytime ANYBODY wants to make a reference to being wealthy they use Bill Gates. "$100 a head?! What am I.. Bill Gates!", etc. etc. etc.
      Maybe the problem is you see everything as an insult towards Microsoft when it really isn't.

    12. Re:"Bill and his mates"? by Tower · · Score: 1

      Actually, the arcticle says $A160 million... which converts nicely to $41312 million (or $41.312 billion...) Hey, it looks like hex to me :)

      --
      "It's tough to be bilingual when you get hit in the head."
    13. Re:"Bill and his mates"? by Lonath · · Score: 1

      No shit. Microsoft just released a news report saying that they've cured cancer. Then they wrote that they would charge for the cure. Those bastards, always trying to screw us over. Is it any wonder we pick on them so much?

    14. Re:"Bill and his mates"? by RollingThunder · · Score: 2

      Wasn't Bill Gates the richest man in the US for a good long while?

      What BETTER person would a comment about frivolous spending by the rich be targeted at, than the richest one?

      (Omitting, of course, that one rarely becomes rich by spending frivolously, but rather by hoarding and spending only where there's a return on investment)

    15. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0
      That's pretty funny!

      I can't stand the goddamn self-righteous Canadians who, given the chance, will just pretend to be Americans just to get pussy. I've seen it happen.

    16. Re:"Bill and his mates"? by Erasmus+Darwin · · Score: 2
      "Are we taking potshots at MS for absolutely no reason now?"

      I think the point is that if you were to make a list of people who could afford to plop down $80 million for a plane without batting an eyelash, and then were to sort the list by order of name recognition, Bill Gates would be at the top of that list. BFD -- Slashdot took a horrible, horrible potshot at Bill by implying that he's rich. Next they'll start accusing Stephen Hawking of understanding physics.

    17. Re:"Bill and his mates"? by orichter · · Score: 1

      This is just an assinine reactionary comment. Isn't it possible that by "Bill and his mates", he means the richest guy in the world, and the other richest guys in the world. I don't think he was saying anything about Bill except that he's the richest guy in the world, and thus would be a prime candidate for an expensive jet. I didn't see any potshots taken myself.

    18. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0

      What BETTER person would a comment about frivolous spending by the rich be targeted at, than the richest one?

      Oh... I dunno... McNealy (he has a doghouse built into the architecture of every Sun office for his dog, you know...)... or how about 'nutzo' Larry Ellison?

    19. Re:"Bill and his mates"? by RollingThunder · · Score: 2

      True, they are better targets for those in the know, because they actually are more frivolous than Bill (based on that info).

      I guess I'm just saying that it's not always MS bashing when BillG gets mentioned. There's other reasons to select him as examples. :)

    20. Re:"Bill and his mates"? by Fortyseven · · Score: 1

      Yeah, it's not like Gates is one of the richest men on earth or anything.

      He's one of the stereotypical Rich Business Men. And since this is a computer-centric site, it's only natural that ol' Bill ("I call him 'Money' for short") Gates would be the target of bignum wealth humor.

    21. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0

      Who the fuck moderated this as insightful? They weren't having a go at MS at all - Bill Gates is one of the richest people in the world, so it's entirely justified to say something along the lines of "Bill and his mates" when talking about something that costs a stupid amount of money.

    22. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0
      "Bill and his mates" was in the original post by "zerogeewhiz" and instead of censoring the persons words, it appears they left it in. Besides, Bill is a well known individiaul who could actually afford something like this. It was harmless but unfortunately we've seen so much M$ bashing it's easy to jump to conclusions & down Hemos's throat.

      CodeMunch (home dot com at codemunch)

    23. Re:"Bill and his mates"? by Alan+Partridge · · Score: 1

      are you yakeemericons aware that obesity decreases levels of male Testosterone. Current predictions indicated that American males will become completely sterile when they ALL weigh more than 200KG. Around 2008, I think it was.

      --
      That was classic intercourse!
    24. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0

      No, the press release said they've found a cure for THE cancer, the gpl. Meet Fat Tony and Jimmy the Squid, AkA The Cure.

    25. Re:"Bill and his mates"? by Blue+Neon+Head · · Score: 2

      I think the poster was just referring to the billionaire's club, of which Bill is probably the most notable member.

    26. Re:"Bill and his mates"? by daviddennis · · Score: 2

      I like Larry. At least he has a bit of fun with his money. I'm not sure if Bill knows the meaning of the word.

      D

    27. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0

      In that case, it is worth noting that '$1 million' means '$1048576.'

    28. Re:"Bill and his mates"? by Anonymous Coward · · Score: 0

      At a glance it may appear that Slashdot is manically obssessed with Microsoft. But if you delve deep into the paper trail you'll find a very ugly secret indeed - slashdot is actually secretly funded by the marketing division at Microsoft.

      You'd have to think so given the amount of free publicity they're given on here.

  4. Re:Concorder by Anonymous Coward · · Score: 0

    And Leo`s getting laaaaarger.

  5. Extending Length to PREVENT Sonic Booms? by Rura+Penthe · · Score: 4, Interesting

    I'm somewhat confused on this count. Would extending the length of a plane actually prevent a sonic boom? According to Britannica : "If the aircraft is especially long, double sonic booms might be detected, one emanating from the leading edge of the plane and one from the trailing edge."

    Has new technology been developed with regards to this?

    1. Re:Extending Length to PREVENT Sonic Booms? by cnkeller · · Score: 1
      Has new technology been developed with regards to this?

      You haven't heard? Micrsoft now owns most of reality, laws of physics included. :-)

      --

      there are no stupid questions, but there are a lot of inquisitive idiots

    2. Re:Extending Length to PREVENT Sonic Booms? by G-funk · · Score: 2, Informative

      Read the article, the story poster got it wrong, they're elongating the front and the eng of the plane, ie stretching them out so the angle isn't so great, not making the plane longer. They're not actually trying to say they can prevent sonic boom, afaik that's not possible (hey prove me wrong), they just want to controll it a bit so it's not so damaging to ears / buildings / windows / fine crystal wine glasses

      --
      Send lawyers, guns, and money!
    3. Re:Extending Length to PREVENT Sonic Booms? by Anonymous Coward · · Score: 0

      Yeah, Popular Science had something on this a little while ago. They are trying to create less drag by increasing the number of wing surfaces, but decreasing the curvature or something. Thus the amount of sonic bomb would be smaller, and over multiple air surfaces, instead of just the main wings. Or something to that effect.

    4. Re:Extending Length to PREVENT Sonic Booms? by Mr.+Eradicator · · Score: 1

      Do you have a link to that article? I'm curious to find out how they reduce the shock effects. I guess they could create lots of small angles on the leading edges, thus making several shockwaves that transition to subsonic more "smoothly", but I still don't see how that would reduce the effects of the shockwave to "innocent bystanders".

      --

      That's Mr. Eradicator to you.

      trance-port
    5. Re:Extending Length to PREVENT Sonic Booms? by bark76 · · Score: 1

      What I got from the article is that extending the length of the aircraft widens the shockwave of the sonic boom. I've never heard of sonic booms being prevented...

    6. Re:Extending Length to PREVENT Sonic Booms? by costas · · Score: 5, Informative

      Short lesson on high-speed aerodynamics follows:

      * The "intensity" (read: energy) of a boom is proportional (roughly) to the speed of the aircraft and the angle of attack of the wing or fuselage.
      * To lower the energy wasted in a sonic boom, you can either go slower (neah...) or lower the angle of attack. For a wing, this is kinda easy: either sweep it back (notice a how much further back a fighter's wings are than an airliner's?) or make it thinner (so that the cross-sectional angle of attack, so to speak, is less).
      * For a fuselage it gets trickier: a fighter need only fit one person, and you can extend the nose long enough to lower the leading angle of attack. And you don't care about traling shocks or really shocks at all, because you're in a fighter. You're supposed to terrify people.
      * But for a commercial jet, you will have to take care of both ends of the fuselage, and the only way is to make them longer, and have them taper out smoother. Look at the Concorde's absurdly long nose (so long, it has to be pivoted so that the pilots can see the runway at take-offs and landings) and its thin tail. Now, you know why they're there.

      Supersonic business jets have always been possible. However, new, more efficient engines and cheaper high performance materials are only now making them affordable (well, relatively at least :-)...

    7. Re:Extending Length to PREVENT Sonic Booms? by waltal · · Score: 1

      I'm sorry, this answer is nonsense. So is the original article, which is really terrible. Thirty minutes to go halfway around the world? There's all the clue you need that the author is clueless.

      I worked on the Gulfstream V design, and yes Gulfstream had a supersonic bizjet on paper. There is no way to do the things in the article. If you are going to dream big dreams, stick to something practical and achievable, like teleportation.

    8. Re:Extending Length to PREVENT Sonic Booms? by costas · · Score: 2

      I didn't say the article made sense, I was just answering the parent post's question...

      And I don't see why my answer is nonsense (simplified maybe, but not wrong). If you worked for Gulfstream, maybe you can back it up, aero engineer to aero engineer.

    9. Re:Extending Length to PREVENT Sonic Booms? by Eccles · · Score: 1

      So is the original article, which is really terrible. Thirty minutes to go halfway around the world? There's all the clue you need that the author is clueless.

      The author said 30 minutes going from Sydney to Melbourne, which is far from going halfway around the world.

      --
      Ooh, a sarcasm detector. Oh, that's a real useful invention.
    10. Re:Extending Length to PREVENT Sonic Booms? by Mr.+Eradicator · · Score: 1

      I hardly think Sydney to Melbourne is "halfway around the world". A 600-mile trip in a half-hour is reasonable (assuming they don't count taxi, takeoff, and landing time in that).

      --

      That's Mr. Eradicator to you.

      trance-port
    11. Re:Extending Length to PREVENT Sonic Booms? by Anonymous Coward · · Score: 0

      No, he didn't say 30 minutes to go half way around the world. It said 30 minutes to go from Sydney to Melbourne, which is much, much more than halfway around the world if you start-out by going the opposite direction. In the worst case, those two cities are 24,500 miles (24,900 circumference of Earth minus their distance apart) from each other. So, the author was saying that the speed of the plane would be a number less than 49,000 miles per hour. Reading comprehension would be a good thing

    12. Re:Extending Length to PREVENT Sonic Booms? by carlos_benj · · Score: 1

      Would extending the length of a plane actually prevent a sonic boom?

      Given a sufficiently long plane, sufficiently long flight and sufficiently fast passengers you could have the passengers board in the rear and run toward the front during the flight. This could allow the aircraft to fly a teensy bit sub-sonic and have the passengers moving at or above the speed of sound. Whether individual passengers would now emit sonic booms would depend on what was being served as an in-flight meal in coach.

      --

      --

      As a matter of fact, I am a lawyer. But I play an actor on TV.

    13. Re:Extending Length to PREVENT Sonic Booms? by carlos_benj · · Score: 1

      The author said 30 minutes going from Sydney to Melbourne, which is far from going halfway around the world.

      Kinda depends on which direction you go doesn't it?

      --

      --

      As a matter of fact, I am a lawyer. But I play an actor on TV.

    14. Re:Extending Length to PREVENT Sonic Booms? by SysKoll · · Score: 2, Informative

      There is actually a way to soften the sonic boom by lenghtnening the plane.

      What makes a sharp sonic boom is the dissipation of a lot of energy over a small distance. You can't do much to lower the energy of a plane's shockwave when it reaches Mach 1, but you can expand the area over which that energy will be concentrated. This is done by lenghtening the cone-shaped high-pressure shockwave that surrounds the plane.

      This way, the shockwave's pressure gradient is spread over a longer surface (roughly a cone starting from the tip of the plane), and thus, with the same pressure difference over a bigger distance, the gradient is lower.

      The sonic boom's enery is the same, but since it's spread over a longer distance and hence a longer time, it gives less instantaneous power. So you have a flattened pulse that is theoretically muffled, instead of a sharp spike. (If you want to visualize the concept, burn a candle, then explode a hand grenade. See, the total energy was roughly the same, but the grenade produced it in a sharp spike.)

      The resulting experimental plane looks like the old supersonic fighters of the 60's, with a cone tip that looks way too long for modern standards.

      There was an article about this in Aviation Week but their web site is subscribers only.

      -- SysKoll
      --

      --
      Mad science! Robots! Underwear! Cute girls! Full comic online! http://www.girlgeniusonline.com/

    15. Re:Extending Length to PREVENT Sonic Booms? by bracher · · Score: 1

      well, Ron Buckmire, one of my math professors in college did his PhD work on "The Design Of Shock-Free Transonic Slender Bodies" [abacus.oxy.edu]. pretty interesting stuff, though the math gets a bit deep.

      if I remember correctly (it's been a few years since I heard him describe the work), they worked out a closed form solution to the equations that govern fluid flow over a transonic body. given that, it isn't too hard to engineer a fuselage that doesn't generate a boom as it reaches mach 1. oddly enough, it looks suspiciously like a missile.

      - mark

    16. Re:Extending Length to PREVENT Sonic Booms? by ordinarius · · Score: 1

      Not that this directly relates to "length" but there are other games you can play. Check out ...

      http://www.nas.nasa.gov/Pubs/TechSums/9293/10.html #HDT%2021

      I wish I had a link to the full paper. What they were trying to show (I think) was that by necking down the fuselage at just the right place, the expansion fan from the fuselage mixes with the wing's leading edge compression wave and to a small extent cancel each other out. The goal was to try to reduce some of the peaks in the N wave, and thus reduce the perceived sonic boom. In other words, try to turn a bang (or two) into a rumble so to speak.

      - Ordinarius

    17. Re:Extending Length to PREVENT Sonic Booms? by Paul+Jakma · · Score: 1

      Concorde's nose is only down for landings. all other times nose is up.

      <bragging>

      you wouldn't believe how cramped the cockpit of concorde is. i had difficulty getting into the seat, and i was a nimble teenager then!

      oh yes... i've also flown in /lots/ of private jets.

      </bragging>

      --
      I use Friend/Foe + mod-point modifiers as a karma/reputation system.
    18. Re:Extending Length to PREVENT Sonic Booms? by Anonymous Coward · · Score: 0

      huh? if you went east, you'd be going a hell of a lot more than HALF way 'round the world, numb-nuts

  6. Concorde Avionics (or lack thereof) by green+pizza · · Score: 4, Interesting

    Have you seen a photograph of a Concorde cockpit? It looks like something straight out of a 707, it's ancient. There's not an LCD, CRT, or even an LED to be seen. The typical "flight computer" is usually the pilot's own handheld PDA, ditto for GPS. If I were going to pay $big for private use of a Concorde, it by gosh better have some real avionics.

    Even the B-52H has a nice modernized cockpit with screens galore. If that old clunker can be up to date, there's no reason why a Concorde can't.

    1. Re:Concorde Avionics (or lack thereof) by SirWhoopass · · Score: 4, Insightful

      Aviation is one of those areas where, if it ain't broke, don't fix it [insert Concorde crash joke here]. People's lives are at stake with the equipment in an aircraft, so you don't want to upgrade simply to make everything look cool.

    2. Re:Concorde Avionics (or lack thereof) by Turmio · · Score: 1

      If i recall correctly, Concorde did her maiden flight in 1968 so it must've been designed in the early 60's. Those fancy LCD's just didn't exist back then. And no, you just can't, or atleast you shouldn't, redesign the cockpit of old supersonic yet just because some cool new gear is available nowadays. The old stuff just works.

    3. Re:Concorde Avionics (or lack thereof) by terrymr · · Score: 1

      GPS doesn't work at supersonic speeds anyway so there wouldn't be much point in having it.

      Of course this may not be true for militray GPS receivers I don't know I've never seen one.

    4. Re:Concorde Avionics (or lack thereof) by gorilla · · Score: 2

      It's no different to any other plane of it's era, compare it with say a 747-100. No airline in the world can afford to replace the entire cockpit and get it certified as flight ready. The miltary can afford the costs of major refits, so that's why the very expensive refit of the B52's included a new cockpit.

    5. Re:Concorde Avionics (or lack thereof) by qmrf · · Score: 1

      In general, pilots tend to prefer old-school analog dials and needles to digital readouts. Especially in high-performance aircraft. It's a heck of a lot easier to look at a needle and say, "oooh, that one's getting close to the red part," than to look at an LCD and say, "73. what does 73 mean? is that close to too high, or close to too low, or just right?"

      Thus, when they rip out the old dials to put in computer screens, the computer screens display digital versions of the same old dials, because that's the way the pilots like it. (there was an article on /. a year or two ago on this in the space shuttle. but i'm too lazy to bother even thinking about finding it.)

      And a CRT/LCD has a lot more that can go wrong than does a mechanical dial (considering that most of the data is gathered in a mechanical fashion anyways). Meaning that if you can have the exact same info displayed on a mechanical dial or on a picture of a mechanical dial on a digital display, replacing the dial with the digital makes no sense whatsoever.

      It doesn't do any real damage when your computer crashes, so it's perfectly fine to "upgrade" to the latest whiz-bang, bleeding-edge, doesn't-actually-work technology. When an airplane travelling at super-sonic speeds crashes, it does a lot more damage, so it pays to consider your upgrades a little more carefully.

    6. Re:Concorde Avionics (or lack thereof) by Matt · · Score: 1

      GPS doesn't work at supersonic speeds anyway so there wouldn't be much point in having it.


      Some GPS receivers won't. They most certainly can work supersonic. Some spacecraft use them, and that's mach 25.


      I remember running GPS receivers on a test setup which simulated the signals transmitted by satellites. One scenario we used had the GPS receiver "flying" at 1000 meters / second .


      Given that speed, I guess that would be a SR-71. Except for the part about it doing 10 G
      accelleration turns every minute.


      This of course wasn't a $200 consumer handheld GPS receiver.

    7. Re:Concorde Avionics (or lack thereof) by Mr.+Eradicator · · Score: 1

      GPS is also used on some satellites. In LEO, these would be travelling at hypersonic velocities (of course this statement is sort of ridiculous considering the lack of sound, and therefore speed of sound, at the extremely low-pressure atmosphere, but you get my point).

      --

      That's Mr. Eradicator to you.

      trance-port
    8. Re:Concorde Avionics (or lack thereof) by slykens · · Score: 1
      The miltary can afford the costs of major refits, so that's why the very expensive refit of the B52's included a new cockpit.

      Just as a side note, some B-52's are scheduled to remain in service until 2035, making them 80 years old at that time. It's easier to justify an expensive upgrade if you're extending the life of the aircraft by at least the lifetime of a new aircraft. How many commercial aircraft last even 30 years in regular service with their original airline? (Qualified as big airlines will pawn off the old equipment on smaller airlines and third world airlines, but in general a commercial aircraft will only last 30-40 years in regular commercial service)

    9. Re:Concorde Avionics (or lack thereof) by ckaminski · · Score: 1

      well, if that argument worked, they wouldn't be updating the cockpits of the Space Shuttle, which is one whole hell of a lot more temperamental than 1 concorde jet. Granted, the shuttle does get refitted like no other machine in existence after every flight...

      :-)

    10. Re:Concorde Avionics (or lack thereof) by Remote · · Score: 3, Informative

      People's lives are at stake with the equipment in an aircraft, so you don't want to upgrade simply to make everything look cool.

      But you still want to upgrade. Reducing pilot stress is one main factor in improving safety and those cockpit's from the 60's and 70's suck. You should see the cockpit of the infamous Comet, pity I don't have a link... Modern avionics are just as reliable as old dials, but pilots don't like the feel of not having control. I used to fly airplanes (ok, Piper Cherokees) and if I could have a dial showing me tire temperature or rudder angle I'd surely want one, yet usefulness would be highly questionable.

      The Concorde is a weird beast, and most things about that airplane are are different. Let me give you two examples:

      Cruise flight in a modern airliner is boring. You just supervise a few systems and sip your coffee (or actually sleep, as many pilots acknowledge. Some other things they won't acknowledge...). Not in a Concorde. That airplane burns lots of fuel considering its size, which means weight and CG change considerably during a trip. The flight engineer has to monitor the fuel in the many tanks and transfer it from here to there to maintain the CG where it's supposed to be, which also depends on how the plane is loaded in each trip. Lots of calculations, lots of monitoring. Also, the lighter the airplane, the highest it will fly at optimum fuel consumption. In normal jet aviation you're given a flight level and during the trip you are tipically allowed to switch to a higher level two or three times. The Concorde flies high, above 40.000 ft, where airspace is not controlled, so the pilot can gradually increase altitude during the trip. Actually one *has* to, if consumption is to be kept to the minimum. These are two tasks that should be handled by computers in my opinion, drawing attention from the crew only if something goes out of pre-established parameters.

    11. Re:Concorde Avionics (or lack thereof) by Owen+Lynn · · Score: 1

      I agree. Flying is risky enough as it is, without giving the old wheel a big spin, like putting in a completely new instrument panel. Yes, you can do it, but should you? Especially when you're betting people's lives?

      As long as there are backup mechanical instruments in the cockpit, there's nothing wrong with electronic indicators, and I don't think there's any aerospace engineer who would disagree with that. The electronic stuff can save a lot of work and time, but like everything else in aviation, you gotta know what to do if the thing fails on you. And they will.

    12. Re:Concorde Avionics (or lack thereof) by BarefootClown · · Score: 2

      The Concorde flies high, above 40.000 ft, where airspace is not controlled, so the pilot can gradually increase altitude during the trip.

      Almost. Class A airspace extends from 18,000 feet to 60,000 feet (Actually, 18,000 feet to FL600, but I digress). Class E airspace overlies Class A, extending from FL600 upward, presumably indefinitely (I have never heard of an official top to that Class E). Class E is also controlled airspace for those aircraft on an IFR flight plan.

      Concorde flies in Class A airspace above FL400, so it is controlled. They do climb during cruise, though--instead of a specific altitude, they are cleared to cruise at a "block altitude," an altitude range with a lower and upper limit. Such a clearance might read "maintain between FL390 and 550," which would indicate that the aircraft may be operated between FL390 (approximately 39,000 feet) and FL550 (approx. 55,000').

      Incidentally, I mentioned that Class E is only controlled to IFR aircraft; if you are VFR, Class E is uncontrolled (for all practical purposes). Entry into Class A requires that you be on an IFR flight plan, so to climb to the overlying Class E, you would have to be on an IFR flight plan. You can cancel your IFR clearance after leaving Class A, but it would be impractical, and airliners are required to fly IFR at all times anyway, so Concorde would never be uncontrolled, even if it were in Class E airspace.

      --

      "Make it ten--I am only a poor corrupt official."
      --Captain Louis Renault (Claude Rains), Casablanca

    13. Re:Concorde Avionics (or lack thereof) by Paul+Jakma · · Score: 1

      concorde would use INS - inertial navigation system, gyro stabilised.

      good for an error of under 10miles for a trans-atlantic flight. which is, what, an error of less than 1% in order of magnitude? (transatlantic is maybe 3000miles?)

      --
      I use Friend/Foe + mod-point modifiers as a karma/reputation system.
    14. Re:Concorde Avionics (or lack thereof) by amorangi · · Score: 1

      The Concorde's systems are entirely analogue, unlike today's modern digital systems. In fact it is difficult to source parts for Concorde because of this. However Concorde is not an 'evolving' plane such as the 747, they are not building any more, they are simply being nursed along as they are and there is no financial reason to invest in upgrading what few that exist.

    15. Re:Concorde Avionics (or lack thereof) by jeremyp · · Score: 1

      I bet you could find a few DC3s still in service out there, probably not with their original airlines though.

      --
      All I want is a secure system where it's easy to do anything I want. Is that too much to ask ~~ Randall Munroe
    16. Re:Concorde Avionics (or lack thereof) by gorilla · · Score: 2

      Airlines usually replace their aircraft because a newer model fits better, is cheaper to run etc. The 757 has been a popular replacement for the 737. Where you will find the older planes still in service is where the isn't really a replacement - there isn't much point in selling a 30 year old 747 and buying a new one, unless you really want the differences between the 747-100 and the 747-400 (extended range & cabin capacity mainly), so you'll still find many older 747's in service. TWA flight 800 was a 747-131, and Pan Am 103 was a 747-121. The way that Boeing's codes go, the first digit in 121 identifies the series, and the last two identify the original customer, Pan Am's code is 21, and TWA's is 31, so both of these were still owned by their original airlines.

    17. Re:Concorde Avionics (or lack thereof) by Remote · · Score: 2

      Right. Airspace above FL400 may be controlled, as is the case in the U.S. and other places. I really meant Concorde pilots are allowed to gradually climb instead of being locked to a few flight levels. Thanks!

  7. Formula for Slashdot articles by Macaw2000 · · Score: 3, Redundant

    Article = cool technology + attack on Bill Gates + class envy + conspiracy + neo-liberalism.

    1. Re:Formula for Slashdot articles by notestein · · Score: 0

      Hey, I'll give you two points for that.

    2. Re:Formula for Slashdot articles by Anonymous Coward · · Score: 0

      you forgot to multiply by 2, to account for the eventual duplicate post

    3. Re:Formula for Slashdot articles by Anonymous Coward · · Score: 0

      This is "4, Insighful?" Are the troll moderators in full effect today?

  8. They wanted to impress Chirac by imr · · Score: 1

    He paid only $300 000
    http://news.bbc.co.uk/hi/english/world/europe/ne ws id_1438000/1438362.stm

  9. Corporate Interceptor by Nick+Number · · Score: 5, Funny

    for a cool US$80 million, you too can overtake the Concorde on a dash to Harrods for dinner

    Er, for that kind of money you might as well pick up a used F-14 Tomcat. It may not have a cushy interior and cleverly-shaped bourbon dispensers, but show me another corporate transport that mounts Phoenix missiles. You'll be envied (and feared) by all your rivals chugging around in those wimpy Learjets.

    --
    Promote proofreading. Don't mod up sloppy posts.
    1. Re:Corporate Interceptor by zulux · · Score: 1

      Actually, a F-14 would be really cool for one really important reason: you can eject when nesessary.

      --

      Moneyed corporations, non-working 'poor' and criminal prisoners are turning productive citizens into tax-slaves.

    2. Re:Corporate Interceptor by Zachary+Kessin · · Score: 2

      Well it probably wouldn't do what you want. Most fighters can't stay supersonic for a long time. For one thing they don't have the fuel. For another the engines were not designed to do it.

      They just refuel in the air.

      --
      Erlang Developer and podcaster
    3. Re:Corporate Interceptor by Nick+Number · · Score: 5, Funny

      Actually, a F-14 would be really cool for one really important reason: you can eject when nesessary.

      Yep, those high-paid executives do like to bail out when the going gets tough.

      What color is YOUR parachute?

      --
      Promote proofreading. Don't mod up sloppy posts.
    4. Re:Corporate Interceptor by cprael · · Score: 2

      Actually, I was looking at the feasibility of picking up a surplus C-141, rewinging and re-engining it, redoing the avionics, then fitting a nice passenger cabin inside. You could get the whole mess for about what a G-V would cost, and those don't come with a two-car, drive in garage, or air-to-air refueling capability (if you can get someone to lug the gas up there for you...). On a more practical front, it makes for a much more convenient people + equipment toter.

    5. Re:Corporate Interceptor by spaceyhackerlady · · Score: 2, Interesting

      Indeed - I have read that limited range is a significant commercial problem for Concorde.

      When it was designed in the 1960s, New York to London was big business, and was the kind of range you could make money with. Now it's L.A. to Hong Kong, far beyond Concorde's reach unless you refuel. Which kills the speed advantage.

      I've heard Concordes take off from Heathrow, and they are indeed loud. They have that turbojet shriek that you only hear from military jets nowadays.

      I still want to ride on one.

      ...laura

    6. Re:Corporate Interceptor by WinterSolstice · · Score: 1
      I can see it now, the McDonald's Douglas aircraft fleet. The ultimate in corporate power, to have your very own Harrier or what-not. All we need is for people who enjoy meetings too much anyhow to have the ability to fly to meetings in something like that.


      And I used to feel cool when I hooked my Jornada up to a Stowaway in meetings. Now I'll need a jet too! Darned Joneses!


      -WS

      --
      An operating system should be like a light switch... simple, effective, easy to use, and designed for everyone.
    7. Re:Corporate Interceptor by Anonymous Coward · · Score: 0

      I thought Larry Ellison already owned a bunch of military jets...

    8. Re:Corporate Interceptor by Fishstick · · Score: 1

      Yeah, but that 200+ mile range of the Phoenix makes up for it a bit...

      --

      There is much cruelty in the universe, John.
      Yeah, we seem to have the tour map.

    9. Re:Corporate Interceptor by Zachary+Kessin · · Score: 2

      OH the LHR-JFK (and LGW-EWK) runs are still big. BA alone does about 10 flights a day each way. The smallest (JFK-LGW) on a 767. Add all the other airlines going New York to London and you will find that you probably have 25 or so large airliners going each way each day.

      --
      Erlang Developer and podcaster
    10. Re:Corporate Interceptor by Anonymous Coward · · Score: 0

      I've heard Concordes take off from Heathrow, and they are indeed loud.

      I live in Bristol (UK), which is where Concorde regurlarly returns to British Aerospace here in Filton. Concorde tends to fly over the city after takeoff fairly often, and yes, they are loud.

      Attempting to have a conversation in a pub garden when Concorde is flying overhead at no more than a few thousand feet is a none to easy, put it that way. Loud doesn't even begin to describe the sort of noise those things create....

    11. Re:Corporate Interceptor by Paul+Jakma · · Score: 1

      i used to live a few miles from prestwick airport, and concorde would be on training runs every now and then, including touch-and-go's on full throttle+afterburner. the noise is /unbelievable/.

      beautiful airplane. tiny inside though.

      --
      I use Friend/Foe + mod-point modifiers as a karma/reputation system.
    12. Re:Corporate Interceptor by CConkle · · Score: 1

      Maybe I'm hopelessly ignorant, but _how_ can you do a touch-and-go on full throttle, let alone burner? It doesn't bloody work out, unless you have _serious_ landing gear. :)

      Or maybe you mean that the "go" part was on burner. That would make sense. :)

    13. Re:Corporate Interceptor by Paul+Jakma · · Score: 1

      LOL...

      yes they'd do the "go" bit on full throttle+afterburners. doing the touch part like that would be interesting to watch, but probably not useful in terms of killing many of the pilots before completing their training. :)

      My dad managed to get permission to bring me to walk around and in concorde once while it was in prestwick. amazing machine..

      but astoundingly loud..

      --
      I use Friend/Foe + mod-point modifiers as a karma/reputation system.
  10. It's their money... by MatthewLovelace · · Score: 0

    ...and if they want to blow it on toys like this, more power to them. After all... new toys for rich boys make new jobs for working slobs.

    --

    ******
    "What makes you think I care about your opinions?"

  11. Why the Sydney morning herald? by Anonymous Coward · · Score: 3, Informative

    The original Telegraph article is much longer and talks about the economics of production, and other developments in the fast-plane industry.

    1. Re:Why the Sydney morning herald? by Anonymous Coward · · Score: 0

      because the submitter (zerogeewhizz) is australian. (has a .au email at least)

  12. Newscientist Article by null-loop · · Score: 2, Informative

    There's a very cool article over at newscientist.com about this (http://archive.newscientist.com/archive.jsp?id=23 044700 free reg required), I read the print version of it. They've got a number of technologies they want to bring to supersonic travel, lengthening the plane being just one of them.

    --
    "If you unscrew Bill Gates' navel will the bottom fall out of the software market?"
  13. Sure maybe you've heard a sonic boom.... by moniker_21 · · Score: 2, Informative

    but have you ever seen one? Check out this image I found a little while back.
    (http://antwrp.gsfc.nasa.gov/apod/ap010221.html for the concerned web surfer)

    When I read stuff like this, I can't help but wonder how long it's going to be before we'll all travel at super-sonic speeds for our presonal excursions, not just the ultra-rich.

    --
    I posted to /. and all I got was this stupid sig
    1. Re:Sure maybe you've heard a sonic boom.... by Anonymous Coward · · Score: 0
      Credit: Ensign John Gay, USS Constellation, US Navy

      ... in the navy you can sail the 7 seas ...
  14. Bill? by Otter · · Score: 3, Redundant
    Bill and his mates..Huh? There's no Bill in the article. If this is a reference to Bill Gates, it has to be the most contrived jab at Microsoft in the history of this site. (And that's saying something -- remember "Hotmail About To Collapse Under Load" or the whining about X-Box bundling recently?)

    Geez, Larry Ellison flies a MiG! And Gates flew in coach, sleeping with a blanket over his head, until the mid 90's, IIRC.

    1. Re:Bill? by TheMidget · · Score: 1
      Geez, Larry Ellison flies a MiG! And Gates flew in coach, sleeping with a blanket over his head, until the mid 90's, IIRC.

      Why the blanket? In order not to be recognized and pestered by angry Linux fans?

    2. Re:Bill? by Anonymous Coward · · Score: 0

      I would think the angry windows users would be more of a porblem.

    3. Re:Bill? by p3d0 · · Score: 1

      How could you possibly think that a reference to Bill Gates' immense wealth would be a "jab at Microsoft"?

      Looks like your knee jerked so hard it stuck your foot right into your mouth.

      --
      Patrick Doyle
      I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
    4. Re:Bill? by Anonymous Coward · · Score: 0
      "Bill and his mates" was in the original post by "zerogeewhiz" and instead of censoring the persons words, it appears they left it in. Besides, Bill is a well known individiaul who could actually afford something like this. It was harmless but unfortunately we've seen so much M$ bashing it's easy to jump to conclusions & down Hemos's throat.

      You're just as guilty:
      And Gates flew in coach, sleeping with a blanket over his head

      WTF does a "blanket over his head" have to do with anything? He's not pooor Timmy being gilted by Scrooge.

      CodeMunch (home dot com at codemunch)

    5. Re:Bill? by tryfan · · Score: 1

      I really, really, really agree with this. This is not the way you spread inormation; it's just the way you spread rumours.

      I'm NOT a friend of Bill's but the post is just disinformation of the stupidiest kind!

  15. For this kind of money... by Waffle+Iron · · Score: 5, Interesting
    ... I bet that you could put together a teleconferencing system with close to IMAX quality. It would use a lot less fuel, too.

    A dedicated 100-Mb fiber link should be sufficient. Imagine hardball business negotiations in 9-channel Dolby surround sound.

    1. Re:For this kind of money... by Tumbleweed · · Score: 3, Funny

      That's what I was thinking...and whenever the CEO makes a statement, he can press a button for some incidental music! Or maybe rimshots whenever someone says something stupid. Think of the possibilities for humiliation of your subordinates!

    2. Re:For this kind of money... by small_dick · · Score: 2

      that's the first thing i thought when i read about this -- "what a horrendous waste of money" -- TCP/IP will always be faster that anything flying through the air.

      --


      Treatment, not tyranny. End the drug war and free our American POWs.
      See my user info for links.
    3. Re:For this kind of money... by Fishstick · · Score: 1

      Yeah, but these corp CEO types gotta do the face to face. For good or bad, being in the same room as the person you are talking to still carries a lot of weight for these people.

      --

      There is much cruelty in the universe, John.
      Yeah, we seem to have the tour map.

    4. Re:For this kind of money... by dillon_rinker · · Score: 2

      ...this is the funniest thing I've read all day...I think you should submit this to Scott Adams for potential inclusion in Dilbert...

    5. Re:For this kind of money... by rtaylor · · Score: 1

      Umm.. TCP/IP is NOT faster than a jet, especially if the hardware used to transport the packets is a jet.

      The structure of the packet has no definition of transmission speed other than how we tend to use it. A perfect example is TCP/IP over Carrier Pigeon which is a proven technology with poor reliability BUT it will work across open air with minimal power consumption (namely birdseed)

      --
      Rod Taylor
    6. Re:For this kind of money... by LilGuy · · Score: 1
      ... I bet that you could put together a teleconferencing system with close to IMAX quality. It would use a lot less fuel, too.

      Yeah but where would you put the 200 lb camera? On top of the monitor? I don't think so... :P

      --

      You're nothing; like me.
  16. What happened to "Getting there is half the fun"? by Robber+Baron · · Score: 4, Interesting

    Some of the my most memorable journeys have been long train trips. So what if it takes you three days to travel coast to coast? You get to relax, get up, walk around, meet some of your fellow travellers...it's great fun and a hell of a lot more civilized than being strapped into a supersonic missile like so many Aztec sacrifices...

    Besides, you know how much we get pissed-off when some Yuppie asshole's cell-phone starts ringing when we are trying to enjoy a nice restaurant or theatre performance? "Look at me! I'm so fucking important that I need to disturb everyone around me!" Well that's just going to get a whole lot worse. "Look at me! I'm so fucking important that I need to smash out everyone's windows as I race off to yet another "important" meeting!"

    Anyone know where I can get a Patriot missile battery cheap?

    --

    You're using her as bait, Master!

  17. No Mention of Gates by sucko · · Score: 0

    The article doesn't even mention Microsoft or Bill Gates. You bigots got your panties in a bunch over nothing. Again.

  18. Sloppy Reporting by hanway · · Score: 3, Interesting

    Concorde is "the world's dirtiest and loudest aircraft?" That's pretty sloppy reporting. It's probably true for commercial airliners, but there are probably many military planes that are louder and belch more smoke. I'll bet that the B-52 is dirtier and the SR-71 is louder.

    1. Re:Sloppy Reporting by macsforever2001 · · Score: 1

      I'll bet that the B-52 is dirtier and the SR-71 is louder.

      Certainly, and the Space Shuttle is probably loudest of all when it is returning to Earth in airplane mode - gotta love the double sonic booms! Granted it is completely clean because it is gliding at this point.

    2. Re:Sloppy Reporting by elefantstn · · Score: 2
      I'll bet that the B-52 is dirtier and the SR-71 is louder.


      Yes, but neither lands in residential areas quite as frequently.

      --
      If it ain't broke, you need more software.
    3. Re:Sloppy Reporting by WolfWithoutAClause · · Score: 2

      However the Space Shuttle's reentry is not clean: largeish quantities of NO, NO3 and other fairly nasty chemicals get made in significant proportions. Overall the Space Shuttle is quite dirty- even the main engines burn LOX/LH which in theory is very clean, but in practice to make LH needs 6x the energy that end up in the fuel...

      The Space Shuttle makes an essentially negligable contribution to pollution; but it's one of the candidates for dirtiest AND loudest although Saturn V may well be the overall prize winner ;-)

      --

      -WolfWithoutAClause

      "Gravity is only a theory, not a fact!"
    4. Re:Sloppy Reporting by (H)elix1 · · Score: 2
      Yes, but neither lands in residential areas quite as frequently.

      I might take that bet...

      I grew up in North Dakota - stop the "residential" snickering, I'm way ahead of you already - and you had B52's and B1's buzzing around all the time. Always fun to watch them fly over you as they touched down. I'm sure other cities with bases near by shared the same problem. The only place the Concord flew out of was Coastal cities, though at $5K a seat, I don't really know what areas they service.

    5. Re:Sloppy Reporting by johnos · · Score: 2

      SR-71 is no longer operational

    6. Re:Sloppy Reporting by Anonymous Coward · · Score: 0

      The B52 is a very clean aircraft, cleaner then most comercial craft with a comprable payload capacity. The SR71 is to date the quitest supersonic aircraft ever built. It also has the same mileage as a 727! You need to read some history regarding these two remarkable aircraft. After I finish dinner for my son ( I'm a single parent, kid befor evrything including slashdot,) I will try to scrounge up some good links.

    7. Re:Sloppy Reporting by Anonymous Coward · · Score: 0

      And you are smoking what?
      The Blackbird was taken out of comission for a while, yes. It was also put back in, and it is currently operational?

  19. About private jet economics and lifestyle by daviddennis · · Score: 5, Informative

    I seem to remember Bill flew in Coach class until his well-known appearance made that a non-starter, so I don't think Bill's that great a candidate.

    Larry Ellison, on the other hand, will buy the first one available, the microsecond it comes up. And Warren Buffet will buy a few for his Executive Jet fleet.

    You can charter a Gulfstream V for $8,500 per flight hour, which means a transcontinental flight would cost about $ 38,000. Skyjet.com reports round trip charters on an IV at $60,000 for the same flight. Ownership is, of course, mind-bendingly expensive; a Gulfstream V is in the $45 million range, and the Citation X (fastest bizjet around, but less luxurious and with half the passenger capacity) is $18m. You also need a full-time pilot and copilot, together with very expensive maintenance, all of which amounts to an overhead of tens of thousands of dollars a month.

    After being squeezed in like a sausage in the USAIR tourist class cabin, I can very much see the appeal of having your own jet. I'm sure that if I was as rich as Bill or Larry, a jet would be one of the first things I'd get. Bear in mind that the Gulfstream has a top speed of Mach .80 and you can get up to Mac .93 on a Cessna Citation X. So it might not be worth the extra money to go supersonic unless you're doubling or tripling the speed of sound (as you do with the Concorde). The long and thin design also might not be as comfortable as the Gulfstream.

    The aforementioned Citation X is about 100 knots (or 25%) faster than a typical commercial flight, and you can arrive at a general aviation airport about 15 minutes before takeoff. Since general aviation airports are most likely a lot closer to you than commercial ones, you can save literally hours by just getting there in ten minutes and taking off almost immediately instead of taking an hour to get to the airport and taking off an hour later. This speed and flexibility is the jet's main advantage compared to, say, simply buying a first-class ticket on a scheduled airline.

    In other words, if your time is worth a lot, you probably want a jet. And if you can fill it to capacity, it's not that much more expensive than first-class airfare. A Gulfstream IV can fit 19 people; first-class airfare coast to coast is about $3,068 for a non-stop flight. So if you're paying $60,000 for your round trip flight, you're paying $3,157 per person instead of $ 3,068 for first class; not too shabby.

    (I spent quite a bit of time flying with a friend who owned a small propeller plane, so I can attest first-hand to the ease and convenience of general aviation airports. Sadly, I have yet to fly on a private jet).

    D

    1. Re:About private jet economics and lifestyle by Anonymous Coward · · Score: 0

      And why is there no mention of The Real Devil® Steve Jobs and the plane he got as compensation, right around the time Apple stock tanked ($1.00 annual salary my ass - how many shares of stock could he have cashed in at any time).

    2. Re:About private jet economics and lifestyle by SLiK812 · · Score: 1

      Don't forget the $50,000 a clip to fill the darn thing up with fuel, if you own it. Jet fuel ain't cheap and you can't just pull up to the local Sunoco and say "Yeah fill 'er up with the Supreme. While you're at it, could you check the engines? I think I ran into a few geese on the way over."

    3. Re:About private jet economics and lifestyle by Zachary+Kessin · · Score: 2

      There are a lot of cheaper aircraft that go slower but can still do better than the airlines for midrange hops. If you are flying on a King Air (twin turbo-prop) about 300 kts I think. You probably can do better than on an airliner for several reasons:

      1) It goes when you want to not when the airline wants it to.

      2) You can go to a lot of smaller GA airports that the airlines don't fly into. So instead of flying to a hub then renting a car and driving for 2 hrs you might be able to go direct.

      3) You can skip the hubs. There are over 5,000 airports in the USA. In a GA plane you can go to any of them. OK the jets can't get into many of the smaller ones. But if you need to get say Berlin NH (I think there is an airport there) or somewhere like that where there is no airline service it is a major win.

      Hell it can even be a major win in something like a Cessna 172 which flys at about 105kts.

      --
      Erlang Developer and podcaster
    4. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      Well, yes. But this was covered in the $8,500 per flight hour or $60,000 per round trip flight that I covered above. Those are figures that you can bank on; if you don't own a jet, and want to use one for a bit, that's what you're charged.

      It probably costs somewhat less per flight hour if you own your jet and use it enough (over 400 flight hours a year, or about three coast to coast round trips a month).

      Most of us would be way better off biting the bullet and flying First Class commercial, but there is definitely something very attractive about jet ownership. And, even if you compare it to first class, you will still save a lot of time. As I grow older and wiser, I start to appreciate that more (not, sad to say, that I am even vaguely close to being able to afford $60,000 flights just yet).

      D

    5. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      You are correct; I found this to be the case in my friend's Mooney - you can beat commercial aviation in a 180knot plane if you're going on short hops up to, say, about a third of the way across the country.

      But the interior resembles an early 1980s Subaru - the same cramped cabin, the same lousy seats and the same flimsy feel. (If you push your finger on the skin of a Mooney, it will flex underneath).

      The King Air would be a lot more comfortable, but as you well know, there's something dead sexy about a jet. However, I should probably consider the Citation X over the Gulfstream V, even if Larry and Steve swear by the latter. It's a bit faster and should be far cheaper to run.

      D

    6. Re:About private jet economics and lifestyle by john@iastate.edu · · Score: 2
      Forget economics, it's all about cool (and saving time).

      If you really want to be cool (er, save time), a jet helicopter is for you... :)

      I can't tell you how unbelievably cool it was to rip down the Charles in Digital's Bell Jet Ranger, and swoop up over Air Force One to land at Logan (Clinton fouling Boston traffic even more than usual is why we got the ride in the first place).

      --
      Shut up, be happy. The conveniences you demanded are now mandatory. -- Jello Biafra
    7. Re:About private jet economics and lifestyle by shaper · · Score: 2


      Sadly, I have yet to fly on a private jet


      I have and I can say without a doubt that being a billionaire would be pretty cool :-) I work for $LARGE_COMPANY which owns many aircraft, including 2 Lear jets for internal corporate use. We have a few flights that we run regularly just because we do it so much that it is cost effective compared to commercial flight. A typical trip would be to drive to our own corporate hanger, walk through to the jet, taxi and take off right on schedule, land and hop out at the jetway (not a terminal) and be driving off in a rental car within a few minutes. Oh, and the leather seating in the Lear is nice, too. After doing this a couple of times, I can say with some authority that the normal delayed, crowded, sardine can commercial flights well and truly suck.

    8. Re:About private jet economics and lifestyle by atubbs · · Score: 1

      For what it's worth, the GV (excepting GV-SP) can actually reach Mach .87, not just .8

    9. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      Whoops, sorry, the spec sheet does say .88. Cruising speed is .80, which is probably why I made that error.

      What's the difference between the V and V-SP? The V-SP's spec sheet isn't available as HTML yet :-(.

      D

    10. Re:About private jet economics and lifestyle by Anonymous Coward · · Score: 0

      jet fuel = kerosene, which is pretty cheap. you might be thinking of AvGas which is super high octaine gasoline and pretty expensive

    11. Re:About private jet economics and lifestyle by Anonymous Coward · · Score: 0

      I can't tell you how unbelievably cool it was to rip down the Charles in Digital's Bell Jet Ranger, and swoop up over Air Force One to land at Logan

      Who the fuck are you, Jane Swift?


      If you're a moderator, and you're not from MA, don't fucking bother.

    12. Re:About private jet economics and lifestyle by ptomblin · · Score: 1

      One of the reason jet "time-shares" like Executive Jets or NetJets are so popular is that it is now quite easy to track an individual aircraft using on-line flight planning tools. If you are the corporate spy for Pepsi, and see that the Coca-Cola private jet has made several trips to Podunk, then you might want to start nosing around Podunk and see why Coke is so interested. But if some corporate time-share jet goes to Redmond and then goes to Armonk, it isn't necessarily MSFT doing something with IBM, it could be any number of other scenarios not involving either MSFT or IBM.

      --
      The next Cmdr Taco duplicate will be ready soon, but subscribers can beat the rush and see it early!
    13. Re:About private jet economics and lifestyle by CrazyJoel · · Score: 1

      Well, celebrities should definitely avoid the little planes and stick to first class. Learn from the Big Bopper!

      --

      Such is the infinite Grace of Popeye.
    14. Re:About private jet economics and lifestyle by Chris+Y+Taylor · · Score: 3, Insightful

      There is more economic benifit to corprate jets than just getting your employees from point A to point B faster. A number of companies use them as sales tools. I once had a supplier fly me and 4 other engineers and technicians from the local airport near our plant to their production facility in a very nice corprate jet so that we could do a supplier audit* on them. They were trying to get a very valuable supplier contract with us, but it hinged on whether we thought they could consistently provide us the quality we required. We approved the company's product and process, and so they got the contract.

      In this case it had very little** to do with the aircraft; we were impressed with their Quality Assurance system at the plant. BUT, if the team sent to audit the plant had consisted of a bunch of muddle-headed artsie craftsies with MBAs then I could easily see them being swayed by the possibility of more such rides, and the free steak dinners, and the liquor, and... I have got to schedule more supplier reviews.

      Anyway, properly used a corprate jet can be a great tool for the sales staff in addition to transporting a companies own people. Winning one big sales account for this company could easily pay the annual maintenance and salaries to support that plane (yes, I know how expensive that is).

      * A little word of advice to younger engineers; never trust a supplier's ISO, QS, or other certification. Remember how much stuff the auditor missed on your audit? They did the same thing for your suppliers. If quality is important then check them yourself.

      ** It did let us take the trip sooner than if we had driven or scheduled commerical flights; so they wound up getting the contract sooner than they otherwise would have been able to. But that comes back to just getting from Point A to B. Plus we were in a better mood at their plant than if we had taken conventional travel and could spend more time there. That allowed us to do a more thorough audit than we probably otherwise would have, but since these guys had a 1st rate facility that helped them more than it hurt them.

    15. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      I strongly suspect the improved mood helps more than the possibility of a stronger audit hurts.

      I know I'd be ready to savage a company if I got there through a standard full economy-class flight. Just as a way to prevent that from happening, the corporate jet probably paid for itself.

      D

    16. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      Interesting, since I checked the costs associated with the timeshare jet and was horrified - you might be better off simply hiring a jet charter service whenever you needed one.

      Anyone know about the pros and cons of that?

      D

      (Amusingly enough, I think the original parent to this discussion is my most popular Slashdot post ever. Obviously a lot of people are interested in corporate jets. This says some really unpleasant things about commercial aviation which, alas, I think are entirely justified).

    17. Re:About private jet economics and lifestyle by Anonymous Coward · · Score: 0
      I too remember when Bill Gates flew coach. Guess that doesn't happen anymore.


      So my question - why are we so concerned with how fast we can fly across the country? Do we *really* need to shave an hour or two off the transcontinental trip time? IMHO this will affect global travel much more. But we already have the Concorde - which is insanely expensive to operate and very *very* complex compared to todays airliners. But those who value their time will pay the extra money. Someday we will figure out a way to make supersonic travel affordable and feasible, but that hasn't happened yet.


      I do agree with the charter argument above - it does make a lot of sense in certain situations. A few weeks ago I had to find a ticket from LA to Washington DC for a business trip, and my dates and times were very much *not* flexible. The price? $2200 for coach. Insane! Plus there are delays getting to the airport, parking, boarding, waiting for luggage, getting a rental car at your destination. Now it's clear why fractional jet ownership is growing at such a fast pace - take off from a smaller airport, fly faster and more direct, land at a small airport with a rental car waiting for you right next to your plane! No lost baggage, no overbooking, no seat assignments, no tickets to lose - and it leaves on *your* schedule.


      Many times even small planes work out better than the airlines. Example: I can rent an airplane here in the LA area, at the nearby general aviation airport, and fly to Las Vegas in about 1 1/2 hours. If I take two friends along and share the expenses, we pay about the same as the 'Super Saver' airline fare - while flying on *our* terms. And when you factor in the time needed to drive to the airport where the airline flies out of, check-in with baggage, board, and wait to push back, the small Cessna would already be halfway to Vegas.


      So what if you don't rack up a few frequent flyer miles? The inflight service is just as good!

    18. Re:About private jet economics and lifestyle by Chris+Y+Taylor · · Score: 1

      I understand your comment, but in this case, if the supplier sent us bad product it could screw up one of the production lines and I would be the person who would have to straighten it all out. It was very much in my best interest (and the rest of the team) to give the suppliers involved the most objective analysis possible. No matter how bad our mood, I doubt we would have taken it out on the supplier simply because it was personally very important to us to find a top notch supplier (failing to do so would make our work far more difficult for years to come). Plus we were a bunch of engineers, and therefore presumably able to differentiate between "I'm unhappy" and "What's the point in running a test if you don't have any standards you are testing to? Is this place run by monkeys or something?" Less developed forms of life (like Pointy Headed Bosses) may not be able to make that distinction.

      But the supplier didn't know that.

      I'm sure in most cases you are right, a person's mood is very important in such activities (even when it shouldn't be).

    19. Re:About private jet economics and lifestyle by kettch · · Score: 1

      hell, if i had as much money as bill or larry, I'd be tempted to buy other people jets so that I wouldn't have to waste time flying around to meet with them.

      If i did have to buy one for myself, i'd buy two or three, in case one got dirty, or somebody spills a drink on the upholstry.

      --
      Opportunities multiply as they are seized. --Sun-Tzu
    20. Re:About private jet economics and lifestyle by warmenhoven · · Score: 2, Informative
      The long and thin design also might not be as comfortable as the Gulfstream.


      Er. The Gulfstream V is a Gulfstream IV with an extended fuselage. The Gulfstream IV is somewhat narrow, and they haven't widened it because they want to keep the larger windows. (And when I say larger, I mean larger; the windows are ovular and about 2 to 2.5 times the size of the normal ones you see on commercial jets.)


      The larger windows are part of an old series of planes with the FAA used to allow but have since grandfathered. You can't use the larger windows on new planes unless if you're using the exact same fuselage as was previously allowed; extending the fuselage was allowed, however, hence the Gulfstream V, which has a larger capacity and I think also more powerful engines, but is just as narrow as a Gulfstream IV. But what a view out of those windows; when you're cruising at 6-12 thousand feet over the coastline of the pacific, it's absolutely gorgeous.


      There's other advantages to owning a private jet, in addition to the time advantage, but money isn't one of them. Not having to deal with all the other passengers is a big one. Having your own private movie system, complete with DVD players and VCRs and screens for each seat, is a nice perk. Being able to see flight information, like how high you are, what your ground speed is, and ETA is especially nice. On-board private fax, modem, ethernet, A/C outlets, etc. etc. But like I said, you won't be saving money by having your own jet, no matter how much you travel. Feul, landing fees, storage, maintenance, crew, all add up. Not to mention the millions that you pay just to own the jet. But fortunately, most private jet manufacturers artificially inflate the price over the years, to create inflation. With light to moderate use you'll get most of the cost of the jet back when you sell it, assuming you've paid for regular maintenance, of course.


      Most private vehicles tend to be bad investments unless if you're using them to sell rides (e.g. busses, taxis, commercial airlines, trains, etc.). It's much more economical to go commercial than to buy a private jet, no matter how much or how little you use it (similarly, it's much more economical to ride the bus than to own a car). But the time savings and comfort level are phenomenal.

      --

      -----
      "A man is judged by his every word." -RW Emerson
      "They misunderestimated me." -GW Bush
    21. Re:About private jet economics and lifestyle by MtViewGuy · · Score: 2

      I think in sum total the reasons why the wealthy often own private jets are as follows:

      1. Much higher flexibility in terms of travel schedules. By no longer being tied down to airline schedules they can go anywhere in the world often at a few hour's notice. With the arrival of the long-range Gulfstream V and Bombardier Global Express business jets, most of the world is easily within one fuel stop of anywhere in the continental USA. For example, if Apple CEO Steve Jobs needs to be in Singapore on business, he could fly his private Gulfstream V there from its likely home airport (San Jose International Airport) with only one fuel stop in Japan.

      2. Private jets offer security and privacy not possible with commercial flights. Many famous Hollywood celebrities now fly private jets to avoid the security headaches to moving them through commercial airport terminals. Besides, many Hollywood celebrities have their own private jets, too. Think about it: would you want to subject a star like Michael Jackson to the public spaces of airport terminals and all the security headaches that implies?

    22. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      I'm developing a software product right now, and I've found that the most intense discussion between me and my future customers is not about the functionality of the thing, which they love, but the colours that are being used.

      In that context, sending out a private jet to pick potential customers up seems like a bloody good idea. And I'm sure there are plenty of PHB-type customers all over the place.

      Not, of course, meant as any implied criticism of your team, which I'm sure does a great job. But, surprising as it may seem to technical people, that's not how things are sold. Big-ticket items are normally sold based on relationships between people, and if a jet ride or two can bond even one or two accounts to the company, it will have paid for itself.

      D

    23. Re:About private jet economics and lifestyle by ryanwright · · Score: 2

      I work for $LARGE_COMPANY which owns many aircraft

      Likewise. I haven't taken a trip on my company's Learjets yet, but have flown in their King Air a number of times. I've also flown commercial when their aircraft weren't available, and the differences are amazing.

      Commercial: Arrive at airport. Check in. Xray luggage. Wait half an hour if you time it right. Whoops, airplane is behind schedule. Wait another hour. Board. Strap yourself into flimsy uncomfortable seat with 80 other people. Fan yourself with magazine because it's too damn hot in there. Wait another half hour. Takeoff. Eventually, land at another airport, wait 3 more hours and repeat above procedure. Arrive at destination.

      Private: Arrive at airport. Board plane immediately. At worst, wait 5 minutes because you got there early. Hand baggage to pilots, climb aboard and get lost in the plush leather seating. Take shoes off, lean seat back and put your feet up on the seat in front of you. Temperature is perfect. If not, tell pilots to turn the AC on and get instant gratification. Hungry? Grab some peanuts, chips, doughnuts, or whatever. Thirsty? If you can think of it, they've probably got it, including hard alcohol. Enjoy the luxury and arrive at destination refreshed and ready to go.

      Nothing compares to flying in a nice, private aircraft. The trips I've taken were $600 commercial. It costs them ~$1500 to fly the King Air on that route including fuel & pilots. So if three people fly (the plane holds 9 plus pilot/copilot) the company saves money. Actually, if one person flies they save money, because it's a 1 hour (one way) direct trip. Commercial takes 4+ hours (one way) and time is money.

      --
      -Ryan, with the unoriginal sig
    24. Re:About private jet economics and lifestyle by Zeinfeld · · Score: 2
      Larry Ellison, on the other hand, will buy the first one available, the microsecond it comes up.

      And then sue San Jose Airport to force them to let him land or take off at any time of the day or night he damn well pleases.

      You missed one significant part of the finances of private jet ownership, hiring it out. Very few corporate jet owners make enough use of the thing to justify the cost and hassle. If you think waiting in an airport is bad then try buying a plane - hint maintenance, insurance, employing 2 pilots etc.

      The reason it makes sense is that you can lease your private plane to a 'management company' that handles all the tedious stuff for you and in addition leases the plane out to other people when you are not using it. If you only use the plane occasionally it can be a lucrative source of income.

      --
      Looking for an Information Security student project suggestion?
      Try http://dotcrimeManifesto.com/
    25. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      Well, in my case, I actually had a need to fly across the country, and it looks likely to be an increasing need over the next few months. So naturally I concentrated on that area, which makes the jet look good.

      The small private plane looks real good to get to Vegas, just as you say.

      D

    26. Re:About private jet economics and lifestyle by Chris+Y+Taylor · · Score: 1

      I agree.

      And I am quite aware of how lucky we were that Engineering got to approve the suppliers instead of Purchasing. You may be happy to know that sometimes even very large contracts get made on technical merit. Not that we didn't have to fight for it (and undersell the potential cost savings to make sure the project didn't get hijacked... nobody said engineers have to be politically naive).

    27. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      Ah, that must be why most jets don't have company logos on them - it makes it impossible for them to be chartered without giving the game away.

      D

    28. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      Is there any way to get onboard Internet access on your private jet? What sort of systems are there?

      I suppose at a bare minimum there should be Inmarsat B, a worldwide but incredibly pricey system.

      D

    29. Re:About private jet economics and lifestyle by shogun · · Score: 2, Funny

      The aforementioned Citation X is about 100 knots (or 25%) faster than a typical commercial flight, and you can arrive at a general aviation airport about 15 minutes before takeoff.

      So you can keep taking off and landing and move further and further back into the past? Now thats a neat plane, guess it doesn't matter how fast it actually moves through the air if its got a flux capacitor fitted.

    30. Re:About private jet economics and lifestyle by daviddennis · · Score: 2

      That one gave me a laugh.

      You'd arrive at the airport you'd be departing from 15 minutes before takeoff, of course. I'm sure you knew that already, though.

      D

    31. Re:About private jet economics and lifestyle by shogun · · Score: 1

      Yeah I know, but how its written it, it can be interpreted either way so I made the most of it.

    32. Re:About private jet economics and lifestyle by csbruce · · Score: 2

      and you can arrive at a general aviation airport about 15 minutes before takeoff

      Wouldn't that require faster-than-light speeds, rather than just faster-than-sound?

  20. If it ain't broke... by Robber+Baron · · Score: 2

    ...you know the rest. Besides, pilots are like any other user. They get used to a certain type of display and moan like hell if it's changed.

    --

    You're using her as bait, Master!

  21. What 'bout us? by manon · · Score: 1

    How come companies make tech's like us always economy?
    That way we, man and women that have most right to it, will never fly supersonic.
    I bet those MBA people will!

    --
    42 + 1 = 42
    1. Re:What 'bout us? by Anonymous Coward · · Score: 0

      well, im always in executive class. ;)

    2. Re:What 'bout us? by manon · · Score: 1

      People, there actually IS a MBA guy reading Slashdot ;)

      --
      42 + 1 = 42
    3. Re:What 'bout us? by Anonymous Coward · · Score: 0

      The words are English, but they don't make any sense...

      Anyone willing to translate?

    4. Re:What 'bout us? by RetryIgnore · · Score: 1

      I bet a tech with an MBA reading /. would really p*ss people off... hehe.. oh wait, that's me. All that and a chick too. Now where's my private supersonic jet? =)

    5. Re:What 'bout us? by luckykaa · · Score: 1

      Solution - Work for microsoft. Admittedly, you will still fly economy, but at least you will know that so does the boss.

  22. Re:Concorder by SamBeckett · · Score: 0, Troll

    The gap between rich and poor is just getting w-i-d-e-r.

    So what is your solution to prevent that from happening? Is it....

    • Communism?
    • Spend your life making zero money developing GPL'd software?
    • Make a living supporting GPL'd software? Sounds fun to me.
    • Complaining about it on Slashdot?

    Or, would you rather...

    • Create some commercial niche software that sells at $15k+ a pop?
    • Work a blue collar job like your parents did to buy you your first CoCo 2?

    The real reason that the so called "gap" is getting wider is because of socialist/liberal policies that make the average joe-schmoe think he deserves everything. They think "they deserve" the Federal government to use it's mighty powers to regulate the decaying power situation in California. They think "they deserve" to have Company XYZ release product WJK under the GPL just because they want it, can't afford it, etc.

    The people that make money are intelligent, ambition driven and don't expect jack squat from anyone. If they want something, they find a way to do it-- and I'm not talking about getting together with 9,000,000 other "soon-to-be-rich" people and petitioning Steel Company R to ship their orders at a discount; they use whatever resources they have, make deals/contracts/etc (however shady they may be), pull every string they can think of and get it done.

  23. The regulation on sonic booms by mr_death · · Score: 5, Informative

    The government takes a dim view of sonic booms over the US land mass.

    http://www.access.gpo.gov/nara/cfr/cfrhtml_00/Ti tl e_14/14cfr91_00.html

    91.817 Civil aircraft sonic boom.

    (a) No person may operate a civil aircraft in the United States at a true flight Mach number greater than 1 except in compliance with conditions and limitations in an authorization to exceed Mach 1 issued to the operator under appendix B of this part.

    (b) In addition, no person may operate a civil aircraft for which the maximum operating limit speed MM0 exceeds a Mach number of 1, to or from an airport in the United States, unless --

    (1) Information available to the flight crew includes flight limitations that ensure that flights entering or leaving the United States will not cause a sonic boom to reach the surface within the United States; and

    (2) The operator complies with the flight limitations prescribed in paragraph (b)(1) of this section or complies with conditions and limitations in an authorization to exceed Mach 1 issued under appendix B of this part. (Approved by the Office of Management and Budget under control number 2120-0005)

    --
    It's Linux, damnit! Pay no attention to renaming attempts by self-aggrandizing blowhards.
    1. Re:The regulation on sonic booms by Ralph+Bearpark · · Score: 2

      Ah, but "Bill and his mates" are above the law, aren't they?

      Regards, Ralph.

  24. For that kind of money by gelfling · · Score: 2

    I could have anyone in the world kidnapped and brought to my secret Caribbean base while coffee colored lesbians peel me grapes and fan me.

    1. Re:For that kind of money by Anonymous Coward · · Score: 0

      I am intrigued, sir, by your views and would like to subscribe to your newsletter.

  25. Eye Candy by Kozz · · Score: 5, Interesting

    Take a look at a photo of a sonic boom.

    And for the record, the Lameness filter sucks.

    --
    I only post comments when someone on the internet is wrong.
    1. Re:Eye Candy by David+Ishee · · Score: 3, Insightful

      This isn't necessarily a picture of a sonic boom. If the aircraft is traveling close to the speed of sound, the acceleration of the air over the wing and around the fuselage will start forming a shock wave (but you won't hear a sonic boom yet). If the atmospheric conditions are right, the rapid decrease in pressure behind the shock wave which causes the air temperature to drop will cause the moisture in the air to condense into fog.

      I've seen this happen to an F-18 at an air show on a high speed pass by the crowd and it was pretty cool. You saw the cloud of fog flash like a strobe light a couple of times, but it wasn't stable.

      --
      Your password has expired, please login to change it.
    2. Re:Eye Candy by Fishstick · · Score: 3, Interesting
      >This isn't necessarily a picture of a sonic boom

      You are probably technically correct, but in this case, the photographer took this picture at the exact instant the sonic boom happened:


      Through the viewfinder of his camera, Ensign John Gay could see the A/F18 drop from the sky as it headed toward the port side of the Aircraft Carrier Constellation at 1,000 feet. The pilot increases his speed to 750 mph, vapor flickering off the curved surfaces of the plane. At the precise moment of breaking the sound barrier, 200 yards form the carrier, a circular cloud formed arourd the Hornet. With the Pacific Ocean just 75 feet below the aircraft being rippled by the aircraft's pass, Gay hears the explosion of the sonic boom and snaped his camera shutter once. "I clicked the same time I heard the boom and I knew I had it." What he had was a technically meticulous depiction of the sound barrier being broken on July 7, 1999, somewhere on the Pacific between Hawaii and Japan. Sports Illustrated, Brills Content, and Life ran the photo.

      The photo recently took first prize in the science and technology division in the World press Photo 2000 contest, which drew more than 42,000 entries worldwide. Because Ensign Gay is a member of the military he was ineligible for the cash prize. "In the last few days, I've been getting calls from everywhere about it again. It's very humbling." Gay, 38, manages a crew of eight assigned to take intelligence photographs from the high-tech belly (TARPS POD) of an F-14 Tomcat. In July, Gay had been part of a Joint Task Force Exercise as the Constellation made its way to Japan.

      Gay used his personal Nikon 90 S, set his 80-300 mm zoom lens on 300 mm, his shutter speed at 1/1000 of a second and the aperture at F5.6. "I put it on full manual," Gay said. "I tell young photographers who are into automatic everything, you aren't going to get that shot on auto. The plane is too fast. The camera can't keep up."

      At sea level a plane had to exceed 741 mph to break the sound barrier.
      The change in pressure as the plane outruns all of the pressure and sound waves in front of it is heard on the ground as an explosion - the sonic
      boom. The pressure change condenses the water in the air as the jet passes these waves. Altitude,wind, speed, humidity, the shape and trajectory of the plane - all affect the breaking of the barrier. On July 7 everything was perfect. "You see vapor flicker around the plane. it gets bigger and bigger, then BOOM - it's instantaneous. One second the vapor cloud is there, the next it's gone."

      --

      There is much cruelty in the universe, John.
      Yeah, we seem to have the tour map.

    3. Re:Eye Candy by Anonymous Coward · · Score: 0

      That wouldn't have been at the Great New England Air Show (Westover AFB), by any chance? I can't remember if I saw that at the '98 or '00, but it was simply amazing!

    4. Re:Eye Candy by Anonymous Coward · · Score: 0

      moron. the sonic boom doesn't happen on the plane, it happens on the ground.

      -0->
      /
      /
      /
      /
      /
      /
      boom!

    5. Re:Eye Candy by EasyTarget · · Score: 1

      Naah, It's just an F14 in a tutu (sounds like a Smiths song).

      --
      "Oops, I always forget the purpose of competition is to divide people into winners and losers." - Hobbes
    6. Re:Eye Candy by cynthetik · · Score: 1

      "I clicked the same time I heard the boom and I knew I had it." What he had was a technically meticulous depiction of the sound barrier being broken on July 7, 1999, somewhere on the Pacific between Hawaii and Japan. Sports Illustrated, Brills Content, and Life ran the photo...

      What he had was a very poor understanding of elementary physics. If he took the photo after he heard the boom he is recording the aftereffects, not the actual breaking of mach 1. It's that ever so slight discrepency between the speed of sound and speed of light.

      --
      .sig .sig .sputnik
  26. are we 'defending' MS for no reason now? by ebbv · · Score: 1


    it was just a comment toward rich bastards in general, you twit.
    ...dave

    --

    Think different? I'd be happy if most people would just think...
    1. Re:are we 'defending' MS for no reason now? by snwbd4life · · Score: 1

      Who cares!!! if you were rich you wouldnt CRY like little babies about a jet you would purchase if you could......Need a Tissue?

  27. The +Mach 1 Club. by Macfox · · Score: 0, Offtopic

    Gone is the Mile high Club.

    Enter the Mach 1!

    "Boom... Oh!... Darling!... "

    Rob

    --
    Area51 - We are watching...
  28. Re:What happened to "Getting there is half the fun by Anonymous Coward · · Score: 1, Funny

    Paul Allen comissioned a barge to land his helicopter on - because it was on water, it skirted the local laws banning helicopters. Rumor has it that some guy with home-made model rockets put an end to that idea.

  29. Here's a picture ... by JoeGee · · Score: 1

    on Boeing's site. The Boeing Sonic Cruiser was unveiled a few months ago.

    From what I gather the Boeing offering is not longer than Concorde. It DOES have a longer range. It flies at Mach .98, at roughly 40,000 feet in altitude, and can be configured to fly non-stop from London to Sydney.

    The images at this point in time are still concept but I like the look. The dual inswept tail fins, and the dual canards at the front along with the delta wing make this beastie look really sleek. :)

    --

    Get off my virtual lawn, you damned virtual kids!
    1. Re:Here's a picture ... by mskfisher · · Score: 1

      i do like the look of the cockpit - it just screams "obliterated no matter what."
      they better have a good location for the black box, because there won't be a pilot around to remember what went wrong. :)

      --
      0x0D 0x0A
    2. Re:Here's a picture ... by JoeGee · · Score: 1

      Aren't all flight-certified passenger aircraft above a certain seating limit now required to have duplicate black boxes/flight recorders in separate areas of the plane? Not that it really matters -- if this puppy plows into a mountainside at Mach .98 for some reason I suspect the biggest pieces they'll find will be the size of a small coin.

      --

      Get off my virtual lawn, you damned virtual kids!
    3. Re:Here's a picture ... by Chris+Y+Taylor · · Score: 2, Interesting

      The Boeing Sonic Cruiser is a brilliant ploy to counter Airbus's superjumbo aircraft plans. The Sonic Cruiser can be targeted to the much more profitable First Class, Executive Class, and Business Classes. I think Boeing hopes that the airlines which buy the superjumbos will be stuck hauling the low profit "cattle car" coach class passengers only (and all the other airlines will rush to place orders for more Sonic Cruisers). But, those supersonic business jets would seem to cut into the Sonic Cruiser's market share. And companies like Southwest seem to be getting along fine targeting the low end passengers. It will be interesting to see whose business strategy pays off.

    4. Re:Here's a picture ... by Anonymous Coward · · Score: 0

      If it's only going Mach .98, it won't be overtaking any Concordes. Concordes cruise at Mach 2.04.

    5. Re:Here's a picture ... by JimPooley · · Score: 1

      Looks like something out of Thunderbirds.

      And the engine/fin combinations are strangely reminiscent of the SR71.

      Now, if they could make a passenger jet go as fast as the SR71...!

      --

      "Information wants to be paid"
  30. Filler Article by dohcvtec · · Score: 1

    Technology marches on, and to me it seems inevitable that supersonic transport will eventually become available to businesses and individuals. According to the article this technology will be available in 5-10 years' time. Isn't that what people were already thinking 10 years ago? And have we seen it yet? I'll be interested in a story on this technology when it is more than vaporware. After all, it's really easy to idly say that just about _any_ technology is about 5-10 years away from ubiquity.

    --
    -- Never hit a man with glasses. Hit him with a baseball bat.
  31. arrogant dumbass yanks by Anonymous Coward · · Score: 0

    Fucking ignorant American imperialist running-dog slobs, we use Pesos up here, not dollars.
    Sheesh, you think the whole world revoles around around you, eh?

  32. Didnt want concorde by Anonymous Coward · · Score: 0

    Didn't they bring in those laws, cos they were pissed @ Britain & France making this plane, so decided to scupper it @ a time when people werent too bothered about environmental laws?

    1. Re:Didnt want concorde by Anonymous Coward · · Score: 0

      Good thing you used all those "@" symbols. Saves you from the exhausting ordeal of having to type "at" in its ponderous entirety.

  33. One crash means a supersonic age is impossible? by alist · · Score: 2, Interesting

    "Engineers say the baby Concordes will herald a new supersonic age, something that seemed impossible when the Air France Concorde crashed outside Paris just over a year ago."

    Maybe it's just me, but I recall that the Concorde flew supersonically for years before one of them crashed, and the one that bit the dust was due to metal on the runway, not a major design flaw. When the first automobile crashed, did we mourn the end of the age of the car?

    1. Re:One crash means a supersonic age is impossible? by istartedi · · Score: 2

      It wasn't even really the Concorde's problem either. A few years ago I went to an air show on the local base. All around, there were all these propoganda signs warning about the evils of FOD. I asked my Dad what FOD was, and he didn't know. Eventually, we discovered that it's military speak for Foreign Object Damage. The military is very sensitive to the fact that debris such as sticks, nuts and bolts, sheet metal, or seagulls can cause damage to engines. They do everything they can to prevent that from happening.

      The Concorde ran over a hunk of metalic debris on the runway which got thrown up by the wheels and punctured the engine. In other words, it got FODed. The "fix" for the Concorde involves wrapping critical components in Kevlar. They really ought to have had a FOD education campaign like the US military.

      --
      For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
    2. Re:One crash means a supersonic age is impossible? by Anonymous Coward · · Score: 0
      but I recall that the Concorde flew supersonically for years before one of them crashed, and the one that bit the dust was due to metal on the runway, not a major design flaw.

      Actually, the metal on the runway was just a convenient excuse to put the heat (temporarily) on someone else. The lamestream media lost interest after that, but Aviation Week and Space Technology have reported that maintenance work performed just prior to the accident omitted a critical part from the landing gear.

      The resulting wobble (and pull to the left, which was recorded on the FDR) probably caused a heat build-up in the tire (which normally operates near design limits), precipitating the blow-out before the errant piece of metal on the runway was ever encountered. The shrapnel from the tire explosion punctured an fuel tank and the rest was history.

      Yes, there was at least one major design flaw, and they are replacing the tires with ones that don't launch high-speed projectiles into a vulnerable fuel tank.

    3. Re:One crash means a supersonic age is impossible? by mimbleton · · Score: 1

      FOD is a different thing as it would result in engine damage which generally is NOT considered fatal ( at least for most of commercial planes which do have more than one engine).
      The Concorde ran over piece of metal that punctured fuel tanks and cause fire which is as dangerous as one can get.

  34. Bill who? by Fizzlewhiff · · Score: 1

    I read the damn thing twice trying to figure out who the hell Bill is. Why do people need to add things to articles that are not there? Isn't that what Katz's columns are for?

    --

    'Same speed C but faster'
  35. missed the point by joss · · Score: 3, Insightful

    Concorde can fly perfectly well across land, but Boeing successfully lobied US government to ban it from being used across continental USA.

    This came as a rude shock and completely fucked the economics of concorde which was explicitly designed for long-haul, eg LA-London flights. It's the main reason so few were built.

    Morons - what did they expect ? The US will always protect it's own corporations from competition if it can get away with it. This occurs at the expense of it's citizens, but nobody cares about that. Just like any other nation of course, but it's a lot harder to bully the US into accepting competition than smaller countries.

    --
    http://rareformnewmedia.com/
    1. Re:missed the point by RocketRay · · Score: 2, Interesting

      Obviously, you've never been near a Concorde as it flies.

      I was in London at Kew Gardens in 1997, right beneath the "draining toilet bowl" pattern for Heathrow, and a Concorde was coming in. At 10,000 feet, the Concorde was louder than a 747 at 2,000. When the Concorde came in at 2,000, it was so loud you had to put your hands over your ears.

      Furthermore, the Concorde *can't* fly from London or Paris to Los Angeles. It burns as much fuel as a 747 just to get to New York, and it carries only 100 people. The plane was a money-loser when it was built, and everybody knew it. It was built purely for the prestige which, arguably, it has in abundance even though it crashed & burned last year.

    2. Re:missed the point by LeftHanded · · Score: 1

      The US government didn't ban overflights of Concorde itself. The ban was on _supersonic_ overflights. Unfortunately, when flying at subsonic speeds, the Concorde's engines change from somewhat inefficient to gross fuel sucking pigs. Flying to inland airports (at one point there was service to Houston) is thus not economically sound.

      --
      I think...I think it's in my basement. Let me go upstairs and check. -M.C. Escher (1898-1972)
    3. Re:missed the point by Jeffrey+Baker · · Score: 2

      In what way is Houston inland?

    4. Re:missed the point by LeftHanded · · Score: 1

      'Inland' was perhaps a bad choice. 'Not on the East or West coasts [of the US]' is more what I was shooting for.

      --
      I think...I think it's in my basement. Let me go upstairs and check. -M.C. Escher (1898-1972)
    5. Re:missed the point by mr_death · · Score: 1

      Um, no. On the London-JFK run with stiff headwinds, the Concorde sometimes has to land at Boston due to low fuel. Given that, there's no friggin' way it would make it to Los Angeles non-stop, even using a great circle route.

      --
      It's Linux, damnit! Pay no attention to renaming attempts by self-aggrandizing blowhards.
    6. Re:missed the point by Anonymous Coward · · Score: 0

      Houston is inland. That is why we dug an overgrown ditch called the Houston Ship Channel to the water so we could have a port. Moron

  36. length no impact on boom by slide-rule · · Score: 1

    Color me confused, but the whole behavior of a sonic boom is that "information" (such as the length of the craft) cannot travel upstream across shock waves, so the nose "boom" won't know how long the aircraft is. Besides, it is the Mach number of the craft in flight that determines the angle of the primary nose shock, not the geometry of the nose (or remainder of the craft) itself. So I figure the story has to be horribly mangled from the original source at this point to imply that stretching the craft can even "flatten" the generated shock waves. Very little to see here folks.

    1. Re:length no impact on boom by Village+Idiot · · Score: 1

      The mach number in flight is not the only factor involved in determining the shock angle. The deflection angle of the body which is being subjected to supersonic flow also plays a role in determining the shock angle. For example if the incident freestream is mach 2 and a wedge with a half angle of 10 degrees was considered then the shock wave angle would be 39.2 degrees. However if we still have mach 2 flow acting on a wedge with a half angle of 20 degrees we end up with a shock angle of 53 degrees. Mach number also affects it as if we take the same wedge with the half angle of 20 degrees and subject it to a mach 5 flow the shock angle becomes 2.9 degrees. (As i cant be bothered grabbing values myself off the graphs these are shamelessly lifted out of examples in John Anderson's book "Fundamentals of Aerodynamics" which is quite a good textbook imho).

  37. Re:Concorder by Kryptonomic · · Score: 2, Funny
    The people that make money are intelligent, ambition driven and don't expect jack squat from anyone.

    Oh, stop flattering yourself.

    I'm well off. I've got a PhD in Physics and I'm currently a founding member of a semiconductor spin-off firm that's about to make profit for the first time next year.

    Yet, I've got no problem when it comes to paying my 30% income tax that's being used to pay for the excellent public health care, public transportation and public services. As a result there's no population living below the poverty line, the unemployment level is 5.7%, literacy out of total population is 100% and I believe this achievement is certainly worth defending! If it means accepting that there will be people who'll abuse the system, so be it. It's the same thing as with the western legal systems where it's preferable that a criminal escapes punishment than an innocent gets punished. To my mind, protecting and helping the less fortunate is a worthwhile goal even if it means that some people will abuse this generosity.

    Is it just because my mindset, being a native to a northern European country where the function of the society still is seen as "to take care and protect the weak" instead of "to protect the interests of the wealthy", is so different?

  38. Learn more by Blackjax · · Score: 3, Informative

    This article had an annoying lack of details. These stories have more information on why this is being explored now:

    aviationnow
    and
    savannahmorningnews

  39. this reminds me of .. by platypus · · Score: 1

    ... an interview I read with Shaquille O'Neal in a local magazine (shoddy translation by me).
    Obviously having a private jet can be topped by simply not using it:

    [...]
    O'Neal:[...] Be young, have fun!
    Do you wanna know how I travelled to germany?

    Reporter: In your private jet?

    O'Neal: No, in a Boing 747. We bought all tickets and the front of the plane hang down somewhat, because we all sat in first-class and everything else was empty. That's the way I wanted to live and so I do.

    1. Re:this reminds me of .. by The+Grassy+Knoll · · Score: 1

      >Boing 747

      If Concorde had been made by Boing, maybe it would have bounced on the runway in Paris...?

      Rob

      I thank you...

      --
      They will never know the simple pleasure of a monkey knife fight
  40. Re:B-52H Avionics (or lack thereof) by wufpak · · Score: 2, Informative

    The B-52H [bombnav.org] does have a cool looking CRT in it, but we are NOT talking glass cockpit here. All of the instruments are conventional dials (and, with 8 engines, that's a lot of dials). The CRTs are merely used to see outside.

    Of course, seeing outside the aircraft is pretty important, too. Especially when you consider that, when these aircraft take off in a nuclear scenario, all the cockpit windows are covered with heavy (and opaque) thermal curtains. The only way the crew can see out is by looking at the CRTs.

    For those who might be curious, the B-52H has two cameras mounted just below the nose: an infrared camera, and a visible-light camera. The view from those cameras is displayed on the cockpit CRTs, along with radar-derived terrain-avoidance data. Very handy for skimming the ground at night over hostile territory, with intermittent thermonuclear detonations occuring in the middle distance ...

    Now, for a truly cool-looking glass cockpit, check out the B2. Yours for only $1,999,999,999.95 [Prices are MSRP including delivery, plus any options. Your final price may vary, contact your dealer.]

  41. YUO = FAG0T by ebbv · · Score: 1


    please replace that non-functional lump of tissue in your cranium out and replace it with a bowl of tapioca. the results will be better for all of us.
    ...dave

    --

    Think different? I'd be happy if most people would just think...
  42. Boeing-Su by Wyatt+Earp · · Score: 2

    Way back when I was in High School and the Cold War ended, there were articles in Aviation Leak...err...Week and Popular Mechanics about how the NeXT Big thing was going to be corporate jets that were transonic.

    Rumor at the time was that Boeing and Sukhoi were working with Lear on a supersonic 40 seat corporate jet, and they had 50 confirmed orders.

    So this kind of thing is kind of old news.

    I'd expect Boeing to ship the Sonic-Crusier cheaper and more flexable than any other corporate type jet, even thought the article mentions Boeing. I'd see the Sonic-Cruiser being the replacement for the 737 and 727 in these circles.

    1. Re:Boeing-Su by dohcvtec · · Score: 2, Interesting

      Reminds me of watching "Beyond 2000" in the late 80's when they had visions of supersonic flight being common by the mid-to-late 90's. It's been nothing but food for thought ever since the Concorde went into service.

      --
      -- Never hit a man with glasses. Hit him with a baseball bat.
  43. Re:Concorder by Anonymous Coward · · Score: 0

    I think we should end this problem once and for all and simply eat the poor.

  44. This is what I've been waiting for. by dinotrac · · Score: 2, Funny

    Sure, I've been tempted by corporate jets in the past, but they were never quite right for me.
    Too slow or too big or too cramped or too something or the other.
    These new supersonic jets sound like just the ticket.

    Wonder how much I can get for my old Plymouth Laser in trade? It needs a new clutch, and the radio is, um, random, but it runs ok if you ignore the oil smake starting out.

    Hope they'll give me plenty, because I'll need to keep the monthly payments down.

  45. Supersonic GPS by Anonymous Coward · · Score: 0

    The US dropped GPS-guided 2000-pound bombs from 30,000 feet onto the Chinese embassy in Belgrade. I'd say GPS works pretty good at high speed.

    Unless, of course, your GPS manufacturer has "voluntarily" crippled his receivers so that they can't be used as components in (e.g.) missile targetting systems.

    1. Re:Supersonic GPS by terrymr · · Score: 1

      I've seem custom built GPS units used on board non-commercial space launch attempts that will not acquire satellites at speeds > mach 1.

      Chances are it a feature of 'retail' GPS chipsets rather than a limitation of the system.

  46. that's not funny by Anonymous Coward · · Score: 0

    You're probably some damn effeminate Brit, pretending to be a nasty American parodying Canadians and making a damning slip. Pure CONTELINPRO FUD.

  47. I wouldn't be so hard on Steve by daviddennis · · Score: 2

    I would still consider Apple a major turnaround, even if the stock doesn't reflect that at this point. Just look at them compared to, say, the equivalent PC makers. They are making money where everyone else is losing their shirts. Since we're in a downturn, the stock isn't doing great, but for the mid to long term, I'd count Apple as a better bet than its competition.

    And quite honestly, I think that's worth a jet. Did you know Steve has to pay for his own maintenance? That surprised me a bit, since that's one of the most beneficial things to have under a corporate umbrella.

    D

  48. Re:Concorder by Anonymous Coward · · Score: 0

    Yeah, what have the Romans ever done for us?

    Maybe some people just wanted a fair day's pay for a fair day's work? I mean, why should someone who works their butt off 10 hours a day, 6 days a week be paid a fraction of what some fat-cat who attends a board meeting two days a month gets paid?

    Just because some people are born with a silver spoon in their mouths, or are lucky, does not mean that those who dont deserve to live in poverty, regardless of how hard they work. Fucking libertarian fascist.

  49. Impressive by Anonymous Coward · · Score: 0

    However, because the dumb people have ganged up on you, you have been voted out - You ARE the weakestlink!

    bye!

  50. They should have tried to impress Putin instead... by annenk138 · · Score: 1

    The remaining fleet of Tu-144 would be a much better choice -- they are more streamlined toward speed which makes them about 40% faster than the Concordes. I presume they would cost quite a bit less as well.

  51. Speed costs money... by Anonymous Coward · · Score: 0

    How fast can you afford? I work for a jet engine manufacturer. We've just announced we expect to spend between $900-$990M (US) in the next 10 years to develop the engine for Boeing's commercial supersonic jet.

  52. I Love Jet Noise by Uberwangen · · Score: 1

    I live near Oceana NAS. And the roar of fighter jets flying overhead is commonplace. People that live there complain about it. My thoughts on it are, "Well, you live near a fighter base. This is something that I'm sure you knew about when you moved there and if it's that big a deal you can move elsewhere."
    But what always brings a smile to my face is that when I drive around town, I often see cars with bumperstickers on their rears proudly proclaiming, "I Love Jet Noise."

    1. Re:I Love Jet Noise by Anonymous Coward · · Score: 0

      I hate to break the news to you, patriotboy, but Jet Noise is the name of a local stripper. Don't tell their wives. The capitalization should've been a hint.

      Of course, this is all just conjecture.

    2. Re:I Love Jet Noise by Gryffin · · Score: 1

      I know watcha mean. I used to live about a mile from NAS Miramar in San Diego (as made famous in that silly "Top Gun" flick).

      I amazed me how the Yuppie Scum would move up there, and then b1tch about the jet noise. A local entrepreneur madea tidy sum selling bumper stickers to us locals, reading "That's Not Jet Noise, That's the Sound of FREEDOM!"

      --
      Learn from the mistakes of others. You won't live long enough to make them all yourself.
    3. Re:I Love Jet Noise by Uberwangen · · Score: 1

      That can't be right, I was under the impression that Va Beach doesnt even have strip clubs. Just girls in bikinis. Not even pasties!

  53. Re:What happened to "Getting there is half the fun by alexjohns · · Score: 2
    If I have a week of vacation, I'm not going to spend 6 of those days traveling. And have you checked train prices? Just as expensive as flying, if not moreso. Can't see it.

    Although I've always wanted to ride on the Trans-Siberian Railway. Or the Orient Express. And from what I understand, if you're sight-seeing in Europe, a Eurail pass is hard to beat.

  54. Bill Gates Flies Coach by dialtone69 · · Score: 1

    Neither Microsoft nor Bill Gates owns a corporate jet, and Bill still flies coach on commercial airlines. So does everyone else in the company for that matter--unless you either pay the difference yourself or use your frequent flier miles. The only exception is international flights more than 8 hours long, in which case the company will (grudgingly) pay for business class.

    "Bill and his mates" do, however, allow themselves one excess--they get to ride the executive shuttle buses around campus. These buses go directly to the execs' destinations, rather than making stops along the way. When your time is scheduled in 10-minute increments throughout the day, this is a necessary perk.

    --
    welcome to the rainforest... dialtone69@hotmail.com
    1. Re:Bill Gates Flies Coach by JeffBarr · · Score: 1

      Sorry, but Bill owns his own Challenger 604 for which he paid something like $20,000,000.00

    2. Re:Bill Gates Flies Coach by daviddennis · · Score: 2

      I'm wondering whether anyone caught the allusion to Warren Buffett who once called Berkshire Hathaway's private jet "The Indefensible". Since the Berkshire share price has done - ahem - modestly well, from some $2,000 during the early 80s to somewhere in the mid to high five figures today (and no, I'm not kidding!), I don't think shareholders begrudge him the perk.

      Warren Buffet subsequently became a major convert to corporate aviation, later relabeling his jet the "Semi-Defensible" while using it during a particularly vicious takeover battle. In the end, he wound up becoming a customer of a company called Executive Jet, which lets him timeshare his favourite luxury. He subsequently bought the company, so in the end he has managed to make a substantial profit off of his weakness for private aviation. So it went from indulgence to profit center with him, something that I'm sure is pretty typical of the way he operates, and the reason he holds the title of the world's richest investor.

      D

  55. Re:Concorder by SamBeckett · · Score: 1

    I never mentioned protecting the interests of the wealthy -- I was merely suggesting that it would be better to protect the rights/freedoms/interests that allows one to become wealthy.

    IMHO, giving anyone "anything" for free is a waste of resources.

  56. The hot potato is still getting passed around by ptomblin · · Score: 2

    First, about 10 years ago, I heard that Dassault was looking to build a supersonic bizjet. Then it was Suhkoi. Then it was Dassault and Suhkoi together. Now it's Dassault working with Gulfstream and Suhkoi working with Boeing.

    I'm not holding my breath for this to become a reality. But I sure hope my old flying instructor who flies Gulfstreams gets a job on one.

    --
    The next Cmdr Taco duplicate will be ready soon, but subscribers can beat the rush and see it early!
  57. Um, that *was* a major design flaw! by phillymjs · · Score: 1

    The Concorde has a history of tire problems. When the crash happened last year, it was due to debris from the Concorde's own blown tire perforating the fuel tank, which led to the ignition of the leaking fuel.

    Now, I'm no aeronautical engineer, but i'd say that when a flying chunk of blown tire can punch a hole in your fuel tank and lead to the loss of the entire aircraft and the death of all souls aboard, that's a pretty Goddamned major design flaw.

    You might as well have said, "...the Ford Pinto's tendency to go up in flames was always due to a rear-impact, not a major design flaw."

    ~Philly

  58. Supersonic over water? by mindstrm · · Score: 2

    The only reason the concorde can't go supersonic over land is because of noise pollution, and has nothing to do with it's actual abilities. It can certainly go supersonic anywhere it feels like it, as long as the altitude is high enough.

    1. Re:Supersonic over water? by DjDanny · · Score: 1

      Yes, I'm afraid you Americans have been brainwashed by your government into thinking Concorde is 'evil'. Largely because it does not contain any US parts. This is the only reason why it is not allowed to fly over to San Francisco etc.
      Sad, but true.

  59. The Russians had something... by phillymjs · · Score: 1

    ... that looked like that, back in 1982. Of course, it was made to kill capitalist pigs, not ferry them around in comfort to meetings with other capitalist pigs. :-)

    ~Philly

    1. Re:The Russians had something... by cant_get_a_good_nick · · Score: 1

      So instead of "fire rearward missile" the pilot will have to think "launch rearward roasted almonds?"

    2. Re:The Russians had something... by JoeGee · · Score: 1

      The difference of course would be that Firefox was from a movie, so that's "Russians" in quotation marks.

      Before I checked your link I was thinking you meant something like the Soviet Tupelev-144 or "Concordski" as a few in the press called it.

      --

      Get off my virtual lawn, you damned virtual kids!
  60. Why dawdle at Mach 1 when you can have Mach 3? by jmichaelg · · Score: 4, Interesting
    Airplanes spend most of their power just pushing air out of the way - their drag rises as the cube of their airspeed. An alternative to trying to push faster through air is to build an evacuated tube between New York and Los Angeles. Put in a superconducting maglev train similar to what the Japanese have and let her rip. Since the tube's evacuated, you're not moving air out of the way so the majority of the fuel is used for acceleration and deceleration - the train coasts for most of the trip.

    The maglev train's inventors have posted a proposal for a mach 3 train that would get you coast to coast in an hour and a half. Make the tube ultra straight and you can make the same trip in 45 minutes.

    A Swedish engineering firm recently built the world's longest tunnel through hard rock for less than $10 million/mile. If the trans-continental tube came in at around that cost, it'd run $22 Billion. The trains themselves are estimated to cost around $5 million per car - a lot cheaper, and faster, than a $80 Million Gulfstream V.

    1. Re:Why dawdle at Mach 1 when you can have Mach 3? by martyb · · Score: 2

      Interesting concept. First a correction and then a comments.

      Airplanes spend most of their power just pushing air out of the way - their drag rises as the cube of their airspeed.

      Drag rises as the SQAURE of the speed, not the CUBE. If memory serves me from a course I took in college:

      drag = 1/2 * rho * U^2 * S * Cd
      where:
      rho - density of air
      U - speed of the vehicle
      S - surface area
      Cd - coefficient of drag

      I'd be concerned about the construction of such a long, evacuated space (nature abhors a vacuum) as well as the ability to maintain it, protect it from damage (say from an earthquake or a leak - solid rock has fissures) and defend it from terrorists. I'm not saying it's impossible, but rather that there is more to it than it would appear on the surface (umm, well, that's not quite the right word, but you know what I mean! ;^)

    2. Re:Why dawdle at Mach 1 when you can have Mach 3? by 4of12 · · Score: 2

      I could swear that a few years ago I read about some commercial jet flying across the vast nether <boringmidwest> regions of the United States when, for some fluke reason the plane began a power dive. IIRC, the plane broke the sound barrier!

      There was all kinds of consternation and investigation, etc., without much result that I can remember.

      I do sympathize with the pilot, though, after guiding those commercial jets in flights that are probably as exciting as watching paint dry!

      --
      "Provided by the management for your protection."
    3. Re:Why dawdle at Mach 1 when you can have Mach 3? by jmichaelg · · Score: 2
      It looks as if you're correct - drag is proportional to the square, not the cube.

      I found a single reference to power requirements rising by the cube of the speed - perhaps that's what the maglev site's author meant.

    4. Re:Why dawdle at Mach 1 when you can have Mach 3? by uweber · · Score: 1

      Well Europe is once again already planing one check this out!

      O.K. maybe not supersonic but evacuated none the less. Btw. you dont need superconductors for Maglev at least the German Transrapid does not need it, makes it cheaper, too.

      --
      --Ulrich
      On no accounts allow a Vogon to read poetry at you
    5. Re:Why dawdle at Mach 1 when you can have Mach 3? by jmichaelg · · Score: 2
      ...makes it cheaper too

      Cheaper and less reliable. Transrapid may not need superconductors but it needs very close tolerances on the track and the control circuitry.

      As a Transrapid vehicle approaches the track due to uneven surfaces or somebody turning over in their sleeper car, the vehicle is more strongly attracted to the rail. The control circuitry has to step in quickly to prevent the train from grinding into the rail. Conversely, if the train moves away from the rail, the control circuitry has to ramp up the current to pull the train back towards the rail lest the train fall away. Heaven help you if the train loses power.

      Another advantage superconducting maglev has is that it can carry freight. As the vehicles sink on the railbed due to loading, the repulsion strength automatically compensates and the levitating force increases. With a properly configured superconducting maglev train, you could compete against steel-on-steel rail. The major drawback to this technology is the huge initial expense.

    6. Re:Why dawdle at Mach 1 when you can have Mach 3? by Rick+the+Red · · Score: 2
      That's great, if all you want to do is go from New York City to Los Angeles. If you want to go from any point on Earth to any other point on Earth, and not just from Point LA to Point NYC, an airplane is a far better choice than a train. Any train.

      --
      If all this should have a reason, we would be the last to know.
    7. Re:Why dawdle at Mach 1 when you can have Mach 3? by uweber · · Score: 1

      Well that might well be but the Transrapid has been in development for a long time and construction for the first comercial track will start soon (Shanghai airport -> innercity) and China might well decide that Shanghai -> Peking might be a good for the Olympics.

      --
      --Ulrich
      On no accounts allow a Vogon to read poetry at you
  61. Warning about private jets by Anonymous Coward · · Score: 2, Informative

    Among the different classes of aircraft,
    private jets (including corporate) have one of
    the worst accident rates.

  62. Part 91 by Owen+Lynn · · Score: 1

    That's Part 91, which is what individual pilots fly under. The airlines and charter services fly under different Parts. Granted, I suspect the regs are substantially similar for those people as well.

    I read that, and thought, gee, if I have to pay attention to that rule, I'll be doing very very well in life.

    Let me put it this way - all of the "afforable" general aviation planes are well under subsonic.
    A new Cessna 172 will run you about $160,000 and it has a top speed of ~160kts, and a sane speed of about ~100kts. Sonic speed is about ~400kts, depending on temp and pressure. And the prices for new ceritified planes go up from there. And no propeller plane will go supersonic (well unless you pull a powered dive). And turbine engine$ are expen$ive. If you can afford a plane that can go supersonic, you are doing so well, you should be patting yourself on the back constantly.

    1. Re:Part 91 by phliar · · Score: 1
      That's Part 91, which is what individual pilots fly under.
      Not exactly; Part 135 and Part 121 operators also have to follow Part 91 (and Part 61).

      As 91.1 of the Holy Scripture says:

      91.1 Applicability.

      (a) Except as provided in paragraphs (b) and (c) of this section and 91.701 and 91.703, this part prescribes rules governing the operation of aircraft (other than moored balloons, kites, unmanned rockets, and unmanned free balloons, which are governed by part 101 of this chapter, and ultralight vehicles operated in accordance with part 103 of this chapter) within the United States, including the waters within 3 nautical miles of the U.S. coast.

      (Paragraphs (b) and (c) deal with off-shore ops. and passengers, respectively; 91.701 and 91.703 are foreign ops.) And pilots for hire can fly Part 91 ops, as in corporate flight depts.

      Whee! FAR Talmudic arguments now on slashdot!

      --
      Unlimited growth == Cancer.
  63. Bill who? by Anonymous Coward · · Score: 0

    I thought he meant Clinton. Nevermind.

  64. Re:What happened to "Getting there is half the fun by Anonymous Coward · · Score: 0

    If you're really lucky, you can take the Orient Express (the train itself) from Beijing to Moscow. It's an amazing trip; I did it in '93.

  65. Re:LCD's are reliable by goates · · Score: 1

    First of all, I am a pilot, I'm just finishing my commercial Licencse.

    According to most aviation magazines I have read, and from experience during my training, LCD's are more reliable. This is because they have almost no moving parts, so they can't really wear out or break like mechanical instruments. Mechanical instruments are still installed as back-ups, in commercial aircraft in case of something like an electrical failure, even then there is always a backup electrical system.

    They LCD's display information similarily to older instruments because it is generally easier to read. They have changed the displays, especially with respect to navigation (moving maps with almost everything shown, like aircraft and navaids) and altimeters(usually a vertical bar and a digital read out).

    The place I'm flying at has had about 5 mechanical instruments fail in the past month on different aircraft, but have never had a problem with the GPS LCD moving map screens.

    There are some flight information displays that use WindowsNT, but apparently they are very reliable. They don't look like Windows though. I have never used one though.

  66. Oversensitive MSFT Shills Everywhere Today by FreeUser · · Score: 1, Flamebait

    Bill and his mates..Huh? There's no Bill in the article. If this is a reference to Bill Gates, it has to be the most contrived jab at Microsoft in the history of this site.

    Except it is only a jab in the minds of those who are oversensitive to past "jabs" of a much more deserving sort: Microsoft's monopoly, the manner in which they held back computing technology for over a decade, etc. etc.

    Saying Bill and his mates might want one of these is a reference to their wealth, nothing more. Unless you equate wealth with something negative, there is no "jab" in this at all. Indeed, even most of the anti-microsoft crowd (a growing group if there ever was one, and for numerous good reasons) aren't angry at Bill's wealth, merely the manner in which he got it and the cost that has meant to the rest of us, particularly those of us who care about the technology itself.

    So in short, get over yourself. The author wasn't even poking fun at Microsoft or Bill Gates at all, just at the pricetag of these new supersonic biz-jets. Wait until tommorow's story about Microsoft's latest atrocity before overreacting, why don't you.

    --
    The Future of Human Evolution: Autonomy
    1. Re:Oversensitive MSFT Shills Everywhere Today by Otter · · Score: 1
      Relax, OK? I'm not calling for an investigation, just chuckling at how the local obsession with Microsoft has managed to spill over into a story about personal supersonic aviation.

      And declaring me and the others who responded similarly to be "shills" suggests I'm not the only one who is a bit paranoid...

  67. Re:What happened to "Getting there is half the fun by Lance+Fuckhoff · · Score: 1

    You must be a very strange person indeed to enjoy long distance train travel. Yes sir, I want to spend six days without a shower, with my body contorted in strange positions due to the poor sleeping accomodations and your mind all fuzzy due to the noise of the train tracks.

  68. MSAirforce One by macdaddy · · Score: 3, Funny

    MSAirforce One 2002

    1. Re:MSAirforce One by unformed · · Score: 2

      And when it crashes, instead of a Blue Screen of Death, you'll be seeing a Blue Sky of Death, for 30000 feet down.

  69. Anyone here keeping up with the Big Dig? by ColGraff · · Score: 2

    The Big Dig in Boston is causing major problems and cost overruns, and that's just an unpressurized underground street system, for chrissakes! And you think we can manage to build a tunnel across the country? And keep it in a vacuum? Hah!

    Questions: What happens if a large rock is placed on the track by a terrorist group?

    --
    I'm the stranger...posting to /.
    1. Re:Anyone here keeping up with the Big Dig? by signe · · Score: 2

      The Big Dig in Boston is causing major problems and cost overruns, and that's just an unpressurized underground street system, for chrissakes! And you think we can manage to build a tunnel across the country? And keep it in a vacuum? Hah!

      This is very true. However, the Big Dig also has the problem of being completely located in a highly populated area with many drivers who are agressive in the extreme. It's also disrupting almost every major artery, both raised and surface, in downtown Boston. And the roads that are still available to drive on are in horrible disrepair.

      A low-pressure tunnel from NYC to LA would be primarily built under areas that are not densely populated. Also, if you're just building a single, very straight tunnel, I would think that you could start at one end, drop a subterranean drill in, and work your way along underground, building support structures behind the drill as you go. Your problems there, of course, include: getting through all sorts of materials; clearing anything buried and in the way like cables, wells, etc.; getting permission from everyone; building neccessary above-ground support buildings and connecting them; and keeping the whole thing straight and on the appropriate curvature. No simple feat.

      Questions: What happens if a large rock is placed on the track by a terrorist group?

      The terrorist "what if" is a factor in just about any endeavor. In this case, yeah, if that happened and the train hit it there would definitely be massive problems including the destruction of the tunnel, probably the destruction of the train, and possibly the destruction of anything above the tunnel. However, I would think that there would be numerous systems to detect and prevent something like this.

      Of course you're going to have to have periodic airlocks for maintenance and safety. But those airlocks should be reasonably secured on the outside and wired up so that a thousand alarms go off if someone so much as opens the outside door. But let's say someone manages to get around this and get into an airlock without being detected.

      An airlock opening into the tunnel is probably going to cause a very slight, localized pressure change. More sensors and alarms hooked up to something like this. You might even design a slight difference in, as extra security. OK, so somehow you've managed to get around this as well.

      The inside of the tunnel would be lined with sensor packs, including cameras, IR detectors, and possibly laser nets. And the wiring and apparatus would be completely within the tunnel, such that you'd have to be inside, or at one end or the other, in order to screw with them. Humans would be watching these, as well as a dedicated computer system running custom image recognition software to detect unexpected changes. OK, somehow you got around this too.

      I'd also expect there would be some sort of "sweeper" apparatus, or roving scanners that would constantly patrol up and down the tunnel looking for anything out of the ordinary. You managed to get around this too? Congratulations. It probably would have been a lot easier to pick a convenient spot at surface level, drill down to just above the tunnel, and drop some explosive in there timed to go off when the train passes underneath. Wouldn't take much.

      -Todd

      --
      "The details of my life are quite inconsequential..."
  70. MOD ABOVE UP! SMART STUFF! by Anonymous Coward · · Score: 0

    Good stuff; should be higher. HELLLOOOOOO!

  71. This is not a shock wave, but after-effects by Goldenhawk · · Score: 1
    FYI, I *AM* an aerospace engineer...

    I've seen the same thing at very much subsonic speeds looking out the window of an airliner on final approach on a humid day. All it takes is for the air pressure to drop low enough to cause instant condensation. This happens as the air flows around the wing and accelerates (lowering the pressure, according to Bernoulli's equation).

    Condensation is what causes the cloud. Condensation is usually caused by a DROP in pressure, which causes cooling, which lowers the temperature below the dew point. But a sonic boom is a shock wave - which is physically defined as a sudden (step) increase in pressure - which also results in a sudden INCREASE in temperature. This cannot lead to a condensation. What you are seeing is the air thinning back out and cooling down well BEHIND the shock wave, if anything.

    Also, please note that a true sonic boom begins at the nose of the airplane, not the middle. As the air first touches the nose a wave forms and propgates away and back at some angle (defined by the speed). It forms a cone around the airplane. That shock wave stays attached to the very nose of the airplane, PERIOD. Secondary shocks also form on different parts of the airplane, depending on speed. As they move away from the airplane, they tend to coalesce into a single shock. This is because the air AFTER the shock is denser, so the rear shock moves faster (sound moves faster thru denser air) and the rear shock catches up to the first one. So at some distance from the airplane there is basically one leading shock. You can also find a second "reverse" shock as the rear of the airplane passes, basically attached to the back of the airplane. You can find a great photo (using the "Schlieren" photography method) here.

    --
    --Brandon / Split Infinity Music

    1. Re:This is not a shock wave, but after-effects by Anonymous Coward · · Score: 0


      please mod this up

  72. Or buy a used Lear for only $750K! by Anonymous Coward · · Score: 0

    http://www.learjet4sale.com

  73. Re:What happened to "Getting there is half the fun by mlc · · Score: 2
    Some of the my most memorable journeys have been long train trips.
    ...
    Besides, you know how much we get pissed-off when some Yuppie asshole's cell-phone starts ringing when we are trying to enjoy a nice restaurant or theatre performance?

    I dunno, but whenever I take Amtrak (which is actually quite frequently -- I go between NY and MA a couple times each semester), there are always a ton of people making and recieving calls on the train. And it really pisses me off when the person sitting behind me starts talking really loudly into eir cellphone. And the conversations are all the same: "Hello... I'm on the train... We're currently in [wherever] and we should be [somewhere else] in about n minutes. Can you come pick me up?" The same damn phonecall (made by a different person) every few minutes. And now Amtrak is starting to advertise that the fact you can use your phone is an advantage of the train over the airplane. Grrr.

    But, from Manhattan to where my parents live in southern MA, it's actually quicker to take the train than fly... no getting to/from all these airports and waiting around, and I don't have to make reservations weeks in advance. Now, if all these "service improvements" they've been instituting recently actually improved service, I'd be happy...

  74. Re:Concorder by TheSync · · Score: 2

    I've got no problem when it comes to paying my 30% income tax that's being used to pay for the excellent public health care, public transportation and public services. As a result there's no population living below the poverty line, the unemployment level is 5.7%, literacy out of total population is 100%

    Where the heck do you live where the income tax rate is only 30%?

    In the US, I (now) pay 35% federal income tax, 13% social security tax (a regressive and partially hidden income tax), and about 8% more in state and local income taxes, for a total of 56% income tax. Yet the US poverty rate is still 13%, and despite universal free education, there is 3% illiteracy.

  75. Harrods isn't a restaurant... by Anonymous Coward · · Score: 0

    ...it's a department store.

  76. Harrods?? by Howie · · Score: 2

    Since Harrods closes at 7pm, it'd have to be an early dinner... not mention that it's a department store. (Although according to their website, they do have 19 eating/drinking establishments inside nowadays, rather than just the worlds most expensive cafe)

    --
    "don't fall into the fallacy of believing that Perl can solve social problems. Maybe Perl 6 can, but that's a ways off"
  77. harrods for dinner? by cute-boy · · Score: 1

    Who goes to Harrods for dinner?

    1. Re:harrods for dinner? by mojo-raisin · · Score: 1

      Their wool coats are high in fiber.

    2. Re:harrods for dinner? by Anonymous Coward · · Score: 0

      Poster:
      Umm.. Can't think of a restaurant in London. Don't wanna look it up. Hmm.. Harrod's is in London, I think.. Yeah - Harrods.

    3. Re:harrods for dinner? by zerogeewhiz · · Score: 1

      Mohamad Al Fayed? Who gives a toss?

  78. Re:Concorder by Anonymous Coward · · Score: 0

    Maybe some people just wanted a fair day's pay for a fair day's work? I mean, why should someone who works their butt off 10 hours a day, 6 days a week be paid a fraction of what some fat-cat who attends a board meeting two days a month gets paid?


    Oh, I don't know, how about because directing a large enterprise creates a hell of a lot more wealth without which your fictional hard working Joe Sixpack wouldn't have anywhere to work his butt off? So how much should the lowly fast food cashier who can't get an order right half the time make compared to the CEO who directs the company? They either make the same or more than the CEO, or they make a fraction. I think a fraction, even a small fraction, is perfectly appropriate. Disagree? Start your own company and set your compensation as low as you'd like. You'd even have a competitive advantage since your operating costs would be lower. We libertarian "fascists" think that's just great if you want to do that. Its also fine if you think its ok to accept fair market value for your work.

    Just because some people are born with a silver spoon in their mouths, or are lucky, does not mean that those who dont deserve to live in poverty, regardless of how hard they work.


    With due respect, whiny liberals like you don't know the meaning of the word poverty. I've seen the so-called poor at the local supermarket paying for their groceries with my money which they mistakenly believe they have a right to, while talking on their cell phone, a luxury I don't think I can justify for myself. I've yet to see this mythical hard working person who just can't get anywhere. Our society has too many lazy people with their hands out. Those who really are willing to work their butts off are rewarded. Sadly, in today's political climate, those who whine their butts off are also rewarded.


    Can you honestly believe that the wealthy are exclusively those who were born wealthy or those who are "lucky"? Not a one of them wealthy because they risked their future, worked their butts off not 60, but 80 or 100 or more hours per week to make their dream a reality (incidentally employing people like you in the process)? I can only hope that you're honest about your opinions in your professional life so those lazy, predatory bastards can invite you to work in a more agreeable environment.


    Fucking libertarian fascist.


    Libertarian fascist? What a concept. Since you're obviously ignorant of the meaning, those terms are diametrically opposed. Libertarians believe personal liberty is paramount. Minimal government interference. Fascists believe the state is the priority, to which everything else is secondary (most especially including personal liberties). Anyone calling himself a libertarian fascist, or caling someone else one, is rather confused on their terminology.


    You'll have to excuse me if this rubbed me the wrong way. I'm doing ok, not wealthy by *any* stretch of the imagination, and probably less so than most of you reading this. I have a job I enjoy, not the job which pays me the most I could demand. I'm doing a better than a number of years ago because I worked my butt off (80 to 100+ hours, thankyouverymuch) to develop a skill which the job market chooses to compensate better than average. I can't sympathize with those who choose not to do so, but rather choose to revile hard working people for daring to achieve a modicum of success.

  79. If I had one of these... by Omerna · · Score: 2

    I'd fly supersonic everywhere. What are they gonna do? Arrest me? I just blew 80M US on a jet, I can afford the fines and reparrations for damage. Maybe I can drop leaflets behind me saying, "For $ to fix your roof, call 1 (123) 555-1234".

    Take it as a joke.

    --


    No sig for you.
  80. Re:Concorder by Anonymous Coward · · Score: 0

    He obviously lives somewhere which doesn't spend as much money as the US on 'defense'

  81. Re:Naw, not likely by jake-in-a-box · · Score: 1

    Commercial aircraft aren't designed for the kind of stresses seen in the transonic and supersonic region. The craft would have had control difficulties that would almost certainly resulted in a hole in the ground, probably several because it would have broken up in flight.

    --
    To hear the gods laugh tell them your plans.
  82. Article Remarkably Devoid of Details by jake-in-a-box · · Score: 1

    Kinda reminds me of all those aircar articles from Popular Science in the '60s & '70s. Who is planning to build it, what are the major design parameters? Mach 1, Mach 1.5, Mach 2?, number of passengers, weight, range, planform etc.? When - 5 to 10 years - like the Mars Society, right?

    If this article was in a newsgroup I'd call it a troll. As it is, I wonder about the reputation of the publication and market it serves - it looks like the paper is probably a tabloid ir an Aussie equivalent of the Weekly World (sic?). Like "Scientists Photograph Heaven with Space Telescope" headlines.

    --
    To hear the gods laugh tell them your plans.
  83. Re:What happened to "Getting there is half the fun by Dolly_Llama · · Score: 1
    Patriots are used (how well is questionable), for targets on ballistic trajectories. You're looking for a Surface to Air Missle.

    May I direct you to here [no joke]

    --

    Somewhere, something incredible is waiting to be known. -- Carl Sagan

  84. GPS speed limits by phliar · · Score: 2, Interesting
    GPS doesn't work at supersonic speeds anyway so there wouldn't be much point in having it.
    GPS works fine at any speed. (Well, non-relativistic speeds, anyway...)

    A few things to keep in mind:

    • Consumer GPS chipsets are limited to 900kt.
    • There's no reason a foreign government/company couldn't design a GPS chipset.
    • Concorde cruises around Mach 2 @ FL600
    • Above FL400, the speed of sound is 580 kt so 900 kt = Mach 1.5.
    • GLONASS [the Russian sat. nav. system] does not have speed limits.

    But the most important thing is: inertial navigation works just fine - especially if there are <20 airplanes in the world flying at those speeds and altitudes!

    --
    Unlimited growth == Cancer.
  85. "Steam gauge" instruments vs. glass cockpits by phliar · · Score: 1
    It's a heck of a lot easier to look at a needle and say, "oooh, that one's getting close to the red part," than to look at an LCD and say, "73. what does 73 mean?
    A poorly designed interface is just that. Analog instruments are better for quick scans and can display trends better; so a glass cockpit will give you an analog picture of the situation. They don't give you degrees of bank and roll numerically; they draw a picture of a horizon.

    The cool thing though is: much more flexibility. Instead of a needle showing you deviations from your course, they can depict a "highway in the sky" on top of the artificial horizon. Instead of a horrendously expensive mechanical HSI (Horizontal Situation Indicator, a moving compass rose that has superimposed navigation needles) an electronic HSI can show you a compass rose with nav. moving map, and overlay weather radar, terrain, traffic and lightning strike data.

    And those LCD glass cockpits are much more reliable than the good ol' steam gauges. Don't get me wrong, I don't feel that my life is being placed in jeopardy because the airplanes I fly have steam gauges; but man alive, I drool over what those colour displays can do. (The FAA is a lot more conservative now, and these systems are much more reliable, accurate and readable than mechanical instruments.)

    (For an example of glass cockpits for [almost] normal people, check out the UPS Aviation Technologies MX-20, part of the AGATE project.

    --
    Unlimited growth == Cancer.
  86. Shocks on airliners by phliar · · Score: 1
    FYI, I *AM* an aerospace engineer...
    Excellent! I have a question:

    On one flight in an airliner, the sun was abeam the aircraft, and on the left side; I had a window seat on the right side over the wing. I saw a shadow on the wing that looked a lot like Schlieren images of shocks I've seen [I used to volunteer at a wind-tunnel lab as an undergraduate]. I think this was on a B727, during cruise flight so it was not unreasonable that there be a weak shock on the upper surface. The shadow also moved as I expected a shock to move when small control movements were made.

    Could that really have been a shock, or was I seeing some sort of condensation artifact? (I have seen the normal condensation effects - in wingtip vortices, flap boundaries, and even a cloud over a large part of the upper surface.)

    Unfortunately I couldn't keep track of the shadow all the way to the first power reduction since it got overcast.

    --
    Unlimited growth == Cancer.
  87. body by Anonymous Coward · · Score: 0
  88. Congestion probably nixes supersonic over land by DougP · · Score: 1

    When Concorde comes in over Britain, the air traffic control clears it a huge corridor fare wider and longer than for any other civil jet - and that's when it's actually subsonic. Just like cars on a freeway, as you increase the speed of the jet, you need more space around it to be safe. It may be better over North America or Australia, but you couldn't go supersonic over Europe because of the traffic!

  89. was mentioned in "Tintin" comics in 1967 by dario_moreno · · Score: 1


    In "Vol 714 pour Sydney" (one of the
    worst Tintin albums, by the way) the
    most interesting part is about a
    very accurately and realistically
    described supersonic business jet,
    designed by a parody of M.Dassault. The
    jet is indeed quite long, 10-seater or
    something, with straight and
    acute wings with variable geometry (as opposed
    to the delta shapes of Concorde, Tu144 and
    various supersonic fighter jets,which, of
    what I heard, seem to be the only other possibility to have maneuvrability at all
    speeds and not too high takeoff/landing speeds).

    Maybe it is the way to go if the acuteness of
    the wings is necessary to prevent damage to the
    buildings ?

    By the way, when a squadron of four fighter
    jets exercise 150 ft above my house,
    making everything shake, frightening my pets,
    (who damage the furniture when rushing for
    shelter), with a large black trail of smoke,
    this is not a problem, as when a Concorde
    flies at 60 000 ft this is one ? Or is is just
    protectionist excuses to damage
    european airplane industry...

    --
    Google passes Turing test : see my journal
  90. Re:Concorder by arielb · · Score: 0, Funny

    probably a country where the US sends its troops in to protect their butts :)

    --
    ---
  91. Re:Concorder by Anonymous Coward · · Score: 0

    Most libertarians, in my experience, are fascists. Fascism is not about the state having control over everything - during the hieght of the Nazi & Fascista eras, private enterprise was alive and well in both Italy and Germany. Fascism is about dictatorship, about ensuring that things people rely on are controlled by "experts" rather than being democratically accountable.

    Libertarianism, despite portraying itself as being about "personal liberty" is rarely anything of the sort. It's about survival of the fittest, and removing democratic and moral accountability from everything in favour of a "free" market. It relies on the sophistry that as a government is the only thing that can pass and enforce laws, ergo government can be the only thing that can restrict freedom. It says that a person is freeer if their neighbour has a gun and threatens them with it every time they come too close than if they can rely on a police force to protect them from such a neighbour.

    Anyone who ignores the parallels between libertarianism and what happened at the hieght of the 1930s does so at their peril.

    As for your other neanderthal bullshit, perhaps you'd like, again, to explain why someone who works 10 hours a day, 6 days a week deserves to live in poverty? This thread is not about whether people who "succeed" in your terms deserve to live comfortable lives, but whether those who work hard deserve not to. It seems ironic and tragic to me that those who complain constantly about how they think taxes etc are unfair because they deprive people of hard earned money seem to flip out when it's suggested that people who work hard ought to earn well too.

  92. Re:Concorder by Anonymous Coward · · Score: 0

    Hear hear!

    People who doubt the connections might want to find out who persuaded Germany's leaders at the time to make Hitler chancellor. They also might want to examine the number of industrialists ("people who have acheived a modicum of success") the world over - from Joe Kennedy to Henry Ford - who supported the two European fascist regimes. They might want to ask themselves why anyone opposed to fascism during the thirties in the US was blacklisted as a communist, well before McCarthy and Nixon made it fashionable, no matter how sincere their hatred of totalitarianism.

    If you support the rights of companies to act without any democratic accountability, as most libertarians do, you might want to think about where such views lead.

  93. Wrong kind of Administration by Anonymous Coward · · Score: 0

    It's the buying small companies and tearing them to shreds kind which requires physical travel. Sometimes the MS people have to make kissy faces just long enough for the fly to fall into the web.

  94. YUO = ST00PID 2 by ebbv · · Score: 1


    http://www.somethingawful.com/jeffk/

    PLAES LAUNCH YUORSELF INTO SPAEC!!!!
    ...dave

    --

    Think different? I'd be happy if most people would just think...
  95. For the record.. by mindstrm · · Score: 2

    I am not American.

  96. Concept Planes by SkewlD00d · · Score: 1
    It appears the big mfgrs thought of this several years ago:
    --
    The biggest trick the devil pulled was letting lawyers become politicians so they can write the laws.