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Boeing's X-51 WaveRider Jet Crashes In Mach 6 Attempt

An anonymous reader writes "Boeing's experimental hypersonic X-51 WaveRider aircraft crashed today during an attempt to hit Mach 6 while traveling over the Pacific Ocean. The cause of the crash was a faulty control fin, which compromised the test before the Scramjet engine could be lit. A vehicle traveling at Mach 6 (six times the speed of sound) would be able to travel from New York to London in just one hour."

190 comments

  1. Who else has these? by synapse7 · · Score: 0

    So we have somebody to play missle command with.

    1. Re:Who else has these? by Anonymous Coward · · Score: 0

      The Australians invented it. Would make for a nice playground across the pacific ocean.

  2. That's twice by Anonymous Coward · · Score: 0

    Third time's the charm?

  3. Going nowhere fast... by mholve · · Score: 0

    Or not.

  4. Prediction: by DeTech · · Score: 1

    Boeing's stock will plummet faster than a X-51 WaveRider aircraft with a faulty control fin.

    1. Re:Prediction: by DroolTwist · · Score: 3, Funny

      Looks like they found the offinding piece of hardware.

    2. Re:Prediction: by SomePgmr · · Score: 1

      At best, it's a blip on their radar. I don't think ripples in the market will be very big. ;)

    3. Re:Prediction: by DeTech · · Score: 1

      This just in, the X-51 closed today down 3,790, metres...

    4. Re:Prediction: by Jeng · · Score: 1

      Prediction:

      You will be very wrong.

      --
      Don't know something? Look it up. Still don't know? Then ask.
    5. Re:Prediction: by 91degrees · · Score: 1

      It's also experimental. They probably factor the risk of losing a couple into the budget. They got through a couple of X43's as well.

    6. Re:Prediction: by CanHasDIY · · Score: 1, Offtopic

      As was recently said to me:

      Here it is, 2012, and we still lack the capability to punch someone over TCP/IP...

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    7. Re:Prediction: by SomePgmr · · Score: 0

      Oh c'mon now, there are so many better reasons to want to punch people over the innerwebs than really bad wordplay.

    8. Re:Prediction: by RenderSeven · · Score: 2

      and we still lack the capability to punch someone over TCP/IP...

      Of course we can. The USB Missle Launcher works over WMS or Skype. It qualifies for a sufficiently loose definition of 'punch'.

    9. Re:Prediction: by Jeng · · Score: 1

      Computers do not have the capability to punch someone, in order to give computers the capability to punch someone you will need an attachment that can punch.

      Sending the command over TCP/IP should be easy enough.

      The problem is how do you convince someone to install a punching device when the only point of said device is to punch the owner of the device?

      --
      Don't know something? Look it up. Still don't know? Then ask.
    10. Re:Prediction: by Anonymous Coward · · Score: 0, Offtopic

      used to be we wanted to stab people.

      http://bash.org/?4281

    11. Re:Prediction: by Anonymous Coward · · Score: 0

      Waverider sleeps with the fishes.

    12. Re:Prediction: by Draconmythica · · Score: 1

      Simple. Just make it a "feature" of Windows 8 :)

    13. Re:Prediction: by ThePeices · · Score: 1

      The problem is how do you convince someone to install a punching device when the only point of said device is to punch the owner of the device?

      Easy. Pay them money. LOTS of money.

    14. Re:Prediction: by JDeane · · Score: 1

      So set up a web cam and a web page where people can pay some money to watch you being punched by a machine attached to the PC or for more money they can actually give the command.... Then have some banner ads to rake in even more money?

      I can this happening.

      Of course this might lead to some form of competition to who is going to be the first one to let some one kick them in the nuts over the Internet....

    15. Re:Prediction: by slick7 · · Score: 1

      At best, it's a blip on their radar. I don't think ripples in the market will be very big. ;)

      And its too big to fail.

      --
      The mind conceives, the body achieves, the spirit manifests.
    16. Re:Prediction: by geekoid · · Score: 1

      Sell it as a masturbatory aid. Neglect to tell them you can also send punch commands.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    17. Re:Prediction: by Anonymous Coward · · Score: 0

      You can accidentially this happening? I pour spaghetti over your head over the internet.

  5. Worse yet, ... by PPH · · Score: 5, Funny

    ...there were no survivors.

    --
    Have gnu, will travel.
    1. Re:Worse yet, ... by Anonymous Coward · · Score: 0, Funny

      If a plane crashes on the US/Canadian border, where do they bury the survivors?

    2. Re:Worse yet, ... by skipkent · · Score: 0

      Tis an unmanned craft, but only the BBC article mentions that fact.

    3. Re:Worse yet, ... by Anonymous Coward · · Score: 0

      ...said the 8 foot tall figure in the holocaust cloak.

    4. Re:Worse yet, ... by MrSenile · · Score: 1

      We can rebuild him... we have the technology... better... stronger... faster...

    5. Re:Worse yet, ... by Anonymous Coward · · Score: 4, Funny

      Can you imagine how loud the woooshing would have been had the scramjet enjine been lit?

      Oh the humanity.

    6. Re:Worse yet, ... by Anonymous Coward · · Score: 0

      If a plane crashes on the US/Canadian border, where do they bury the survivors?

      Depends on who wants to cover it up. They get to decide. If the US wants to cover it up, they may bury the survivors in some mountain in some desolate part of the US, or decide that Canada has nicer places to bury them - like the sparsely-populated territories in the high arctic area, where it's hundreds of kilometres away from the nearest settlement. (or one of the many islands).

    7. Re:Worse yet, ... by macbuzz01 · · Score: 1

      +1 funny

    8. Re:Worse yet, ... by Anonymous Coward · · Score: 0

      (you don't bury survivors)

    9. Re:Worse yet, ... by Anonymous Coward · · Score: 0

      (you don't bury survivors)

      Tell that to Ron Brown.

    10. Re:Worse yet, ... by geekoid · · Score: 1

      I loved that show. As a kid I could wait to grow up and have my arms and legs replaced.
      As an adult I can only say "Hurry the hell up and make it happen."

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    11. Re:Worse yet, ... by ppanon · · Score: 2

      That depends on what they know.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    12. Re:Worse yet, ... by drkim · · Score: 1

      This is /.

      Do you really think anyone reads anything here before posting?

      Really?

    13. Re:Worse yet, ... by Anonymous Coward · · Score: 0

      I loved that show. As a kid I could wait to grow up and have my arms and legs replaced. As an adult I can only say "Hurry the hell up and make it happen."

      Perhaps you could have your head replaced as a matter of priority, it might improve your posts.

    14. Re:Worse yet, ... by Anonymous Coward · · Score: 0

      Actually it would probably be less of a whoosh and more of a roar.

  6. Why not build several, perhaps 3, at the time? by G3ckoG33k · · Score: 0

    Why not build several, perhaps 3, at the time?

    I doubt it would make the project three times as expensive.

    1. Re:Why not build several, perhaps 3, at the time? by jt_04 · · Score: 1

      Why not build several, perhaps 3, at the time?

      I doubt it would make the project three times as expensive.

      yeah, probably more like 4-5 times more expensive. government-run projects, you know...

    2. Re:Why not build several, perhaps 3, at the time? by Jeng · · Score: 4, Informative

      Four were built, three have been tested, one remains.

      --
      Don't know something? Look it up. Still don't know? Then ask.
    3. Re:Why not build several, perhaps 3, at the time? by Anonymous Coward · · Score: 0

      Because then you have two remaining that are built wrong and who knows the cost of refitting them.

    4. Re:Why not build several, perhaps 3, at the time? by Anonymous Coward · · Score: 5, Informative

      Why not build several, perhaps 3, at the time?

      I doubt it would make the project three times as expensive.

      They actually built 4. The first one flew for 143 seconds at hypersonic speeds, during the 2nd flight the engine shut down prematurely due to airflow disruption, and the 3rd flight is discussed in the linked article that no one is reading. They still have one more, and I am guessing they documented the design somewhere so they could probably build additional vehicles in the future if need be.

    5. Re:Why not build several, perhaps 3, at the time? by Drathos · · Score: 4, Funny

      First rule in government spending: why build one when you can have two at twice the price?

      --
      End of line..
    6. Re:Why not build several, perhaps 3, at the time? by jacknifetoaswan · · Score: 1

      Development costs are typically the most significant sink when it comes to project development. Building additional craft will be much cheaper, especially as more are built. (Economies of scale)

    7. Re:Why not build several, perhaps 3, at the time? by bill_mcgonigle · · Score: 1

      How's life in orbit these days?

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    8. Re:Why not build several, perhaps 3, at the time? by Drathos · · Score: 1

      Whooooosh!

      It's a quote from Contact.

      --
      End of line..
    9. Re:Why not build several, perhaps 3, at the time? by slew · · Score: 1

      So in this case (of an unmanned plane) all parties decided to forego pilot representation in exchange for the lucrative systems integration sub contract...

    10. Re:Why not build several, perhaps 3, at the time? by farble1670 · · Score: 4, Funny

      I am guessing they documented the design somewhere so they could probably build additional vehicles in the future if need be.

      you think? or maybe they will have to start from scratch, and see what they can remember from when they built the first four.

    11. Re:Why not build several, perhaps 3, at the time? by Esteanil · · Score: 1

      A misquote, in fact. The real quote refers to military spending.

      --
      I'm a dreamer, the world is my playpen. But hey, I'm a serious person, I can't dream all the time.
    12. Re:Why not build several, perhaps 3, at the time? by VortexCortex · · Score: 0, Troll

      That's the way you make new Open Source software...

    13. Re:Why not build several, perhaps 3, at the time? by farble1670 · · Score: 1

      yeah, talk to me when you are building scramjets and let me know how that works out.

    14. Re:Why not build several, perhaps 3, at the time? by jacknifetoaswan · · Score: 1

      Ahh...I can't believe that someone actually remembered any quotes from that stinker!

    15. Re:Why not build several, perhaps 3, at the time? by Drathos · · Score: 1

      Actually, not.

      --
      End of line..
    16. Re:Why not build several, perhaps 3, at the time? by Anonymous Coward · · Score: 0

      Sort of like what they're doing with the HLVs that took us to the moon?

    17. Re:Why not build several, perhaps 3, at the time? by VortexCortex · · Score: 1

      yeah, talk to me when you are building scramjets and let me know how that works out.

      I started building scramjets last night, but the build failed complaining:
      Error: unresolved symbol 'Math::BigInteger::Unlimited' in funds.c: 2012

      I searched the mailing lists for the project, and it seems I need lib-mil-ind-complex-dev to make warmachine.so, but that isn't in any of the public repos.
      So, I found the sources and started to compile my own. Moments later I was accused of being a terrorist and thrown in gitmo. Thanks, prick.

      -- sent from my aPhone.

  7. "just one hour" by Anonymous Coward · · Score: 0

    "A vehicle traveling at Mach 6 (six times the speed of sound) would be able to travel from New York to London in just one hour."
    Except if it crashes.

    1. Re:"just one hour" by pixelpusher220 · · Score: 4, Insightful

      Depends where it crashes.

      --
      People in cars cause accidents....accidents in cars cause people :-D
    2. Re:"just one hour" by rossdee · · Score: 1

      That's the thing - it has to be able to keep going at that speed for an hour.

    3. Re:"just one hour" by savuporo · · Score: 1

      Considering that this things is meant for delivering warheads in a non-alarming manner .. New York to London is an interesting route.

      --
      http://validator.w3.org/check?uri=http%3A%2F%2Fwww.slashdot.org Errors found while checking this document as HTML5!
    4. Re:"just one hour" by Anonymous Coward · · Score: 0

      This is NOT a missile. It is simple a test system, nothing more. When all of the bugs are ironed out, they will develop a number of different systems from it. Including taking this up to mach 20. As such, a bomber can take off from USA and be into China in under 20 minutes. If bombers, or missiles were launched from Japan, Australia, India, and Europe, we would have China covered in under 1-5 minutes to stop their ICBM launches. Then add to that the capability of lasers, railgun, and a number of mach 20 missiles from each bomber.

    5. Re:"just one hour" by savuporo · · Score: 1

      The only system to be derived from it is a much faster cruise missile. Nothing more, nothing less. Considering that the rest of the worlds advanced militaries already employ supersonic cruise missiles, and hypersonic ones like BrahMos-2 are in development, its the logical step.

      --
      http://validator.w3.org/check?uri=http%3A%2F%2Fwww.slashdot.org Errors found while checking this document as HTML5!
  8. What's the hurry? by xzvf · · Score: 5, Insightful

    It takes 2-3 hours to get through security at the airport, and 1-2 hours to get bags and transportation at the other end, plus an hour commute time to the hotel. I'd rather have a big plane with a lay flat bed, and show up the next morning.

    1. Re:What's the hurry? by KiloByte · · Score: 4, Interesting

      And what about individual rooms on a Zeppelin?

      --
      The creatures outside looked from Alt-Right to Antifa; but already it was impossible to say which was which.
    2. Re:What's the hurry? by alienzed · · Score: 3, Funny

      It doesn't matter anyway, they won't let you through security with the warhead you'd need to make that kind of speed worthwhile.

      --
      Never say never. Ah!! I did it again!
    3. Re:What's the hurry? by Shompol · · Score: 1

      They need to develop a hypersonic TSA machine that comes with it. The new machine will irradiate large batches of passengers with non-lethal doses of alpha, beta and gamma rays simultaneously, and would be able to strip search everyone flying to London in just one hour.

    4. Re:What's the hurry? by Anonymous Coward · · Score: 0

      You already have that option.

      You can join the military and ride across the atlantic on transport jets with plenty of space for you to lay prone. Or you can fly commercial, first class, and you'll have a chair capable of laying you out nearly flat.

    5. Re:What's the hurry? by Anonymous Coward · · Score: 0

      No Zepplans though. The wasted time in the airports will never made up. Until time travel becomes the norm..

    6. Re:What's the hurry? by pegasustonans · · Score: 1

      It doesn't matter anyway, they won't let you through security with the warhead you'd need to make that kind of speed worthwhile.

      Actually, they will. They'll just poke and prod it a bit uncomfortably before letting you through.

      --
      And all our yesterdays have lighted fools The way to dusty death. --Will
    7. Re:What's the hurry? by Dahamma · · Score: 1

      The types of people who can afford to fly on a hypersonic jet (ticket prices would make the Concorde look like a value airline) don't wait 2-3 hours with the cattle to get through security or catch a cab.

    8. Re:What's the hurry? by sjames · · Score: 3

      Personally, I think that would be a great way to travel. Not necessarily a private room, but a nice recliner with leg room, a table and some entertainment would be good.

    9. Re:What's the hurry? by Hadlock · · Score: 4, Interesting

      I have family that lives near Fredricksburg, Texas. About 10 times a year (nearly every month!) we drive the 5.5 hours, and then drive home about 5.5 hours. Google Maps says it's only 4.3, but eventually you need to get out and stretch your legs, country stop lights, etc.
       
      So finally I graduated and got a real job, announced "this time we're going to fly, since it's only a 40 minute flight from Dallas to San Antonio, and another hour by car! We'll save at least four hours!"
       
      Yeah. About that.
       
       

      • Wait for mom to arrive to carpool to airport.
      • Drive time to airport
      • Park at airport
      • Walk to security
      • Go through security
      • Wait at gate for 45 min - 1 hour
      • Board
      • Wait to leave gate
      • Taxi
      • Actual freakin' 40 minute flight
      • Taxi to gate
      • Wait for everyone to unload their overhead luggage and deplane
      • Walk to car rental place
      • Flag down a rental person
      • Wander the parking lot looking for our rental
      • Drive another hour to our destination
      • Finally arrive.

      Total transit time: 7 hrs 15 minutes. We've driven the 5.5 hour journey ever since.
       
      Now, I fly about 2-3 times a year, but my mother doesn't. Neither do many of the people flying airplanes on any given day. You could speed up the process, be like the guy "up in the air", but that sort of efficiency just isn't realistic for "trip to grandma's with mom".

      --
      moox. for a new generation.
    10. Re:What's the hurry? by smellsofbikes · · Score: 1

      The usual estimate is that if you can drive it in 5 hours, it's faster to drive than fly commercially. However, if your time is worth a lot -- and you won't save money doing this but you will save time -- you could buy a small airplane and get your pilot certificate. Small airplanes do about 100-120mph in a straight line and there are typically small airports within 20-ish miles of anywhere on both ends, so as long as your relatives are willing to pick you up at the far end you could have more like a 2 1/2 hour each way trip. And the view is great.

      --
      Nostalgia's not what it used to be.
    11. Re:What's the hurry? by Grishnakh · · Score: 1

      And hot-looking female flight attendants in miniskirts would be best for topping it off.

    12. Re:What's the hurry? by Grishnakh · · Score: 1

      If there's a bunch of you traveling together, you need to try chartering a small plane from a local airport. There's likely a small airport closer to where you live than DFW, there's no TSA security, and there's likely another small airport much close to your destination than San Antonio's, and it doesn't take 4-8 people long to deplane. It's probably too expensive for 1-2 people, but if you've got 4-8, it might be economical, and it'll definitely be very quick.

    13. Re:What's the hurry? by Martin+Blank · · Score: 2

      Those are low speeds for some of the more recently-built craft. An acquaintance bought a plane recently for about $100K which, while limited on features, cruises at about 150 knots and maxes out a little under 180 knots. It's a fun plane to fly, though I can't land it myself since I don't have tail-wheel training. It's also limited on cargo and has only two seats, but since it's just him and his wife, jumping out to Las Vegas or Sacramento (where his parents live) isn't tough to do and doesn't take long.

      The Flight Design C4, currently still in development, is targeting 1320 pounds useful load for a four-seater with a capability of 830 pounds of payload with full fuel. Max range is expected to be 1200NM for the avgas version and 1700NM for the diesel version at 65% and 75% power, respectively. The expected price is sharp at $300,000, but if they can pull it off, a lot of clubs are going to be buying it up as it vastly outperforms a C172 for the same price.

      --
      You can never go home again... but I guess you can shop there.
    14. Re:What's the hurry? by Zordak · · Score: 2

      but since it's just him and his wife, jumping out to Las Vegas or Sacramento (where his parents live) isn't tough to do.

      Man, you have some hard core friends. I'm curious how the plane gets down, though.

      --

      Today's Sesame Street was brought to you by the number e.
    15. Re:What's the hurry? by pegasustonans · · Score: 1

      The types of people who can afford to fly on a hypersonic jet don't wait 2-3 hours with the cattle to get through security or catch a cab.

      Exactly right!

      Those people are too busy watching the hypnotic pattern their vital organs make as they thoroughly paint the passenger capsule while twined loosely in Versace linen.

      --
      And all our yesterdays have lighted fools The way to dusty death. --Will
    16. Re:What's the hurry? by geekoid · · Score: 1

      and you would pay 10 times the price of a first class airline ticket for that?

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    17. Re:What's the hurry? by geekoid · · Score: 3, Interesting

      But the 1 hour 45 minutes waiting, and the flight, can be spent reading, or watching a movie.

      we live in an era of entertainment everywhere.

      I'm not telling you flying is better, only pointing out there are other possible benefits.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    18. Re:What's the hurry? by Anonymous Coward · · Score: 0

      The humanity?

    19. Re:What's the hurry? by ppanon · · Score: 1

      You should hear them applaud at concerts. Once.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    20. Re:What's the hurry? by Grishnakh · · Score: 2

      Well, no, not personally. Besides, a Zeppelin shouldn't be that expensive; it's slow, and the fuel consumption should be low compared to a jet (it doesn't have to burn fuel to generate lift, only thrust). Part of what you're paying for with a jet ride is the speed.

    21. Re:What's the hurry? by Anonymous Coward · · Score: 0

      His post mentioned "we", so I assume his passenger(s) could do those things during the car ride (perhaps negating that particular benefit of flying). I suppose he could as well. If you're paying for the rumble strips, you might as well use them.

    22. Re:What's the hurry? by antdude · · Score: 1

      Don't forget the total cost too.

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    23. Re:What's the hurry? by Anonymous Coward · · Score: 0

      Individual rooms + /. reader == lots of cleaning to do.

    24. Re:What's the hurry? by Boawk · · Score: 1

      I'd rather have...a lay flat bed, and show up the next morning.

      That's how California's new high-speed train's going to work!

    25. Re:What's the hurry? by Anonymous Coward · · Score: 0

      Wow, you must travel through some suck-ass airports. 1-2 hours to GET YOUR BAGS? I think you're exaggerating that just a fucking tad.

    26. Re:What's the hurry? by mykro76 · · Score: 1

      Who says it's for humans? Parcel shipping is growing year on year. A few of these Mach 6 shuttles linking continents makes "same-day delivery" a reality. For a price, of course.

    27. Re:What's the hurry? by chgros · · Score: 1

      Last I heard, jets were going as fast as possible (despite the large increase in fuel consumption from near top speed to top speed) because of the savings in staff costs. So, fuel savings wouldn't necessarily hep that much.

    28. Re:What's the hurry? by Grishnakh · · Score: 2

      You've heard wrong. Jets actually fly quite a bit slower than they used to back in the 70s (when ticket prices were high), specifically to save fuel. They save further costs by packing more people into smaller seats, and cutting out all the extras.(meals) and adding extra charges for other things (luggage fees, optional in-flight movies, optional in-flight WiFi, extra charges for "premium economy" seats (that are slightly more desirable than bottom-barrel economy seats), etc. So yes, fuel savings DO help that much. Staff costs are low anyway. Flight attendants only make around $20k/year or so. Compared to the cost of 60,000 gallons of fuel for one flight, the cost of flight attendants is pretty tiny. Pilot salaries are pretty low too, maybe $80-100k or so for the most experienced, and more like $20k for the new guys. People don't go into aviation for the money.

      Here's an article from MIT about the issue:
      http://engineering.mit.edu/live/news/188-why-hasnt-commercial-air-travel-gotten-any-faster

    29. Re:What's the hurry? by SpaghettiPattern · · Score: 1

      But the 1 hour 45 minutes waiting, and the flight, can be spent reading, or watching a movie.

      The other day we had an article about Google's self driven cars. A compelling solution would mean you could drive long distances and do something else than quality check your steering on the highway.

      For long, boring trips I'd be chuffed to "drive" a self driving car.

      --

      I hadn't the slightest objection to his spending his time planning massacres for the bourgeoisie... (P.G. Wodehouse)
    30. Re:What's the hurry? by Thorodin · · Score: 1

      Completely off-topic, but I noticed you wrote Fredricksburg, TX. I've been thinking of visiting that museum on the war in the Pacific (WW2 for you youngsters). I'll be heading to Dallas for a few days. I thought maybe I'd use one of them to visit the museum. If you've been there, what are your impressions? Is it a large musuem with a lot of equipment\displays?

    31. Re:What's the hurry? by overmod · · Score: 1

      OK, fine... now

      1) the trip still takes 2 more hours;
      2) the trip still probably costs hundreds more
      3) now I'll have all kinds of problems connecting to compromised airport hotspots (etc. etc. etc.)

      Note that everyone but the driver can be using telephone broadband, or perhaps satellite, while traveling; all the other examples of entertainment or useful activity probably translate at least as well to riding in your own car as sitting in some airport lounge... and you don't need to worry about your checked bags being pilfered, or your carryons being cause for red alert if left unattended...

    32. Re:What's the hurry? by xzvf · · Score: 1

      Customs and baggage when flying internationally. Does take that long plus I said "and getting transportation". Many airports have lines for taxis, buses/trains to rental car lots, and even the walk to the mass transit. Some airports are better than others, but 1-2 hours to get "bags and transportation" is not excessive.

  9. I don't think we need to go Mach 6 by Anonymous Coward · · Score: 1

    I don't believe we ever need to go this fast in an airplane (in our atmosphere). There is simply too much risk going this fast for a consumer based vehicle. The hypersonic public transport will never see the public market. - it may make it briefly, but will shut down after the first one disintegrates and they can't even find ashes of the crew and passengers.

    I believe the current aircraft are sufficent for our current travel around the globe.
    i also believe the future of transportation is in fully automated driving cars/trucks/buses. once this has been mastered, we'll work on fully automated consumer based flying vehicles.

    1. Re:I don't think we need to go Mach 6 by Anonymous Coward · · Score: 3, Funny

      Yeah, 640 mph oughta be enough...

    2. Re:I don't think we need to go Mach 6 by Jeng · · Score: 3, Informative

      Initially this will be for better cruise missiles, only after the technology has matured would they consider it for human transport.

      --
      Don't know something? Look it up. Still don't know? Then ask.
    3. Re:I don't think we need to go Mach 6 by Dahamma · · Score: 2

      How do you know what the risks will be after the technology is commercialized? The Concorde only had one crash in its history, and that was on takeoff due to a blown tire and debris hitting the wing under the fuel tanks.

      And yeah, I'm sure everyone agrees the future of intercontinental travel is undoubtedly in automated cars...

    4. Re:I don't think we need to go Mach 6 by ColdWetDog · · Score: 1

      Initially this will be for better cruise missiles, only after the technology has matured would they consider it for human transport.

      Really? Can we get rides on regular cruise missiles now?

      That would be fun. For a while, at least.

      --
      Faster! Faster! Faster would be better!
    5. Re:I don't think we need to go Mach 6 by Grishnakh · · Score: 1

      The future of intercontinental travel is in underwater vacuum trains. NY to London in 45 minutes.

    6. Re:I don't think we need to go Mach 6 by lobiusmoop · · Score: 1

      Just for fun, the fictional MiG-31 aircraft from the movie Firefox was capable of Mach 6, the advantage presumably being that it could simply outrun any incoming attack.

      --
      "I bless every day that I continue to live, for every day is pure profit."
    7. Re:I don't think we need to go Mach 6 by geekoid · · Score: 1

      The advantage of a plane doing that speed is that it can drop it's bombs and be out of the territory before they hit the target. With stealth, you now have a pretty intimidating way to attack.

      Assuming you can think in Russian~

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    8. Re:I don't think we need to go Mach 6 by ppanon · · Score: 1

      I've been thinking about that. I think you would do NY-SF, Seattle-San Diego and Boston-Miami (and European routes) with a few selected optional stops long before you tackled trans-ocean. Apart for crossing the San Andreas fault, most of the NA routes are on a single continental plate, and you could cross the SA fault on the surface at lower speeds since it's so close to the SF terminus. Crossing the mid-Atlantic trench under the pressure of miles of water and engineering it to endure the trench's heat, chemical soup, and seismic activity, that's a completely different ball game (and category of liability insurance).

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    9. Re:I don't think we need to go Mach 6 by Grishnakh · · Score: 1

      Crossing the Atlantic wouldn't be that hard. You don't put the vacuum tunnel on the sea floor, you float it so that it's not that far below the surface of the water (deep enough to avoid storm waves), and is anchored to the floor with flexible cables so that it can move around a fair amount. Crossing the continent on land seems like it'd be harder because of seismic problems; you don't have seismic problems in water.

    10. Re:I don't think we need to go Mach 6 by DiscoDave_25 · · Score: 1

      Really? Can we get rides on regular cruise missiles now?

      That would be fun. For a while, at least.

      Well we can, sort of, if you think that the cruise missiles today are really just small jet aircraft and we can quite easily ride in large jet aircraft today from any airport.

    11. Re:I don't think we need to go Mach 6 by overmod · · Score: 1

      Ashes? Do you really think a catastrophic failure at piddling Mach 6 will burn people to ashes?

      Hint: They recovered bodies from Columbia. And did postmortems on them that revealed the actual cause of death from hypersonic accident: autogenous shockwaves.

      The aerodynamic heating is the result of protracted powered flight. Stop the propulsion and the pieces will slow down FAST.

      Mach 25+, in plunging recovery trajectory... maybe. But surely not Mach 6 to 10.

      Now, you could have made the point about just about any incident to a hypersonic aircraft resulting, nearly inevitably, in 100% fatalities. Hamburger is not much less appalling than ashes. On the other hand, commercial crashes very often produce that level of trauma (albeit by 'other means') and that doesn't seem to be dissuading a wide range of people from flying...

    12. Re:I don't think we need to go Mach 6 by Arrepiadd · · Score: 1

      I don't believe we ever need to go this fast in an airplane (in our atmosphere).

      It would be interesting to go back and read newspapers from a time when cars or trains started showing up, or to listen to what people said back then. I'm certain there would be some stating: "What's the point on having these traveling machines? All our needs are covered by horses and these vehicles will be a fad that rapidly goes away."

  10. How curious... by fuzzyfuzzyfungus · · Score: 5, Insightful

    It's always a little strange to see the 'New York to London' figure given for something that is fairly clearly intended for blunt-force diplomacy, not passenger travel.

    We ditched the Concorde years ago because there weren't enough customers to make flying that fast economic.

    1. Re:How curious... by Anonymous Coward · · Score: 1

      It's always a little strange to see the 'New York to London' figure given for something that is fairly clearly intended for blunt-force diplomacy, not passenger travel.

      The summary said nothing about passenger travel.

      It could be carrying a warhead.

      Seriously, a variety of cameras and instruments for reconnaissance and intelligence gathering would be more useful.

      War isn't just about blowing things up.

    2. Re:How curious... by Anonymous Coward · · Score: 0

      we ditched it because of noise regulation. The Concorde made a large sonic boom, newer hypersonic craft make as little as 1 percent of what the Concorde was capable of.

    3. Re:How curious... by couchslug · · Score: 4, Funny

      "It's always a little strange to see the 'New York to London' figure given for something that is fairly clearly intended for blunt-force diplomacy, not passenger travel."

      Lest we forget, US has fought two wars against Britain, which killed thousands more American civilians than any aggressor since.

      The only thing keeping the Brits in their box is DETERRENCE!!

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
    4. Re:How curious... by Anonymous Coward · · Score: 0

      Lest we forget, US has fought two wars against Britain, which killed thousands more American civilians than any aggressor since.

      I think you'll find more American civilians were killed by fellow Americans than any aggressor before or since.

      The most devastating war on American soil was perpetrated by Americans against themselves.

    5. Re:How curious... by fuzzyfuzzyfungus · · Score: 2

      Strictly speaking, that conflict was Americans vs. Southerners...

    6. Re:How curious... by Anonymous Coward · · Score: 0

      Strictly speaking, that conflict was Americans vs. Southerners...

      There are a few jokes in there somewhere, but coming up with them is bumming me out.

    7. Re:How curious... by Grishnakh · · Score: 3

      No, we ditched it because of fuel efficiency. SSTs use a ridiculous amount of fuel. The Concorde had no trouble with sonic booms over the Atlantic (no one cares out there), and transatlantic flights are very popular these days (why do you think they have so many 747s that make the trip every day?). But that demand wasn't enough to make up for the insane ticket price caused mostly by all the fuel needed.

      Heck, even jet aircraft use a lot of fuel compared to piston-driven aircraft; they only get really economical when they carry lots of people. The only way a supersonic plane would be economical is if it carried a few thousand people somehow.

    8. Re:How curious... by Anonymous Coward · · Score: 0

      aggressor? maybe the US should be spending a bit of time learning about the war of 1812 as we are up here in the colonies. http://en.wikipedia.org/wiki/War_of_1812

    9. Re:How curious... by Anonymous Coward · · Score: 0

      War of 1812? Hmm...

    10. Re:How curious... by geekoid · · Score: 1

      Yeah, you would thing Germany to London would be a better example~

      Better planes and technology may make it more cost effective.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    11. Re:How curious... by couchslug · · Score: 2

      The Brits didn't declare war first, but were supporting Native Americans as proxy warriors against the US. Impressment ("capture and enslavement") of US sailors was clearly an act of aggression.

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
    12. Re:How curious... by khallow · · Score: 1

      I think you'll find more American civilians were killed by fellow Americans than any aggressor before or since.

      But that wasn't a FOREIGN aggressor. And frankly, more Americans (and more people in general) have been killed by Kansas swine than any American aggressors.

    13. Re:How curious... by ppanon · · Score: 1

      He may not have been talking about that. Let's look at the US Civil War - approx 625,000 dead. WWII comes a close second at 405,000+.

      From 1990 to 1997, there were 293,781 firearm deaths - homicides, suicides, and unintentional shootings. Even with more than half of those deaths being suicides, that still leaves a lot of Americans being killed, intentionally or accidentally, by their fellow citizens in less than a decade, albeit one with a peak in gun violence. And while only about 90,000 (or 1/3) of those were homicides using handguns, there's some more deaths from accidental shootings, as well as murders with other guns and knives. With more than 10,000 homicides in each year since 1975, it's pretty likely that the number of "peacetime" killings of Americans by other Americans significantly exceed the number of deaths in the US Civil War.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    14. Re:How curious... by idomagic · · Score: 1

      It's always a little strange to see the 'New York to London' figure given for something that is fairly clearly intended for blunt-force diplomacy, not passenger travel.

      Just like car racing and F1 has improved and generated many technological advances in and for regular road cars, military tech development and research is usually, in one way or another, also matured into improved consumer technology; jet engines and the Internet beeing prime examples.

      Basically, even if this research is as single mindedly focused for pure military use, as you make it out to be, it will eventually also be of use for the general consumer.

    15. Re:How curious... by Anonymous Coward · · Score: 0

      It's always a little strange to see the 'New York to London' figure given for something that is fairly clearly intended for blunt-force diplomacy, not passenger travel.

      And that should remind you of the implicit bias in our media, especially with (amoral) technology which are inherently dual-use. When you're consuming the media, just be aware that framing the argument is more powerful than winning the debate.

      When Iran is enriching uranium to civilian grade (less than 5%), our media (liberal and conservative) will focus on the potential of using the same technology to enrich to weapons-grade (85%). And after a while, the word "potential" gets lost as it becomes an implied fact that Iran is building a nuclear weapon.

      The airline industry has been moving towards slower speeds and more efficient flights over the past decade or two. Even without having to carry oxiders, this technology (while very, very cool) is not going to be used for civilian flights for many decades. It's clearly developed for military purposes, but it's double-speak.

    16. Re:How curious... by painandgreed · · Score: 1

      Strictly speaking, that conflict was Americans vs. Southerners...

      Nope. Southerners lost the war and therefore rectroactively, the Southern States never left the union, but were merely in rebellion. Once the American rebels were put down, things could continue as normal.

    17. Re:How curious... by Anonymous Coward · · Score: 0

      Heck, even jet aircraft use a lot of fuel compared to piston-driven aircraft; they only get really economical when they carry lots of people.

      Jet vs piston is a strange comparison. My guess is you mean jet vs propeller. Plenty of propeller planes use turbines like jets, because they are more efficient and reliable than pistons. Turboprops do cost a bit more. Also, jet engines are very efficient for long routes because they can climb high into the thin air. Wikipedia has more details. While you are right about supersonic flight, the trade offs between turboprops, turbofans, turbojets and pistons is far more complex than you mention.

    18. Re:How curious... by wildstoo · · Score: 1

      They had sufficient passengers to make operation viable until all the airlines were squeezed post-9/11.

      It was that coupled with the increasing costs of maintaining the aging Concorde fleet that doomed them.

      I believe there is plenty of demand for faster air travel. My brother lives in Dallas, I live in Scotland, and the thing I hate most about visiting him (insert Texas joke here) is the 10-11 hour flight between Heathrow and DFW.

      If I could pay a bit more and shave several hours off that time, I would do it in a heartbeat.

    19. Re:How curious... by Grishnakh · · Score: 1

      Wrong. I mean piston vs. jet. Piston engines are much more efficient than turbines. They don't have the power-to-weight ratio though, but that's less important in a fixed-wing aircraft than a helicopter. Check out the fuel burn on a small (4-6-seat) private jet compared to a piston plane with the same seating; the piston plane uses a fraction of the fuel (and there's no cost advantage for jet fuel either vs. avgas).

  11. we reached that speed in the 1950's! by Anonymous Coward · · Score: 3, Informative

    https://en.wikipedia.org/wiki/X-15

    First flew in 1959. Reached Mach of 6.04 at one point. Had a pilot in it, not just a drone.

    1. Re:we reached that speed in the 1950's! by Spy+Handler · · Score: 2

      that was done at the edge of space where the air is almost nonexistent. It was basically a spacecraft at that point, not an airplane.

      I didn't RTFA but I'm guessing the Waverider is being tested at much lower altitude to study hypersonic dynamics and scramjet efficiency and stuff.

    2. Re:we reached that speed in the 1950's! by jacknifetoaswan · · Score: 3, Informative

      The X-15 was a rocket-powered aircraft. This is a Scramjet, and it's a technology demonstrator. It's not about the speed, it's about developing the technology to achieve workable Scramjet designs.

    3. Re:we reached that speed in the 1950's! by geekoid · · Score: 1

      Mach 6 at the edge of space is a different speed the mach 6 at a lower altitude.

      M=V/a

      V being Velocity, and a being what ever you are travelling through.
      For more details, .. you know where to go.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    4. Re:we reached that speed in the 1950's! by k6mfw · · Score: 1

      First flew in 1959. Reached Mach of 6.04 at one point. Had a pilot in it, not just a drone.

      In 1959, service stations provided service (even gave out free maps), women dressed like women, and 4-wheel drive vehicles were used as 4-wheel drive vehicles.

      X15 was a technology demonstrator like the X51 but with the former, you can get an autograph (though not sure of this ebay item but you get the idea),
      http://www.ebay.com/itm/X-15-Test-Pilots-Neil-Armstrong-6-Autographs-Print-/160631385970

      --
      mfwright@batnet.com
    5. Re:we reached that speed in the 1950's! by necro81 · · Score: 1

      And the X-15 was a rocket, not an air-breather. Sure, if you can carry your fuel and oxidizer with you, you can get to really insane speeds. This program isn't seeking a speed record; it is trying to develop a new class of propulsion.

  12. travel from New York to London in just one hour by Nutria · · Score: 1

    Why is this obviously Not Gonna Happen concept *constantly* trotted out in regards to hypersonic flight, when writers should be acknowledging that such meaningful (ie, passenger and cargo) flights will never happen.

    --
    "I don't know, therefore Aliens" Wafflebox1
    1. Re:travel from New York to London in just one hour by Baloroth · · Score: 5, Insightful

      when writers should be acknowledging that such meaningful (ie, passenger and cargo) flights will never happen.

      "Never" encompasses a very long period of time, and should almost never be used in speaking about technology. I'm sure 250 years ago people would have also said it would never be possible to communicate with another person on the other side of the planet in real-time, and yet here we are.

      --
      "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
    2. Re:travel from New York to London in just one hour by fotbr · · Score: 1

      A warhead could be considered a kind of cargo on a one-way trip, signature not required. Depending on who you're talking to, a scramjet powered cruise missile might be very meaningful.

    3. Re:travel from New York to London in just one hour by Nutria · · Score: 1

      Langley to Paris, but not NYC to London...

      --
      "I don't know, therefore Aliens" Wafflebox1
    4. Re:travel from New York to London in just one hour by Nutria · · Score: 2

      Yet scientists/engineers have learned a hell of a lot in 250 years, among them (a) what kind of shapes are required to successfully pass Mach 1, and (b) how much extra energy is required to double from Mach 1 to Mach 2 and then double again to Mach 4.

      Bog standard humans have learned at what point the extra speed isn't worth the stupendous extra cost.

      This is why civilian aircraft reached their approximate speed peak 55 years ago with the Boeing 707 and has settled around 0.85 Mach 44 years ago with the Boeing 747. Everything else since then has been reducing noise and fuel consumption. Even in airplane size, the 747 was the biggest passenger plane for 35+ years.

      --
      "I don't know, therefore Aliens" Wafflebox1
    5. Re:travel from New York to London in just one hour by ppanon · · Score: 1

      As Grishnakh pointed out, travelling through evacuated tubes, probably using maglev trains, is the best technological candidate for public super/hypersonic transport since it removes the friction losses from air resistance that make supersonic flight cost prohibitive. There would nevertheless still be some ongoing monitoring, maintenance, and pumping costs in maintaining a sufficiently high vacuum.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    6. Re:travel from New York to London in just one hour by Nutria · · Score: 2

      Some monitoring and maintenance? The problems, just off the top of my head, of a suspended-in-the-middle-of-the-sea scheme which would need to be high enough to pass over the highest peaks yet deep enough to not be affected by wave action are:
      (a) multiple ocean currents shearing it,
      (b) the weight of the cables would be stupendous,
      (c) the pressure on the 3,000 mile long tube at 1,000 m would be 1470 psi,
      (d) salt water is *very* corrosive,
      (e) one manufacturing or construction mistake and the high pressure water instantly destroys it, killing everyone in the 3,000 mile tube,
      (f) exposure to terrorism, and
      (f) lastly and by no means least: EXPENSE.

      While I'm sure that for a few trillion dollars it could be built, the you and Grishnakh must first answer, "Why?" 550 mph is a Good Enough balance between time and money, though if you *really* want to get lots of stuff get faster from Here to There, invent some new ship hull design or coating to reduce friction or maybe a new, high-efficiency engine which allows the ship to go faster while using the same amount of fuel that they use now.

      --
      "I don't know, therefore Aliens" Wafflebox1
    7. Re:travel from New York to London in just one hour by ppanon · · Score: 2

      Actually, I agree with you on (a)-(f). The advantages of using a subterranean tunnel, which is implied in my post, is that it's much less externally exposed to terrorist actions and, while the pressure would be huge under the ocean floor, more of the pressure could be redistributed into/supported by the surrounding rock with the obvious remaining problem being tectonic plate boundaries. Of course, digging tunnels through rock just makes your last point, expense, even more relevant.

      However, suppose EMCC manage to get the funding and Polywell technology working for a WB-D 100MW p-B demo plant. Line up 5-10 of them on a train (to keep the cross-section small) and you've got a lot of self-contained power that give you a lot more options for tunnelling than your typical carbide/diamond borers: direct thermal application, railgun-launched metal projectiles that could be picked out of the tailings by magnets and reformed/re-used, high-pressure water jets, or some combination of these or other techniques that might give you orders of magnitude faster and cheaper boring rates than currently available.

      Why? Because if you've got p-B fusion then electricty is cheap and relatively clean, Nb for superconducting magnets become cheaper (it's refined from niobium oxide concentrate through electron beam refining), while jet fuel combustion pollutes with both greenhouse gases and other pollutants and is based on non-renewable crude oil. Most transportation and industrial production can be switched to using fusion-produced electricity, but probably not flight (at least not at current jet speeds, let-alone supersonic). An evacuated subterranean line can go from downtown to downtown, requires less intrusive and time consuming security screening than flight-based transportation because the failure modes are more limited, will likely require less power to operate, and would provide significant improvements in travel times at all stages of the process. Once the tunnels are built, large planes will be useless for anything other than transcontinental travel. For scenic flights you would probably use dirigibles instead. Really, with pB fusion available, the question becomes: why not?

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    8. Re:travel from New York to London in just one hour by Nutria · · Score: 1

      subterranean tunnel

      with pB fusion available, the question becomes: why not?

      Two words: Mid-Atlantic Ridge.

      --
      "I don't know, therefore Aliens" Wafflebox1
    9. Re:travel from New York to London in just one hour by ppanon · · Score: 1

      Yes, I think that was the point of my post on the other thread and why I recommended continental travel at first. Crossing plate boundaries underwater like the mid-Atlantic ridge or the Pacific ring of fire are ridiculously difficult engineering problems. However just eliminating continental air travel would make a huge dent in jet engine pollution.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    10. Re:travel from New York to London in just one hour by Nutria · · Score: 1

      If there was solid and uniform bedrock all over the country, and vacuums were easy to maintain, and tunnels were cheap and easy to build, then it would be a great idea.

      Sadly, none of those are true.

      --
      "I don't know, therefore Aliens" Wafflebox1
    11. Re:travel from New York to London in just one hour by ppanon · · Score: 1

      Thinking about it some more, you might be able to cross the MAR on the surface at Iceland. It would be a big detour and still a very nasty engineering problem, but not a ridiculously difficult/impossible problem. There would be a big detour too, but you might still beat subsonic flight transit times.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    12. Re:travel from New York to London in just one hour by ppanon · · Score: 1

      Dig deep enough and you get bedrock, though admittedly not uniform. You would probably avoid going high-speed and deep through areas like the New Madrid Seismic Zone and the San Andreas Fault though, but the most of the continent is pretty seismically stable, which should be good enough. Yes, tunnels are not currently cheap and easy to build, though I think I have provided a scenario in which that could change. Maintaining the vacuum is a tricky but not intractable engineering problem. You would probably need to run power down the tunnel for monitoring equipment, so that could power pumps as well.

      RIP Harry Harrison :-)

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
  13. 1 hour flight by ozduo · · Score: 0

    but be at the airport 3 hours before departure for screening process and allow for 3 hours of screening at the destination

    --
    I got to the chocolate box before you, that's why the hard ones have teeth marks.
    1. Re:1 hour flight by overmod · · Score: 1

      It's pretty clear that in the age of any "practical" hypersonic aircraft, endoatmospheric or semiballistic, passengers who can afford the service will NOT be ambling through security lines with the hoi. Regardless of how capacious the aircraft are.

      In fact, I'd expect that along with the technology would come a 'pre-approved' security list, with some combination of biometrics and other ID data, that will permit the 'privileged' to pass quickly through the airport infrastructure... WITHOUT compromising the level of security that supposedly exists today. (And if this technology comes at a higher price to the travelers concerned... well, if they had to ask, they couldn't afford it, either... ;-})

  14. Good news everyone by DeTech · · Score: 2

    "While the hypersonic flight test didn't go very well, we're making excellent progress in artificial coral reef dispersion."

  15. why they post the speed in LA-NY terms by ThorGod · · Score: 3

    They include that bit about "from LA to NY in one hour" so that people can grasp how fast the speed is.

    It isn't meant to make you conjure up a day where you'll be flying that speed. It isn't meant to sell you on an airline ticket in the future...it's simply a way to communicate speed to a broader audience. Anything you think of beyond the raw speed involved is *you* day dreaming.

    --
    PS: I don't reply to ACs.
    1. Re:why they post the speed in LA-NY terms by ThorGod · · Score: 1

      "New York to London in just one hour"

      Woops, got the reference wrong! :P

      --
      PS: I don't reply to ACs.
    2. Re:why they post the speed in LA-NY terms by sconeu · · Score: 1

      Please, that's not canonical units.

      How many football fields per fortnight is it?

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
    3. Re:why they post the speed in LA-NY terms by Anonymous Coward · · Score: 0

      I think we should to measure the wasted words in this discussion in units of Library of Congress...

    4. Re:why they post the speed in LA-NY terms by Nutria · · Score: 1

      It isn't meant to make you conjure up a day where you'll be flying that speed.

      Except that somewhere along the way, some lib arts major misunderstood that.

      --
      "I don't know, therefore Aliens" Wafflebox1
    5. Re:why they post the speed in LA-NY terms by El_Oscuro · · Score: 1

      The SR-71 flew from its base in Palmdale, CA to Dulles in an hour, about 2,600 miles for its final retirement flight, about 10 years ago. It was operational in the 1960's. I got to look at one up close in the 1970's. Coolest. Plane. Ever. NY- London is about 3,400 miles. So we have improved, what, about 20% in the last 50 years? And we still can't get it right?

      --
      "Be grateful for what you have. You may never know when you may lose it."
    6. Re:why they post the speed in LA-NY terms by RivenAleem · · Score: 1

      And 1.7 km per second doesn't make people drop their jaws?

      From home to work faster than you can get out of your parking space.

    7. Re:why they post the speed in LA-NY terms by overmod · · Score: 1

      No, we can get it right; it's just that we're still using the old airframe technology.

      We stopped working toward better airframes with the end of (choose one) the B-70, the 2707, or Bartini's A-57. Even the Shuttle is an abortive kludge of aluminum construction with fancy short-term insulation -- and Columbia proved to our sorrow just how disgraceful that kludge was.

      I suppose the 'nice' part is that so much of the titanium and other exotic-metal fabrication tech was done, and is essentially costed-down, today... for when we arrive at a need for it. That need is certainly not in place for NY-LA in something as slow as endoatmospheric Mach 6 -- the sonic-boom problem is still there, perhaps with considerably more energy in parts of the noise power spectrum. You'd need a full semiballistic trajectory with the acceleration and deceleration 'transition' phases out over the ocean somewhere to get the trick to work NY-LA... but the flight time, even measured 'correctly' (say from wheels-off to touchdown) might be less than 60 minutes, net of all maneuvering. Just don't ask about the fuel bill! (Go back and look at the old Lockheed GOOFUS report about commercial hypersonic 'transports'...)

    8. Re:why they post the speed in LA-NY terms by cthulhu11 · · Score: 1

      Does that "one hour" estimate include acceleration and deceleration (*) to top speed? * yeah yeah I know deceleration is just acceleration in the other direction, but muggles don't understand that.

  16. Can we stop with the New York to FOO comparisons? by Gothmolly · · Score: 1

    The FLIGHT time is 1 hour, down from 5ish hours. You will still have 2 hours of crap security and airport "stuff" to do on either end. This is not a game changer for intercontinental flight. It's not like there's legions of people screaming "If you can get me there in an hour I'll pay a million dollars!" Concorde failed for a reason.

    --
    I want to delete my account but Slashdot doesn't allow it.
  17. It's not about the speed by Overzeetop · · Score: 5, Informative

    It's not about flying that fast, it's about operating a supersonic combustion engine to produce positive net thrust. Anyone can stick a rocket on the back of a tube and fly fast, but you have to carry all of your oxidizer with you (or use a monopropellant). With this you just carry the fuel and let the shock transition form the compressor for your jet engine. Of course, it's not quite that simple, since you can't slow down the flow to be subsonic and still achieve + thrust, so you've got to make combustion occur in a flow that's faster than the speed of sound.

    --
    Is it just my observation, or are there way too many stupid people in the world?
    1. Re:It's not about the speed by timeOday · · Score: 1

      Somebody in another forum told me the scramjet engine only has a 2x thrust to weight ratio (much less than any decent rocket engine) so the technology isn't promising. Do you know if there is any theoretical argument on why that could not be improved? Also could a scramjet be used as a more effective "afterburner" stage on some other type of engine for subsonic or merely supersonic (but not hypersonic) aircraft?

    2. Re:It's not about the speed by Anonymous Coward · · Score: 3, Informative

      Scramjets are only efficient to operate aver Mach 3 to 4. They need that level of speed since they get all of their compression from shaping the incoming flow. While the thrust to weight ratio is worse than a rocket but its specific impulse is greater it can fire for much longer than a rocket since it only needs to carry fuel and not oxidizer. The thrust to weight ratio is pretty much fixed by the flow velocity and combustion thermodynamics.

    3. Re:It's not about the speed by Anonymous Coward · · Score: 1

      I thought another definition of "speed of sound" was the maximum speed a physical disturbance could propagate through a medium. If that's so, how would the combustion process not be blown out the tailpipe? By definition, the fuel and air is passing out the tailpipe faster than the combustion can propagate through the mixture.

    4. Re:It's not about the speed by Overzeetop · · Score: 2

      And that's what makes it so f*cking difficult, or so I'm told. The last time I heard much about scram was in my senior compressible aero class in the early 90s. Back then, only the Russians had gotten combustion, but it still produced negative thrust and it occurred on the downward arc of a ballistic trajectory that resulted in a very deep core sample of the Siberian tundra.

      Yes - typically any flame front in a medium moving faster than the speed of sound within that medium is usually considered a "detonation". I'm honestly not familiar enough with the internals to say what actually occurs or how they make the whole thing viable.

      --
      Is it just my observation, or are there way too many stupid people in the world?
    5. Re:It's not about the speed by timeOday · · Score: 1

      Scramjets are only efficient to operate aver Mach 3 to 4.

      Well, that's what I meant by using it as the final stage of another engine that gets the air up to mach 3.5 and then blows it over the scramjet which then spits it out the back at mach 7 or whatever. If the plane only needs to go mach 0.8, you wouldn't have to accelerate that much air to get the required thrust, if you were accelerating the air by so much.

    6. Re:It's not about the speed by Anonymous Coward · · Score: 1

      That would actually be worse. The reason we are going to high bypass turbojets is to reduce exhaust velocity, by increasing exhaust mass.

      I=mv but E=mv2

      In English, doubling either mass or velocity doubles thrust, but doubling mass only doubles energy cost, while doubling velocity is 4 times the energy. The only reason to go high exhaust velocity is if you are going fast yourself, since no vehicle can exceed its own exhaust velocity.

      And /. doesn't support <sup>.

    7. Re:It's not about the speed by timeOday · · Score: 1

      Thanks, that is a good explanation.

    8. Re:It's not about the speed by overmod · · Score: 1

      Another point you meant to make is that, since so much of a turbojet/fan engine's power is needed to drive the compressor, much more of the energy in the scramjet's fuel can be translated into actual propulsion impulse.

      With regard to the afterburner question... not exactly, but look at the SR-71 for an example of how an engine can transition from turbine to ramjet power. Problem is that a scramjet configuration doesn't work as well transitioning around 'round' engines, so there are problems not only with jet but also with PDEs like the 'Aurora' engines. (Probably best to keep the two power systems strictly separate, and optimize each for its 'best' speed range and fuel characteristics...)

  18. Fast by Anonymous Coward · · Score: 1

    So a scramjest gets you to the scene of the accident faster?

    That's progress.

  19. or maybe Kansas to Iran... by Thud457 · · Score: 1

    It's always a little strange to see the 'New York to London' figure given for something that is fairly clearly intended for blunt-force diplomacy, not passenger travel.

    Yeah, shouldn't the canonical flight-time be from the Hauge to London?
    what, too soon?

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

  20. Suborbital, anyone? by NalosLayor · · Score: 1

    Am I the only one who doesn't see why suborbital point-to-point isn't a thing? Anywhere on the planet in 90 minutes, and less air resistance on the way.

    1. Re:Suborbital, anyone? by Anonymous Coward · · Score: 0

      If it has a launch profile like a ballistic missile, and a ballistic, suborbital flight path, it must be a ballistic missile... that's why.

    2. Re:Suborbital, anyone? by spauldo · · Score: 2

      I know the U.S. Marines were interested in a suborbital deployment system, where they could put marines on your doorstep anywhere in the world in a couple hours' notice.

      I'm not sure where I read about it (probably here, actually), but it's been a while.

      --
      Those who can't do, teach. Those who can't teach either, do tech support.
  21. Heart breaking by Grayhand · · Score: 1

    Sad that they didn't even get to fire the scramjet. If they are still having this much trouble it may put to bed rumors of a scramjet operating in the 90s. I'd still love a good explanation for the contrails, the cotton balls with a string through ones. They haven't been seen before or since so it was obviously some kind of military test. The most logical still would be a scramjet given the pulse nature of the trails.

    1. Re:Heart breaking by Anonymous Coward · · Score: 0

      If they are still having this much trouble it may put to bed rumors of a scramjet operating in the 90s.

      Evidence-wise, it's quite the opposite, as you are comparing well-funded and presumably well-manned "golden age" military programs to semi-amateur cheapass NASA experiments: if the latter reach a respectable "almost flying, maybe next time" success level with three or four launches, the former are very likely to have produced working aircraft.

  22. In Soviet Russia... by Anonymous Coward · · Score: 0

    ...survivors bury YOU!

  23. Finally a flight with no screaming infants. by SuperKendall · · Score: 3, Funny

    At 6x the speed of sound, no-one can hear your baby scream.

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
  24. Non-alarming warhead delivery by DragonWriter · · Score: 1

    Considering that this things is meant for delivering warheads in a non-alarming manner ..

    In that case, its a success, because the only non-alarming manner I can think of delivering warheads is crashing long before the intended target.

    Well, non-alarming to the target, at any rate.

    1. Re:Non-alarming warhead delivery by savuporo · · Score: 1

      Sort of a success yes, at least it will not set off orbital and ground based ICBM detection systems - which is the ultimate goal for hypersonic missiles. Capability of aborting the strike, and oh, hitting the target would be nice to have too, of course.

      --
      http://validator.w3.org/check?uri=http%3A%2F%2Fwww.slashdot.org Errors found while checking this document as HTML5!
    2. Re:Non-alarming warhead delivery by nitehawk214 · · Score: 1

      Sort of a success yes, at least it will not set off orbital and ground based ICBM detection systems - which is the ultimate goal for hypersonic missiles. Capability of aborting the strike, and oh, hitting the target would be nice to have too, of course.

      I never understood this reason. Is there some rule that says they cannot put a nuclear warhead on the cruise missile? Or does it simply evade missile detection systems because it is flying so low?

      --
      I'm a good cook. I'm a fantastic eater. - Steven Brust
    3. Re:Non-alarming warhead delivery by savuporo · · Score: 1

      It evades missile detection systems primarily because it's not flying a rocket powered ICBM trajectory. And by going so fast, ground based radars would have a hard time tracking it. US does not have any "fast" cruise missiles in their arsenal right now, the bet was made on stealth instead ( AGM-129 ). China, Russia, and India have supersonic missiles in their arsenal, and hypersonics under development.

      And no, nothing prevents cruise missiles from carrying nuclear warheads, most of them are designed for it. It's just much easier to shoot down subsonic cruise missiles than it is ICBMs that come in at hypersonic velocities.

      --
      http://validator.w3.org/check?uri=http%3A%2F%2Fwww.slashdot.org Errors found while checking this document as HTML5!
  25. According to Wikipedia, it was the crash by tlambert · · Score: 1

    The retirement wasn't over fuel efficiency, since if you were paying to fly that fast, you'd pay a premium anyway. According to Wikipedia: "As a result of the type’s only crash on 25 July 2000 and other factors, its retirement flight was on 26 November 2003."; see: http://en.wikipedia.org/wiki/Concorde

    Fuel is not cited as one of the factors. It might well have been retired for that reason in the current cost climate, and fuel economy prevented them being purchased by airlines after the 707, 747, and DC-10, but they were profitable up to the day they were retired.

    1. Re:According to Wikipedia, it was the crash by Grishnakh · · Score: 1

      They were only profitable enough to have a handful of aircraft. That's not really very profitable. If you want something that's going to become commonplace, you need something that doesn't just cater to the mega-wealthy (many of whom would probably rather just take their own private subsonic jet instead of having to share space on an SST with other passengers, even if they're all a bunch of rich people). The Concorde could never become commonplace, because of the fuel consumption (and to a much lesser extent, the sonic booms). There's just no way you're going to build a giant airline business transporting hundreds or thousands of passengers a day with ticket prices of $5-10k/seat. Contrast this to the jets that fly transatlantic every day carrying probably thousands of people a day for maybe around $500. Do you think a crash of a 747 or some Airbus model is going to cause all those jets to be taken out of service? Of course not. They even had an Air France crash not that long ago (it had taken off from Brazil and crashed into the ocean, killing everyone); did all Airbus A330 flights suddenly get canceled? No, there's over 400 such planes still flying. However, the Concorde crash wasn't even due to problems in the plane, but faulty maintenance on a totally different plane which left debris on the runway. Even so, the plane kept flying, but eventually they shut it down because, according to Wikipedia, rising maintenance costs and decreased passenger volume. Too few passengers + excessive costs = economically non-viable. You don't see other planes completely taken out of service because of the post-9/11 slump in air travel or a single accident.

      I don't know what the projections are for this scramjet stuff, but if it has the same fuel consumption problems that cannot be overcome, then this is largely a waste of time and money too. Oil is getting more and more expensive, and gas-guzzling things like this aren't ever going to become economical. Of course, this is obviously really just another bloated, money-wasting American military project, so it goes on. Why exactly do you need a Mach 6 cruise missile to fight "insurgents" armed with AK47s, anyway?

    2. Re:According to Wikipedia, it was the crash by able1234au · · Score: 1

      I knew someone who flew on the concorde once (only once). He said that even though it was supposed to be all first class it wasn't all that comfortable. The plane was small and because of the speed it was noisy and hot (perhaps the aircon was on the blink). He said the plane hit an airpocket and he spilled his red wine on his shirt which wasn't impressing him. But it WAS fast, though this was before the days of long security checking lines.

  26. Air Charter by zenyu · · Score: 1

    If you can afford 1st class it's really worth looking into, especially if considering more than one seat. With a smaller plane many more airports are open to you, including all the ones without the security theatre. You arrive find your pilot in the lounge and you are on up in the air a few minutes later.

    There is a reason airlines are reducing and eliminating their 1st class cabin on domestic routes (though they usually call their business class "domestic first class" or some such). Most of the 1st class seats are filled with upgrades from business class or miles redemptions. The 1st class seats that sell tend to only be on a few routes like NYLA because union rules require that actors be booked in the 1st class cabin. http://www.onesky.com/ and http://www.rsvpair.com/ can help you find a charter.

  27. Re:Can we stop with the New York to FOO comparison by spauldo · · Score: 1

    A lot of people can't visualize 4,300mph. Saying, "New York to London in an hour" makes it easier to visualize.

    For me, it's about two weeks' worth of driving per hour. I'm not sure how you would visualize it.

    Considering this is an unmanned drone, any passengers would have to be strapped to it. Somehow I doubt anyone willing to try that would have been the same type of customer the Concorde was designed for (but probably the type of customer padded rooms were designed for).

    --
    Those who can't do, teach. Those who can't teach either, do tech support.
  28. I like you you abbreviated "missile" by Cajun+Hell · · Score: 1

    Yes, back in 1980 my computer had limited-length filenames too.

    --
    "Believe me!" -- Donald Trump
  29. Wave rider ... by Anonymous Coward · · Score: 0

    Wave rider lol ... The name is right btw..