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USAF Developing New "SR-72" Supersonic Spy?

Kadin2048 writes "According to an Air Force Times article, the famed Lockheed Martin 'Skunk Works' may be hard at work on a new supersonic spy plane (with 'artist concept') for the U.S. military, to replace the SR-71 'Blackbird' retired a decade ago. Dubbed by some the SR-72, the jet would be unmanned and travel at about 4,000 MPH at as much as 100,000 feet, with 'transcontinental' range. Some have speculated that new high-speed spy planes could be a U.S. response to anti-satellite weapons deployed by China, in order to preserve reconnaissance capabilities in the event of a loss of satellite coverage. Neither the Air Force nor Lockheed Martin would comment on the program, or lack thereof."

73 of 428 comments (clear)

  1. better hope it's real stealthy by Anonymous Coward · · Score: 5, Insightful

    Given the size of the thing, and the speed and height it flies at, that's going to look a lot like a missile. Might not be the best thing for an already paranoid enemy to see.

    1. Re:better hope it's real stealthy by moderatorrater · · Score: 3, Informative

      If it's anything like the SR-71, it won't be an issue whether they see it or not, they'll just accelerate. The Blackbird was a horribly un-stealthy plane, seen from hundreds of miles away by radar. However, while they were shot at quite frequently, they were never destroyed by enemy fire because of their speed and altitude. If a new version is in the works and this isn't just the same rumor that's been passed around for years, then it could easily incorporate the same defense mechanism.

    2. Re:better hope it's real stealthy by icegreentea · · Score: 2, Informative

      apparently its almost impossible to make something that fast stealthy, as the gas shooting out of it is superheated to the point where it actually reflects radar. thus, they're going to detect a couple hundred mile long radar contact moving at speeds lower than a ballistic missle, and in a non ballistic path.

    3. Re:better hope it's real stealthy by MadUndergrad · · Score: 2, Interesting

      What about laser weapons, though? They weren't nearly as advanced back when the 71 was flying, but (iirc) they can destroy satellites with them now. Wouldn't targeting a high-flying plane like the 72 be similar to hitting a satellite? I can't imagine the maneuverability would be very good at those speeds.

    4. Re:better hope it's real stealthy by rogerborn · · Score: 3, Informative

      One. It is not the SR-72. It is not even the SR-75 or the 79. Those designations are already being used for other vehicles. Nor is it likely called the AM-11 or the A-17, nor even the 'Stealth Triangle.' To the rest of us, its designation is unknown.

      Two. It does not generate heat through the atmosphere, nor does it require 'fuel' in the normal sense.

      Three. It is not exactly stealthy, since it 'glows' somewhat at night. However, due to its tremedous speed and its operating silence, it still maintains an element of surprise with a target.

      Four. The basic shape is triangular, but that is not its only shape. You would not believe that the Air Force or any other branch of the government would reveal the stealth fighter (F-117) and the stealth bomber (B-2) to the public and the world, if they did not already have something much more advanced and in production, did you?

      What can we gather from all this? Evidently, the great secret and the power of the new craft are its propulsive 'engines' which may or may not be magnetic in nature. Therefore, if they are so radical, I wonder if they can only work within the atmosphere, or if they indeed have been used to go to other nearby bodies in space?

      But, what do I know? I just live near a base where they test out its weapons delivery. Your mileage may vary.

      "If it doesn't work out the way you want it to, it will work out the way its supposed to be."

    5. Re:better hope it's real stealthy by moderatorrater · · Score: 4, Insightful

      Assuming such lasers exist, shooting down a satellite is much, much harder than hitting any airplane. The satellite has a known trajectory that doesn't change much over the course of weeks, making it very easy to plan exactly how to fire the laser. Also, a satellite will change a few degrees per second at most.

      On the other hand you have an aircraft traveling at mach 6. This requires you to accurately plot the trajectory, get the laser in place and aimed and firing for however long it needs to be concentrated on the same spot, all in a matter of minutes. Assuming the laser needs to be concentrated on the same spot for 1 second, the aircraft will have traveled nearly a mile. Not an easy task.

    6. Re:better hope it's real stealthy by WED+Fan · · Score: 2, Funny

      Google has been flying this thing for photo recon already. How the hell do you think they get those shots of women with those ever lovely thong handles?

      --
      Politics is the art of looking for trouble, finding it everywhere, diagnosing it incorrectly and applying the wrong fix.
    7. Re:better hope it's real stealthy by rsmoody · · Score: 3, Insightful

      Um, actually, the SR-71, for its time, was quite stealthy. The chines were constructed to reduce radar signature and it was coated with an early RAM material. About the only time you could see it well on radar was during a turn as the underside was poorly designed with regards to radar signature and would reflect a massive radar signature. Several of its accidentally stealthy characteristics are what brought on the interest in the creation of Have Blue, the predecessor to the F-117. They correctly deduced that these radar absorbing and scattering characteristics could be amplified with a correctly shaped object, thus was created the "Hopeless Diamond" which was a computer modeled object that when placed on a radar range, directly reflected almost no radar signature. In fact, during the test, they thought that the model had come off the stand and were prepared to go down the range to fix the issue, about this time, a small bird landed on the model creating a radar signature. This was their eureka moment. Regardless, radar lock was certainly possible to acquire on the SR-71, however, do defend itself, the pilot simply needed to add power for a few seconds and it would accelerate out of the missile's range very quickly.

      --
      45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
    8. Re:better hope it's real stealthy by Anonymous Coward · · Score: 2, Funny

      The Air Force is not 'hard at work' developing this craft. It has been in use for at least a decade now.


      Chris Carter called. He said you're paranoid.

    9. Re:better hope it's real stealthy by moderatorrater · · Score: 2, Informative

      According to the wikipedia article, it would have been stealthy if it weren't for the fact that it was going so darn fast and so hot that they could see it from hundreds of miles away and it appeared to be the largest thing in the sky. While it had some stealthy parts, it was horrible at it in practice.

    10. Re:better hope it's real stealthy by digitalchinky · · Score: 2, Interesting

      Now I'm all for conspiracy theories and the intrigue of a good old spy thriller, but here's the rub. I spent a decade in the military, then a bit more working as a civilian for the department of defense, the entire time I held a TS security clearance and had access to perhaps far more than I should have - mostly because I'm a curious little bastard. That said, never once did I come across the public release of information for specific hardware simply because there was better equipment in the pipeline. As close as it ever gets would be RADAR. Common sense dictates that certain modes are rarely, if ever, switched on so as to prevent 'the other side' from getting a good look.

      Skunkworks or not, one thing I learned was that secrets don't stay secret forever. Release of information is most frequently intentional, far reaching, but only intended for a few key individuals. Far less often is it accidental or malicious. Conspiracies are few and far between.

      Besides, those grey's don't even know how to make coffee, they do nothing but sit down in the basement and blink all day long.

    11. Re:better hope it's real stealthy by ThisIsForReal · · Score: 2, Interesting
      The government didn't talk publicly about the U2 Spy Plane until the SR-71 was in operation (which the public didn't know about).

      The government didn't talk publicly about the SR-71 Spy Plane until...well, there's something else out there, which we won't know about until it's replaced by something else.

      --
      -THE END-
    12. Re:better hope it's real stealthy by bdjacobson · · Score: 2, Informative

      What can we gather from all this? Evidently, the great secret and the power of the new craft are its propulsive 'engines' which may or may not be magnetic in nature. Therefore, if they are so radical, I wonder if they can only work within the atmosphere, or if they indeed have been used to go to other nearby bodies in space? No. Just no. The energy requirements for running what is the equivalent of a giant Ionic Breeze air purifier at that scale at that speed are astronomical, literally. As is flying a nuclear reactor. (Can be done; this has been discussed previously in relation to attaching lasers to Boeing 747's.) But you've got to find a way to keep it cool, too (same issue they're trying to overcome now with the laser/747 project).

      Nice try for informative mod points though.
    13. Re:better hope it's real stealthy by PerMolestiasEruditio · · Score: 2, Informative

      Can't be stealthy, the skin temperatures at that speed will be up to around 900K = 600+ deg C, or a nice bright orange colour, you just can't cool all that surface area, so it will stick out in IR like the proverbial canine's gonads. You can also forget stealthy radar absorbant coatings. Temperature also makes it extremely difficult to do things like communications, radar, landing gear, and especially optics at speed without heavy cooling (fuel cooling is the only real option, and there isn't that much fuel available). You also have a ridiculously bad lift to drag ratio - about 5 if you are lucky, (concord was 8 and 747 about 18), which of course means that you have a lousy range of maybe 2-3000km. Noise is also going to be huge, with a power output of more than twice what the blckbird was, even if you can't see it, you will hear it once it is 100km past you. I think the difficulty of hitting this baby is also overestimated. You don't need a Mach 6 missile, you only need an accurately guided Mach 2-3 missile with a range of 50-100km lying in the path of the SR72 and an integrated aerial defense network that is smart enough to fire the missile to intercept. Think something a little like the Patriot which is 30 year old tech. SR71A might have survived in an era of primitive missile defence systems, but no longer. Weapons deployment is also likely to be hugely difficult at such speed, given how finicky hypersonic aerodynamics are, and the added kinetic energy of 1800m/s is still only about half the energy content of TNT per kg, so it's of doubtful benefit. Development cost would be huge, and utility against other than low tech enemies (like maybe middle east) is probably not great. For the same money you would be better off creating a reusable sub-orbital rocket powered ballistic craft that could be both faster and stealthier (aerodynamics less important) as it does its fly over. It could be built to have long range efficient subsonic self-ferrying and it would be a much much more difficult target to hit. It could also deploy weapons, bigger better optics and other sensors without having trouble with hypersonic vibration and heat. And as a final added bonus, might help develop tech for the naescent space tourism/RLV industry.

  2. A few comments... by Valdez · · Score: 4, Insightful

    The new jet -- being referred to by some as the SR-72 -- is likely to be unmanned and, while intended for reconnaissance, could eventually trade its sensors for weapons. I'd be interested to see what kind of weapon they're planning to pop out the bottom of this thing @ Mach 6. Doesn't seem like a terribly bright idea...

    Second, friction at high speeds could reduce stealth. At some point, you don't need the stealth, because by the time anyone realizes you're coming and gets some sort of weapon 100k ft into the air, you'll probably have already landed.

    I hate to state the obvious, but the article is pretty sensational... I can summarize:

    Cower before our unmanned 6000mph stealthy black aircraft! If the Mach 6 shockwave doesn't get you, the nuclear handgrenades it carries will!
    1. Re:A few comments... by ravenshrike · · Score: 2, Interesting

      Eh, I suppose it could have a hatch situated between the engines on the rear of the plane, but anything it would drop would be extremely small an realatively very light as they wouldn't want to weigh down the plane any more than necessary. All in all, a very inefficient way to go dropping ordinance on people.

    2. Re:A few comments... by Martin+Blank · · Score: 2, Interesting

      There's work being done on lasers that are eventually intended for mounting under the F-35, so it may not be that much of a stretch to see one or two of those mounted in something like this. I don't know how badly 20 miles of atmosphere would attenuate the beam, but if it's for surgical strikes against soft targets (where a soft target could even be relatively heavily armored, but not under 30 feet of reinforced concrete), such a pinpoint ability could be exceedingly valuable in hitting targets in urban areas without the collateral damage of even the Small-Diameter Bomb (which still weighs in at 250 pounds).

      --
      You can never go home again... but I guess you can shop there.
    3. Re:A few comments... by sconeu · · Score: 2, Interesting

      You've still got to worry about dwell time. It's not enough just to hit the target for a fraction of a second, you have to hold on target long enough to pump enough joules into it to do damage.

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
    4. Re:A few comments... by vought · · Score: 2, Informative

      I would think the plane would probably smack its self into any payload it carried.

      This happened with the M-21 drone delivery version of the A-12, which was the predecessor type to the SR-71 Blackbird. While practicing the drone release, the drone bounced off of the shock wave (despite the prodigious thrust of its ramjet) and impacted the M-21, essentially ceaving the jet in half.

      Any payload released at these speeds or altitudes has to get past the shock wave first - and that's a problem so intractable that Lockheed gave up on it....in the 60s.

    5. Re:A few comments... by afidel · · Score: 2, Informative

      Valkyrie was worth it just to make the most beautiful airplane of all time. If you've ever seen it in person at WPAFB you'd know what I mean.

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    6. Re:A few comments... by TFloore · · Score: 2, Insightful

      At some point, you don't need the stealth, because by the time anyone realizes you're coming and gets some sort of weapon 100k ft into the air, you'll probably have already landed.

      The thing about high speed is that you don't turn very quickly. So when a radar site sees you, they notify the SAM battery 400 miles downrange of your track, and the missiles are on the way up to meet you when you get there.

      And the missiles are fast enough now to catch you, too.

      This is why the SR-71 was retired from reconnaissance missions. When the Soviets developed and fielded hypersonic SAMs (hypersonic == 5 times the speed of sound), they suddenly had missiles fast enough to catch up to an SR-71 from behind. Before that, the SR-71 pilots would barely even notice that they'd been fired upon, because the missiles couldn't catch them. And when they did notice, they laughed, because they knew the missiles were ineffective.

      The US had enough of a problem when the U-2 was shot down... they didn't want an SR-71 shot down also.

      Stealth matters.

      Other than that... correct, the article is pretty sensational.

      Anyone remember the Aurora aircraft that was talked about when the SR-71 was retired? I remember comments then that "The Air Force would never retire an aircraft unless they had a replacement already available" and other statements like that. Haven't heard anything about that in the last 5 years. Maybe we will in another 25 years, assuming it exists at all, when it gets declassified.

      --
      This is my sig. There are many like it but this one is... Oops. Frank, I've got your sig again! Where's mine?
  3. Already got one of these by Skreech · · Score: 4, Funny

    I already have an SR-72.

    http://www.apogeerockets.com/SR72_Darkbird_Kit.asp

    It doesn't go 4,000mph, though. It just sits there. I think I was ripped off.

  4. RS-71 by narced · · Score: 5, Interesting

    I'm sure a lot of you guys already know this, but for those that don't...

    The SR-71 Blackbird was originally named the RS-71, but it was renamed when Lyndon Johnson accidentally rearranged the letters during his 1964 announcement of the existence of the SR-71 (which he was supposed to call RS-71). Anyway... airplane history for ya'll.

    1. Re:RS-71 by Napoleon+The+Pig · · Score: 5, Informative

      Not quite... "Conventional" wisdom now says that then president Lyndon B. Johnson messed up the designation in his public announcement and called it the SR-71 - and nobody wanted to correct the president. Because the strike mission had been cancelled anyway, "SR" was quickly reinterpreted as "Strategic Reconnaissance". However, a first-hand witness of those events recently revealed in Aviation Week & Space Technology, that LBJ did not misread anything. In fact, then USAF Chief of Staff LeMay simply didn't like the "RS" designator - he already objected it when the RS-70 was discussed, preferring "SR-70". When the RS-71 was to be announced, he wanted to make sure it would be called SR-71 instead. He managed to have LBJ's speech script altered to show "SR-71" in all places. Using archived copies of LBJ's speech, it can actually be verified that it reads SR-71 both in the script and on the tape recording. However, the official transcript of the speech, created from the stenographic records and handed to the press afterwards, shows "RS-71" in three places. It seems that not the president but a stenographer did accidentally switch the letters, and thus create a famous aviation "urban legend". http://www.designation-systems.net/usmilav/nonstan dard-mds.html#_MDS_SR71

    2. Re:RS-71 by boster · · Score: 5, Informative
      According to Wikipedia:

      Name and designation

      The USAF had planned to redesignate the A-12 aircraft as the B-71 as the successor to the B-70 Valkyrie. The B-71 would have a nuclear capability of 3 first-generation SRAM's (Short-Range Attack Missiles). The next designation was RS-71 (Reconnaissance-Strike) when the strike capability became an option. However, then USAF Chief of Staff Curtis LeMay preferred the SR (Strategic Reconnaisance) designation and wanted the RS-71 to be named SR-71. Before the Blackbird was to be announced by President Johnson on 29 February 1964, LeMay lobbied to modify Johnson's speech to read SR-71 instead of RS-71. The media transcript given to the press at the time still had the earlier RS-71 designation in places, creating the myth that the president had misread the plane's designation.[1][2]
      --
      Madness takes its toll. Exact change please.
  5. Did anyone really believe the Airforce's line? by InsidiousDarkLord · · Score: 2, Insightful

    When they SR-71 was retired, they claimed it was no longer necessary as satellites could do the job. I assumed they had a replacement aircraft in place.

  6. erm if you look at the picture by Anonymous Coward · · Score: 2, Funny

    that's clearly a submarine. And at 4000MPH, a flaming fast submarine too!

  7. New Name by El+Torico · · Score: 4, Interesting

    I was wondering when they'd have an official designation for Aurora.

    --
    In the land of the blind, the one-eyed man is usually crucified.
  8. Re:Particle beam weapon by MrNaz · · Score: 5, Funny

    It's also vulnerable to psionic telekinetic mutants who could pull the thing to Earth and then disassemble it with their minds.

    --
    I hate printers.
  9. Necessary? by T-Bucket · · Score: 2, Interesting

    Is this really even necessary? Un-mothball a couple SR-71s. Is there even anything that can bring one of those down?

    1. Re:Necessary? by dixie_flatline_000 · · Score: 3, Informative

      Have a look at the Russian S-300 family of SAMs (NATO SA-10 GRUMBLE/SA-12 GLADIATOR and successors). Max engagement altitude is ~100k ft, and top speed is in excess of Mach 6. The SR-71 lives near the edge of the S-300's engagement envelope, but it's close enough to be a real hazard, and the S-300s are pretty widely deployed. It's at least as much of a threat as the SA-2 GUIDELINE represented to the U-2.

  10. Incorrect according to wiki by Blahbooboo3 · · Score: 2, Insightful

    Sorry, no dyslexia for LBJ :)

    http://en.wikipedia.org/wiki/SR-71_Blackbird#Name_ and_designation

    USAF Chief of Staff Curtis LeMay preferred the SR (Strategic Reconnaisance) designation and wanted the RS-71 to be named SR-71. Before the Blackbird was to be announced by President Johnson on 29 February 1964, LeMay lobbied to modify Johnson's speech to read SR-71 instead of RS-71. The media transcript given to the press at the time still had the earlier RS-71 designation in places, creating the myth that the president had misread the plane's designation.

  11. Re:Particle beam weapon by Kagura · · Score: 3, Funny

    I hope you get modded up to at least Insightful +3.

  12. Will never be as *cool* as SR-71 by DoofusOfDeath · · Score: 2, Interesting
  13. Concept sounds a lot like "Aurora" by DragonWriter · · Score: 2, Informative

    Except there was never any suggestion that Aurora was "crew optional". Nothing solid provided by the article, but no one should be surprised if it turns out to be true.

  14. That's no plane... by popo · · Score: 2, Funny

    ... its SeaQuest DSV!

    --
    ------ The best brain training is now totally free : )
  15. I think the AC's point was retaliation by benhocking · · Score: 4, Insightful

    As in Mutually Assured Destruction, if the SR-72 were falsely interpreted as a nuclear missile. I doubt that would happen, but I believe that was the point of the "first post".

    --
    Ben Hocking
    Need a professional organizer?
    1. Re:I think the AC's point was retaliation by gujo-odori · · Score: 5, Insightful

      That was the point (although China Vs. the US or Russia in a nuclear shootout would not result in MAD, it would results in the US or Russia being mauled and China being utterly destroyed), but the AC was a complete tool, and so were those who modded him Insightful. The only kind of missile with a similar flight trajectory would be operating at a much lower altitude - say, 50 - 100 feet - and at subsonic speeds.

      An ICBM, unlike a cruise missile or an SR-71, has a very steep angle of ascent, and comes down pretty steeply, too, doesn't have much of a heat signature on the way down, and since most (or all?) of those held by the US and Russia have MIRV warheads, the things coming down will also be far, far smaller than an aircraft. A spy plane looks nothing like a missile on radar.

    2. Re:I think the AC's point was retaliation by gujo-odori · · Score: 2, Insightful

      Whether or not it would be allowed to happen is another question altogether. But if it did happen, China would come out on the worst end of it. They have enough nuclear capacity to act as an effective deterrent, but not enough to make an offensive attack and succeed.

      Fortunately, the major nuclear powers have reached a point where they are all pretty against having war with each other. Unfortunately, we have guys like Ahmahdinejad in Iran, steadfastly denying the Holocaust while at the same time working their butts off to make deliverable nuclear weapons as part of their planning for the next Holocaust.

      While that is unlikely to trigger a confrontation between the major nuclear powers, it is likely to trigger an Iranian attempt to nuke Israel, and
      whether it's successful or not, retaliation in kind by the Israelis. I think there is no doubt that the Israel response would be successful and devastating. Sometime between now and when Iran can actually build nuclear weapons, that building needs to be prevented. By peaceful means if possible, but by any means necessary if peaceful means don't work.

    3. Re:I think the AC's point was retaliation by gujo-odori · · Score: 2, Interesting

      Congratulations, that's the best change of topic I've seen all day. Whether there would be a nuclear winter or not has nothing to do with who would come out worst in the exchange. But since we're on the topic, nuclear winter is pretty debatable. Modern nuclear weapons don't produce a lot of fallout and are mostly set as airbursts that wouldn't kick up all that much dust. The economic chaos caused by a nuclear exchange between any of Chinak, Russia, and the United States would most likely be a far worse problem than whatever level of global cooling might or might not happen from that exchange. The world economy would be screwed if the exchange were between China and Russia and completely shattered if it were between China and the US.

      Fortunately, that's not very likely to happen. The Middle East is the place most likely to have a nuclear exchange. It would be smaller, but still pretty bad for the global economy. We'd better get drilling more in Alaska and California and anywhere else we've got oil, so when the Iranians get nukes and the Israelis vaporize them in self-defense, we'll still have enough oil to get along on until we're really up to speed on non-oil energy sources.

      But I digress. Nuclear winter or no nuclear winter, anyone who thinks the Chinese couldn't tell the difference on radar between a high-altitude spy plane and a re-entering MIRV is still a tool :)

    4. Re:I think the AC's point was retaliation by Shakrai · · Score: 2, Insightful

      Whether or not it would be allowed to happen is another question altogether. But if it did happen, China would come out on the worst end of it. They have enough nuclear capacity to act as an effective deterrent, but not enough to make an offensive attack and succeed.

      Kudos for that argument. I made it for the EU awhile back when some EU tool stated that they could "atomic-bitchslap" the US and Russia and nobody wanted to listen to it. Russia and the United States are the only two nations that can play offensive nuclear war with any chance of success (albeit, "success" in nuclear war probably implies millions of deaths on your side and total genocide for whomever you were going after).

      Unfortunately, we have guys like Ahmahdinejad in Iran, steadfastly denying the Holocaust while at the same time working their butts off to make deliverable nuclear weapons as part of their planning for the next Holocaust.

      That guy scares me more then Kim Jong ever will. At least Kim's motives are obvious and somewhat understandable (survival of his regime). Ahmahdinejad's goals remain a mystery.

      it is likely to trigger an Iranian attempt to nuke Israel, and whether it's successful or not, retaliation in kind by the Israelis

      The Israelis have a couple hundred missiles that can be nuclear tipped and reach any point of Iran. They can completely destroy Iran if they choose to do so. One can only hope that it doesn't come to that....

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    5. Re:I think the AC's point was retaliation by cayenne8 · · Score: 2, Funny
      "The Israelis have a couple hundred missiles that can be nuclear tipped and reach any point of Iran. They can completely destroy Iran if they choose to do so. One can only hope that it doesn't come to that...."

      Hmm...if that happened, all that oil over there would be A). Radio active B). Up for grabs?

      Just was wondering if that happened, if we could somehow use radioactive oil in some kind of combo internal combustion/nuclear engine....talk about efficient,eh?

      :-)

      --
      Light travels faster than sound. This is why some people appear bright until you hear them speak.........
  16. USAF + Skunkworks + Google by meccaneko · · Score: 2, Funny

    *I* heard it was going to be used by Gooogle to do the next run of Street views...

    1. supersonic stealth spy plane
    2. Google Streets
    3. ???
    4. Profit!
  17. Re:fsdf 53tgvzxcreahb fg agasgdgu nbcxfharefdawsgg by CommunistHamster · · Score: 5, Funny

    Gentlemen, this may be the very first sighting of this new spyplane on Slashdot. Observe the shape made by the bold text under a resolution of 640*480 @ 60Hz.

  18. Re:there's a good reason they dont use the SR71 by Anonymous Coward · · Score: 2, Insightful

    Nobody ever thought the U-2 was immune to missles, they knew that it flew outside the engagment envelope of _current_ Soviet SAM systems but the CIA estimated that by sometime around 1960 Soviet SAM technology would advance far enough to make them vulnerable. When Powers was shot down in 1960 his flight was supposed to have been one of the last to go into Soviet airspace. Simply put they took a chance that they could pull it off one more time and lost.

    Second its not enough to just detect the plane to shoot it down, you have to have a weapon that can engage it. The Soviets had known that planes (probaby US) were penetrating their airspace for some time, they just didn't have a weapon that could engage them yet. The higher and faster the plane flies the smaller the envelope of engagment (both in space and time). Altitude and speed don't make a plane invulnerable but they make them harder to hit and possibly invulnerable to _current_ air defence systems. Of course if there is a next-generation plane that can evade current missles then people will start work on next-generation missles (or laser, HPM, ...) to shoot them down.

    It's a never ending game of cat and mouse.

  19. remember kids... by Thaelon · · Score: 3, Funny

    If the headline ends in a question mark, it's not news.

    --

    Question everything

  20. Ok, so... by jd · · Score: 2, Informative
    They are probably building a waverider that uses a ramjet (4,000 MPH is way way too slow for a scramjet) with some sort of launch assist mechanism - there are several they can choose. Though they could also use a turbine-assisted ramjet or variant. Again, there are several.

    Does it matter? Well, the first to build a working waverider aircraft was a Scottish amateur rocketry group. Story has it that when NASA and Boeing engineers saw footage of the vehicle flying, they were staring at the screen in sheer envy. They'd got no further than theory. We also all know the story of the New Zealander who has jet-propelled go-karts and his own low-cost cruise missile. And the Gauss Rifle linked to above didn't look too complex, either.

    Although amateurs are very unlikely to be building supersonic or hypersonic spy planes in the near future, none of this looks so complex that it could not be done by other nations in comparable time. Don't think it won't happen - too many potential benefits. Variants will also inevitably be adopted by commercial space planes, as it's so much cheaper than using vanilla rocketry and should be much more reliable.

    To me, the only question I think worth asking at this point is who will be there first? Lockheed-Martin, China or Rutan? (And after Lockheed's disastrous hovering shuttle replacement in the late 1990s, it's not wise to just assume they'll automatically win such a race.)

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    1. Re:Ok, so... by drgould · · Score: 2, Insightful

      (And after Lockheed's disastrous hovering shuttle replacement in the late 1990s, it's not wise to just assume they'll automatically win such a race.)

      I think you're confusing the hovering McDonnell Douglas DC-X (which was a successful test vehicle until NASA got ahold of it) and the Shuttle replacement Lockheed Martin X-33 (which was a diaster).

  21. Re:there's a good reason they dont use the SR71 by Shihar · · Score: 2, Interesting

    "Laser defenses" are hardly worth losing much sleep over. In order to hit a target moving the speeds this thing moves and at the height it travels, you will not only need one very powerful laser, but a damn good targeting system. Even then, the laser can only hit what is in its horizon, with stuff on the horizon being extremely difficult to hit and taking even more power. Any such laser would be pretty damn big, pretty damn obvious, consume a very noticeable amount of juice, and be a big fat plump target.

    Fears of laser defenses hardly justify much worry. Conventional missiles are probably far more worth worrying about, but even then you are talking about a very fast, very long range missile that probably looks more like a ballistic missile then a normal missile. And if they hit one? Oh no. They just killed a robot. The alternative is to use much larger and slower manned vehicles or rely on satellites... which China has shown it is capable of knocking down.

  22. Re:Pilot not required? by Ironsides · · Score: 2, Insightful

    That does highlight the one area in which you'd want a pilot, though, and that's to make sure that no real technology falls into the enemy's hands.

    That's what the C4/Thermite is for. Debris isn't worth much when all that's left won't even fill a teaspoon.

    --
    Fly me to the moon Let me sing among those stars Let me see what spring is like On jupiter and mars
  23. No joke. by mosel-saar-ruwer · · Score: 2, Insightful


    Seriously.

    The SR-71 is easily the baddest mofo of any item in either the Smithsonian's downtown Air & Space or Air & Space II in the big hangar out by the airport [which is where the SR-71 sits, right smack in the middle of the floor, dominating everything else around it].

    Badder than the Wright Bros' biplane, badder than Lindbergh's Spirit of St Louis, badder than Apollo 11, badder than the Space Shuttle.

    Just one great big Samuel Jackson Pulp Fiction Bad Mofo of an airplane.

    1. Re:No joke. by jjk3 · · Score: 3, Interesting
      I personally think the Enterprise trumps the SR-71, but there is no denying the bad assness of the last flight of that SR-71.

      According to the Smithsonian - http://www.nasm.si.edu/aircraft/lockheed_sr71.htm

      "On March 6, 1990, the service career of one Lockheed SR-71A Blackbird ended with a record-setting flight. This special airplane bore Air Force serial number 64-17972. Lt. Col. Ed Yeilding and his RSO, Lieutenant Colonel Joseph Vida, flew this aircraft from Los Angeles to Washington D.C. in 1 hour, 4 minutes, and 20 seconds, averaging a speed of 3,418 kph (2,124 mph). At the conclusion of the flight, '972 landed at Dulles International Airport and taxied into the custody of the Smithsonian's National Air and Space Museum. At that time, Lt. Col. Vida had logged 1,392.7 hours of flight time in Blackbirds, more than that of any other crewman."

      3,418 kmp = Mach 2.79, pretty bad ass. I though you were not able to break the sound barrier over the US, either a special circumstance or I am just wrong.

  24. probably exists now by 192939495969798999 · · Score: 3, Insightful

    the SR-71 is a famous example of something very advanced remaining classified for a long time. By the time the public saw them, they were practically retired. I'd guess that this vehicle exists now in classified form, and by 2020 we'll "officially" know they've built and flown them.

    --
    stuff |
  25. I don't care... by serviscope_minor · · Score: 2, Interesting

    I don't care if there are better solutions or if it's expensive or bad for the environment or whatever. The engineer in me just thinks that the SR-71 was too cool to be taken out of service. I look forward to the SR-72.

    --
    SJW n. One who posts facts.
  26. But wait... by __aailrp9629 · · Score: 2, Interesting

    If it's intended as a satellite-replacement in case of reconnaissance satellites being destroyed by ASAT weaponry, wouldn't there be some issues in remotely controlling an aircraft with "transcontinental" range without relying on communications satellites that would also presumably be destroyed by the point this aircraft is needed?

  27. Classified by R3d+M3rcury · · Score: 4, Funny
    FTFA:

    "As a matter of policy, we don't talk about classified programs -- whether or not they exist," Lockheed's Tom Jurkowsky said. If the program doesn't exist, how can it be classified? Or has the military classified everything that doesn't exist?

    I'm confused.
  28. They meaning China by ascendant · · Score: 2, Informative

    but (iirc) they can destroy satellites with them now.
    You don't remember correctly.

    They used the lasers to light up the satellite, and smacked it down with a missile (kinetic).

    They also have the ability to blind some satellites cameras with lasers.

    They do not have the ability to destroy satellites with lasers.

    --
    Do not attribute to malice that which can be easily explained by incompetence.
  29. Re:Particle beam weapon by ffoiii · · Score: 5, Funny

    I, for one, welcome our new psionic telekinetic mutant overlords.

  30. Obligatory linguistic correction by Deadstick · · Score: 2, Informative
    from the next-comes-high-altitude-flak-cannons dept.

    Redundant. Flak is a German-style contraction for Flugabwehrkanone, anti-aircraft cannon.

    Guess that makes me a German Nazi...

    rj

    1. Re:Obligatory linguistic correction by CaseyB · · Score: 5, Funny

      Guess that makes me a German Nazi...

      You just Godwinned yourself. I've never seen that before.

  31. Re:Pilot not required? by greenbird · · Score: 2, Interesting

    That's what the C4/Thermite is for. Debris isn't worth much when all that's left won't even fill a teaspoon.

    You know, at 4000mph I really don't think C4 or Thermite would be needed. I think friction would do the trick if there were to be any unplanned aerodynamic manipulations.

    --
    Who is John Galt?
  32. Re:there's a good reason they dont use the SR71 by LabRat · · Score: 2, Informative

    You obviously didn't follow my suggestion to research hypersonic IR seekers. Come back when you learn to read. Further, try learning a little about compressible fluid dynamics before trying to comment on such a topic. THAAD is just one "famous" application for such technology, but there are numerous other projects around the world for lower-tier interception that use IR for final stage guidance that would be applicable. Finally, THAAD does not operate in a "vacuum"...and it must deal with the same thermal envelope problems due to its speed. Such heating has more to do with Mach number than the density of the surrounding air...altitude is largely irrelevant since the Mach number "auto-adjusts" to the altitude due to the relationship of the speed of sound to density. THAAD is not just a out-of-the-atmosphere interceptor..it is designed to engage targets both endo- and exo-atmospherically including short-range ballistic missiles. The IR seeker was designed to function in a an environment exceeding Mach 7 inside the atmosphere...

    http://www.google.com/search?hl=en&client=firefox- a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial&hs= 4KB&q=thaad+ir+seeker&btnG=Search
    http://www.arnold.af.mil/news/story.asp?id=1230516 70

    In any case...as I said before...this proves the concept...it *is* possible despite the previous poster's assertions...but I doubt a missile-based defense system would be the most viable against the proposed "SR-72"...energy weapons from perhaps an airborne platform would be my first choice for flexibility and probability of kill.

    Try doing a little research before calling someone stupid, next time. Your comment drips with ignorance in the subject.

  33. WOW! *drool* by kermit1221 · · Score: 2, Funny

    That artist's rendering image just makes me so excited. Pretty impressive design there. Very imaginative too! It's like they took a picture of an SR-71, cut off the wings and moved the vertical stabilizers to the fuselage. Wow! Almost as cool as this image of the fabled Miata SR-71.

  34. Those who forget their history... by gorehog · · Score: 2
    From the article...

    A new Mach-6 reconnaissance jet being developed for the Air Force would offer a combination of speed, altitude and stealth that could make it virtually impervious to ground-based missiles, sources said.
    My response? Francis Gary Powers. Goodnight Folks, you've been a wonderful crowd.
  35. Sounds like D-21 redux. by MtViewGuy · · Score: 2, Interesting

    I wonder does anyone remember Project Tagboard, the Lockheed D-21 unmanned drone that could fly at around 2,700 mph to fly a pre-programmed course before ejecting its camera pack? While the idea worked it was not a paragon of reliability and the project was cancelled in 1971.

    However, thanks to technology improvements since then, this new drone could probably work, thanks to better materials, fly-by-wire systems, and GPS navigation for more precise control of flight path. It would probably be launched off modified B-52 bombers like the D-21 drone.

    1. Re:Sounds like D-21 redux. by Richard+Elmore · · Score: 3, Informative
      The D-21 had problems being launched from A-12 aircraft at supersonic speed, Kelly Johnson was quoted as saying it was "the most dangerous maneuver we have ever been involved in, in any airplane I have ever worked on."

      Launching from a B-52 using a booster rocket to accelerate to the speed needed to start the drone's ramjet engine was another option. One problem there was that the radar signature of a D-21 launch looked a very similar to the launch of a Hound Dog missle so there was concern that somebody might jump to the wrong conclusion and shoot back.

      In the end the poor reliability of the drone itself killed the project; of the four operational D-21 missions no film was ever successfully recovered.

  36. Stealth heat signature by cojsl · · Score: 3, Interesting

    In the excellent "Skunk Works" about Lockheed Martin's special projects division, Ben Rich discusses the problem of masking the heat signature from air friction against the airframe of a plane flying Mach 6, saying it would show up like a meteor to a thermal detector. At that speed you can't shoot it down, but the observed can detect it thermally. I recall that he said they put additives in the SR-71's fuel to reduce the heat signature of its exhaust.
    It seems that the U2 and SR-71 overflights may have had a calming effect on US military actions, as they allowed the US to better understand the USSR's level of alert, and prevented overreaction to a false belief that the USSR may have been massing for an attack.

  37. Re:The unanswered question by LabRat · · Score: 2, Insightful

    IMHO, recon assets are probably the best bang-for-buck that the taxpayer gets from the defense budget. You don't always have a satellite where it needs to be to see something *when* you want...that's where these come in. Good recon can prevent wars...or at least help keep wars small (dependent on the cowboy factor in the whitehouse, of course). Far different from the nuclear stockpile...recon assets have immediate benefit and impact on national security while being used in an active role. As others have surmised...I'd be surprised if this thing wasn't already operational. I never bought the story that the air force was going to rely 100% on satellites for strategic recon...especially since the Soviets demonstrated ASAT weapons decades ago. The recent tests by the Chinese in that arena have only refocused the public on a long-existing threat to our global surveillance capabilities via our satellite systems.

  38. Re:Ummmm... You do realize by smilindog2000 · · Score: 2, Informative

    As this is slashdot, I'll throw out what I've heard without siting a source. I hear the USSR shot plenty of missiles at the blackbird, but at that altitude, the missiles turned into flying bricks, unable to turn effectively. Designed for that altitude, the blackbird simply had to make a slight turn to avoid a missile.

    --
    Beer is proof that God loves us, and wants us to be happy.
  39. SA-12 aka S-300 by theolein · · Score: 4, Interesting

    I'm not so sure that this craft will be invulnerable to surface to air missiles such as the S-300V (SA-12b) fielded by Russia, China and India. The SA-12b has a range of between 100 and 200 km and a speed of 2.4km/s (Mach 7.24) and is known to have a limited anti-ballistic missile capability. Any craft travelling at mach 6 is not going to be very manoeuvrable (less than a missile in any case) and if it were to come in range of the SAMs would very likey be shot down. It is also an interesting coincidence that the SR-71 was slowly retired as later variants of the S-300 became operational as it would have made intercepts possible even over international waters where the SR-71 usually operated (The limits of view at 80 000 feet altitude is about 640km so there good information could be gathered without endangering the crew and craft, and satellites could actually get closer to the target than the SR-71 could), but you can be sure that the SR-71 was never operated over any area where there were active and hostile S-300s.

    That said, tracking a target at mach 6 is no easy task. If the plane deploys some stealth or good ecm it will be no easy target. But invulnerable I seriously doubt. In the same manner that Russia upgraded its S-27 Topol M ICBM to manoeuvre in order to make targeting by the US ABM interceptor missiles, I am pretty sure that both China and Russia would be able to develop a counter to the SR-72 relatively cheaply, probably by improving the S-300 system.

    I think the real use of a system such as this would be against countries like Iran, which the US fears is going to threaten Israel.

  40. Re:Pilot not required? by Hal_Porter · · Score: 2, Interesting

    Do they even have self destructs I wonder? In Blackhawk Down (the book) they actually had guys go back and chuck in themite grenades into the helicopters. And in Iraq I heard the same thing about disabled M1A1s. I even heard of the USAF dropping napalm on downed equipment to destroy it. But all this is from journalists, so maybe it was bullshit.

    Seems like if you had a self destruct, the guys that abandoned them would just have set a timer before they left. Maybe the safety issue makes it stupid idea in practice.

    I dunno really. On one hand I think military stuff is full of explosives anyway, so a few small charges to destroy sensitive stuff is no problem, on the other I can see that it might be hard to do this if the inside is packed tight with soldiers and equipment, and maybe there are high tech ways to accomplish most of the effect of a self destruct if the computers reformat themselves and keys get revoked back at base. You certainly don't see the bad guys being able to use captured hardware, and it's not like al Qaeda will be able to reverse engineer it like the Russians could.

    In that case, lobbing a thermite grenade is just to destroy any paperwork that might be left. I suspect there's an element of anthropomorphic thinking too, fragging equipment is sparing it the indignity of being captured.

    --
    echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
  41. Re:China by Magada · · Score: 2, Informative

    From the tone, UID and nick, I assume you're about 16 years old, so not necessarily trollish, just misinformed. Here's a free geopolitics lesson, kiddo: if the US embargoes China, Walmart goes titsup. Last I checked, that's the largest employer in the country. Dig?

    --
    Something bad is coming when people are suddenly anxious to tell the truth.
  42. Clarification of "Classified" by rehtonAesoohC · · Score: 2, Informative

    A lot of people in comments are claiming conspiracy about the Air Force and Lockheed Martin denying comment on the plane's existence or lack thereof. When someone says information is classified, it is not a confirmation or a denial of its existence... It simply means that any information someone might have about the possible existence of a theoretical super-plane is on a need-to-know basis. If the general public has a need to know (wouldn't happen unless it was something like Armageddon) then the general public will be informed.

    There's no need to immediately jump to "It's classified so it must exist." If that was the case, then ask any Air Force officer privy to classified information for info on that information. If you asked "Are there aliens at Area 51?" I guarantee you they'd respond with "That's classified." Same thing with "Is the Air Force testing prototype beam weapons?" Classified. I know that in this case, they simply denied comment, but the same principle applies. Saying nothing on the issue is not a confirmation of a person's suspicions.