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Chinese Stealth Fighter Jet May Use US Technology

Ponca City writes "In 1999, a US F-117 Nighthawk was downed by a Serbian anti-aircraft missile during a bombing raid. It was the first time one of the fighters had been hit, and the Pentagon blamed clever tactics and sheer luck. The pilot ejected and was rescued. Now, the Guardian reports that pieces of the wrecked F-117 stealth fighter ended up in the hands of foreign military attaches. 'At the time, our intelligence reports told of Chinese agents crisscrossing the region where the F-117 disintegrated, buying up parts of the plane from local farmers,' says Admiral Davor Domazet-Loso, Croatia's military chief of staff during the Kosovo war. 'We believe the Chinese used those materials to gain an insight into secret stealth technologies... and to reverse-engineer them.' Zoran Kusovac says the Serbian regime routinely shared captured western equipment with its Chinese and Russian allies. 'The destroyed F-117 topped that wish-list for both the Russians and Chinese,' says Kusovac."

53 of 339 comments (clear)

  1. The technology in question... by MrEricSir · · Score: 2, Funny

    ...is a pirated copy of Windows 7 they bought in a Shanghai alley.

    --
    There's no -1 for "I don't get it."
    1. Re:The technology in question... by bami · · Score: 3, Funny

      You wouldn't download a plane...

  2. If true... by fuzzyfuzzyfungus · · Score: 3, Interesting

    It seems only fair to ask whoever just had to take the shiny toy out for a spin whether it was worth it for Serbia?

    1. Re:If true... by ThunderBird89 · · Score: 4, Interesting

      The F-117 was used in the Serbian conflict because it had the ability to make quick, stealthy precision strikes on the Serbian air command, paving the way for the heavy cavalry to move in and decimate the ground forces.

      As a Hungarian, I'm also pleased that the one and only time the Goblin was downed was at the hands of a Hungarian commander, one Zoltán Dani, who used an old modified Russian radar unit operating at very long wavelengths to defeat the F-117's stealth capability, and used manual guidance on the missiles along with several spotters who reported the flight path.

      As for the new Chinese stealth fighter, it's reported to be an even match for the Raptor, and used designs on a Lockheed HDD that was not wiped before being sold overseas. I wonder what else remained on that drive, though...

      --
      Hyperbole: I use it liberally!
    2. Re:If true... by gad_zuki! · · Score: 3, Interesting

      Youd be foolish not to use it to take out anti-aircraft, power stations, tank formations, etc or anything that is a threat to conventional units. Not to mention you get to see it in live combat, build experience, and see its limitations. The real problem was that it was taken out under conditions stealth doesnt work right like in the rain.

      I'm pretty skeptical that these pieces could really have led to a stealth fighter. Stealth tech isn't that tough to figure out and I'm sure the most you can gain from these pieces is what materials were used. If your country has a run-away military budget like the US fdoes you can make all the stleath you want. For reference the US's budget is 10x China's. If anything, why dont we have nicer toys? Oh right, the waste, pork, cronyism, etc that typifies the military-industrial complex.

      As a side note, you gotta be shititng me about slashdots new commenting system. It took 5 minutes to reply to this, paste doesnt work in chrome, its ugly as sin, and probably the worst commenting system on the web. Just rollback to the old one please. Slashdot isnt ready for web 2.0.

    3. Re:If true... by peragrin · · Score: 5, Informative

      You do realize that not only that but the F-117's were restricted to a very specific flight pattern flying over the exact same pass day and night over and over again.

      He may have used some old equipment that had a different radar freq, but he also got lucky that Political stupidity played a major role(flights into and out of the region where very limited, which areas they could and couldn't fly over).

      The Chinese fighter is larger and heavier than the Raptor. It doesn't use thrust vectoring nozzles, or even distributed nozzles to limit heat output by the engines. it is only stealthy head on, from any other angle it will be easy to spot. Those giant canards will also turn a very large radar reflection back too. It uses old school radar so it will be easy to track. All in all it isn't a bad attempt at an updated fighter for china, but it is two or three generations from being capable as the Typhon or raptor.

      Not to mention this is the initial test flight. it will be ten years before they have decent production going. remember the raptor's flight demo for the USAF was in 1991, and the first production model flew in 1997.

      --
      i thought once I was found, but it was only a dream.
    4. Re:If true... by Wyatt+Earp · · Score: 4, Insightful

      Its been "reported" that its a match for the F-22, but the fact is that it's only flown a handful of times in very limited envelopes. Theres really no way to tell what this aircraft is capable of and how good it's technology is.

      If it's really based on the F-117A, then the stealth technology is at least a full generation behind F-22, and less capable than what Rafale and Eurofighter Typhoon have, not to mention F-22A and F-35 and modern UAVs and UCAV prototypes have.

      F-22s capabilities are because of 12 years of test program and refinements of software, the new Chinese fighter is basically were YF-22 and YF-23 were in 1990-91 were or where X-35 and X-32 were in 2000-01.

      Plus we don't know the sensor capability of this new aircraft, it's data link capabilities, range, speed, armament.

      Its years too early to say it's a match for F-22, F-35, Typhoon or Rafale

    5. Re:If true... by grcumb · · Score: 5, Interesting

      The F-117 was used in the Serbian conflict because it had the ability to make quick, stealthy precision strikes on the Serbian air command, paving the way for the heavy cavalry to move in and decimate the ground forces.

      When I visited Belgrade some years ago, I was told by someone in a position to know that US planes were actually kept away from the most demanding targets. Apparently, it was mostly the French (gasp!) who accounted for the strikes in downtown Belgrade. Their handiwork was impressive, to say the least: The Ministry of Defence building was completely destroyed, falling in on itself, while neighbouring buildings sported only a few nicks from flying debris.

      The US were responsible for at least one raid in Belgrade itself. But more about that in a moment....

      As a Hungarian, I'm also pleased that the one and only time the Goblin was downed was at the hands of a Hungarian commander, one Zoltán Dani, who used an old modified Russian radar unit operating at very long wavelengths to defeat the F-117's stealth capability, and used manual guidance on the missiles along with several spotters who reported the flight path.

      At least some parts of the wreckage must have made it into the Chinese hands. That would account for the *cough* tragically mistaken bombing of the their Embassy. (The US knew what it was doing. If you don't think that NATO had spotters on the ground, you too are tragically mistaken.)

      --
      Crumb's Corollary: Never bring a knife to a bun fight.
    6. Re:If true... by Facegarden · · Score: 2

      .... It took 5 minutes to reply to this, paste doesnt work in chrome, its ugly as sin, and probably the worst commenting system on the web. Just rollback to the old one please. Slashdot isnt ready for web 2.0.

      Yeah, paste sucks in chrome. I've found that if you right click and hit paste, it works, but not if you ctrl+v. Or maybe its the other way around.

      But the system is wacky. It blows me away that a tech blog can't even come out with a text entry system that doesn't test properly in one of the most popular browsers (and probably the single most popular browser for users of this site).

      The whole point of improving comment systems is to improve discourse, but now I don't cite my sources on things because I can't copy and paste links half the time!
      -Taylor

      --
      Worldwide Military budgets: $2100 billion. Worldwide Space Exploration budgets: $38 billion. Really, world? Really?
    7. Re:If true... by Graff · · Score: 4, Interesting

      I'm pretty skeptical that these pieces could really have led to a stealth fighter. Stealth tech isn't that tough to figure out and I'm sure the most you can gain from these pieces is what materials were used.

      There's actually quite a bit of complicated technology to stealth fighters or everyone would have had them by now.

      First of all there's the chemistry of the ablative coatings used on the equipment. They have to absorb wavelengths, prevent infrared emissions from the aircraft, scatter radar in a certain manner, and still be light, adhere well, provide corrosion resistance, and so on.

      There's also specific angles for stuff like air intakes, exhaust nozzles, instrumentation, etc. so you have as little backscatter on radar as possible. Some of the concepts are simple but tricky to implement in an vehicle that still needs to be aerodynamic and efficient in flight. These aircraft also use special alloys for various purposes and pieces of the aircraft would be great for reverse engineering those alloys.

      All this stuff still has to be able to fly and there's a lot of engineering involved in designing the control surfaces, not to mention the computerized and fly-by-wire systems needed to stabilize a craft which is not as easy to control as a non-stealth aircraft.

      So yeah, there's a lot of technology for someone to capture.

    8. Re:If true... by c6gunner · · Score: 3, Insightful

      Eh. Dani tells a nice story, but it's rather short on details. The "long wavelengths" explanation comes from a guy at Jane's Magazine, and it's pure conjecture. There's really no evidence that any part of his story is true, although it seems plausible. Given that Serb source were reporting dozens of aircraft shot down while the war was ongoing, I fail to see any reason to give them much credence in this case.

      As other have pointed out, though, even if true, his story shows that the shoot-down was as much a result of luck as skill. He had to wait for just the right circumstance - lack of supporting aircraft including Prowler jammers, shit weather, aircrew over-confidence - before he could get a successful kill. And the figures for the rest of the war show the same; with only 2 or 3 NATO aircraft lost during the entire campaign, there's no doubt that Serb anti-air assets were largely irrelevant. As I said, it's a neat story, but there's not much there for you to be proud of.

      As for the new Chinese fighter, it's reported to fly on pixy dust and fire laser-rainbows. Until we see some real data, I'm not buying it.

    9. Re:If true... by UnknowingFool · · Score: 3, Interesting

      From the appearance, the J-20 copies much of the geometry of the F-22 and F-35. It appears that the Chinese got some materials technology from the downed F-117 Nighthawk. The canards and the exhaust show what they haven't been able to copy: Advanced fly-by-wire technology. The F-117, B-2, F-22, and F-35 all are aerodynamically unstable by themselves. It takes very sophisticated flight computers to make constant but minute corrections to keep these planes in the air. Instead of being able to replicate this, the Chinese seem to used the low tech approach of canards. The exhaust also could be a side effect of not having this advantage.

      --
      Well, there's spam egg sausage and spam, that's not got much spam in it.
    10. Re:If true... by wagnerrp · · Score: 2

      As for the new Chinese stealth fighter, it's reported to be an even match for the Raptor

      Everything I've seen released about that aircraft seems to indicate it is in fact not a fighter, but rather an attack bomber, similar to an F-111 or Tornado. They have attack radars, and can fire air-to-air missiles, but won't cut it in a dogfight with a fighter.

    11. Re:If true... by dakameleon · · Score: 2, Insightful

      Not to mention this is the initial test flight. it will be ten years before they have decent production going. remember the raptor's flight demo for the USAF was in 1991, and the first production model flew in 1997.

      This is China - in 2004, they didn't have a high-speed rail network worth the name. In 2010, they had approximately 10,000km built. If they want it next year, they'll get it alright.

      --
      Man who leaps off cliff jumps to conclusion.
    12. Re:If true... by Rennt · · Score: 2

      If China sufficiently builds up it's support industries at the same time as accelerating development, then propulsion comes from within.

      See: Japan

    13. Re:If true... by jambox · · Score: 4, Insightful

      Nonsense. Laying train tracks is a well-understood process and can be done at any rate providing you have enough engineers, labourers and money. Building a next-generation multi-role fighter is completely different because you're trying to make a single extremely complicated item, with a view to some day manufacturing a few hundred.

      --
      You thought you could break the laws of physics without paying the PRICE?
    14. Re:If true... by bsDaemon · · Score: 3, Funny

      /. is not blocked in China.

      Tiananmen squareTiananmen square Tiananmen square Tiananmen square Tiananmen square Tiananmen square Tiananmen square Dalai lama Dalai lamaDalai lama Dalai lama Dalai lama Dalai lama Dalai lama Dalai lama Free Tibet!

      There, fixed that for you

  3. Stealth by halcyon1234 · · Score: 3, Funny

    We think they're using some of our stealth tech. We tried to check, but couldn't find the plane. =(

  4. Whatsa matter? by PopeRatzo · · Score: 3, Funny

    You don't believe in the "free market"?

    --
    You are welcome on my lawn.
  5. Whats the problem? by www.sorehands.com · · Score: 5, Funny

    We got the technology for the F-117 Nighthawk from the downed alien space craft in Roswell. So why can't the chinese get it from us?

  6. Re:No surprise by mug+funky · · Score: 2

    brilliant!

    even if it were true, it's so stealthy that we couldn't see one to prove it :)

  7. Okay, so by Dachannien · · Score: 4, Interesting

    So our F-117A gets shot down by a Yugoslav-made SAM, based on a Soviet design, in Serbia ten years ago. The F-117A was already close to 20 years old at the time, and it was retired in 2008. This is definitely the tech I want to be copying for my state-of-the-art stealth aircraft.

    So, why exactly are we concerned that the J-20 will give the F-22 or F-35 a run for their money? We already know that the F-22 can splash (in mock combat) F-15s and F-16s with missiles before the F-22 is even detected. If the Chinese merely copied stealth tech from the F-117A and (apparently) photos of the F-35, is it really going to have good enough stealth to stand up against the F-22 or even just the F-35 in actual combat?

    1. Re:Okay, so by Luckyo · · Score: 5, Informative

      Concerns are based on two problems:

      1. Russians were above and beyond West in both radar tech and SAM tech by at least two-three decades according to jane's back when soviet fell apart and some US specialists got to poke at some soviet tech. It's one of the development areas known to have not stopped due to lack of funding as it was considered strategically important to Russia. Decades old S-300 is most likely capable or detecting and tracking F-117 if it comes close enough. S-400 was specifically built to track and kill B-2-generation aircraft and its derivatives in addition to cruise missiles. S-500 coming next year was officially designated as an "AWACS/Electronic warface aircraft killer" carrying insane sounding range of 600km.
      Most Chinese radar tech is direct derivative of russian tech. This was largely confirmed when US and Israel all but pissed their pants when hearing about S-400 being potentially sold to Iran - it would've essentially make any airstrike against Iran a one way trip for many strike craft and force to essentially use nothing but last generation stealth aircraft and still most likely take significant losses, cutting both Israel's options to zero and making US "plausible deniability" to any airstrike made zero as well.

      2. Air-to-air combat between two stealth fighters has a very high probability of becoming dogfight situation. This is very, very bad for US whose strategic approach is to field a low number of nigh-untouchable aircraft from remote bases and aircraft carriers using long and medium range radar guided missiles as their main weapon. Stealth on the opponent's side makes both early detection and radar guidance difficult, and makes superiority of your own aircraft much lesser then that of the opponent. Up until now, US was counting on fielding something around 200 stealth aircraft to suppress Chinese airforce in event of Taiwan escalation (the main conflict at the moment). China can field approximately ten times that at least. So strategically this requires each airstrike group being able to fight in at least 1:4 scenario, and win with minimal attrition. Old stealth may indeed still allow for numbers, but would raise attrition rates to unacceptable levels causing a strategic failure.

      We know how China's tech is mostly simply copied/licensed russian tech, we can trust that craft in question most likely have older, worse stealth, but significantly better radar system and most likely better tracking. We still couldn't fit helmet-mounted HUD and wide-angle tracking on F-22, it simply wasn't ready yet. It's a major feature of F-35 though, and it's a direct copy of russian tech reverse engineered from MiG-29 lifted from the few aircraft that Germany gained in unification. This system gives pilot tremendous advantage in dogfighting, and if chinese can indeed use older stealth to force F-22 into close range dogfights and has a copy of that old russian tech as well , F-22's superiority itself becomes questionable.

      Finally, there's an obvious home field advantage for stealth aircraft and radar usage. Firing up your active radar essentially nullifies your stealth to a large degree. This is why neither F-117 nor B-2 carry any kind of active radar. F-22, being an actual air superiority fighter however does, and would have to actually fire it up to engage enemy fighters stealthy enough to disallow passive guidance. This makes it vulnerable to ground-based interception as well as air based one.

      All in all, any opponent who is in possession of any stealth tech AND plans to fight inside or close to its border presents a number of strategic and tactical problems that opponent that doesn't have stealth fighters won't. Even in best-case scenario where Chinese wouldn't have access to russian radar tech and software, this would cause a major headache and significantly more restrictive rules of engagement, cutting down strategic options.

    2. Re:Okay, so by MarkvW · · Score: 2

      You are thinking like all of the anachronistic fighter pilots of the world want you to think.

      The question isn't whether the foreign plane can splash a F-22 or F-35, the question is whether it can splash a legion of drones armed with the latest antiaircraft missiles and detection technology.

    3. Re:Okay, so by Luckyo · · Score: 3, Interesting

      China can field 2,000 stealth aircraft?

      You sure are pulling a lot of numbers out of your ass ....

      Air superiority aircraft. When you're defensive, you don't have to have a lot of stealth ones. Just enough to force enemy stealth fighters to power up their own fire control radar. The numbers are real, and have been published by various credible defense journals, Jane's being one.

      Except the F-22 has the ability to share sensor data with other aircraft. So you can send one F-22 way forward, hit the enemy with your active radar, then have the 10 F-22's behind it light up the bad guys with missiles without needing to operate any of their own sensors. That tech alone gives it a massive advantage over anything else in the skies today. Add to that the fact that China has no missiles capable of being used at ranges available to the F-22, and you're left with the conclusion that even if the Chinese have somehow managed to develop an aircraft with decent radar and stealth characteristics similar to the F-22, they'd still be heavily outmatched in any encounter.

      Which once again, brings us to the problem of uneven ground. US is not expecting to field it's craft in the neutral or friendly, but hostile territory. This means that friendly guidance vs even low grade stealth is going to be non-existent, and enemy ground radar installations are functional and unsuppresed. The goal of chinese fighter is NOT to win toe-to-toe match vs F-22. It's goal is to push back US AWACS craft into ineffective range and force F-22s to fire up their own fire control radar or retreat due to lack of targeting data when achieving it's main task of winning air superiority.

      And for this, chinese don't need 2000 air superiority aircraft. They need a small percentage of stealth air superiority fighters and a large conventional air superiority force which will move in the moment F-22's stealth is compromised.

    4. Re:Okay, so by Luckyo · · Score: 2

      And missing word in last paragraph, it's supposed to say "2000 stealth air superiority aircraft". Point being that most of the air force can be conventional.

    5. Re:Okay, so by Luckyo · · Score: 2, Interesting

      Ah, that makes more sense. Not sure why you think this would force anyone to "power up their own fire control radar", though. In simulated engagements F-22's have generally operated on passive sensors, even when engaged by an opposing force an order of magnitude larger than their own.

      The more of the opponent's forces in the air, the less you want to paint huge crosshairs on yourself by firing your own active radar. When you are actually forced into pushing air superiority without friendly radar support (i.e. escorting bomber planes to enemy radar installations/airfields), you will likely have little choice in the matter.

      The US isn't planning on flying it's aircraft thousands of miles into enemy territory - most engagements are likely to take place over neutral territory or coastal areas. Do you honestly think that the US wants to invade mainland China?

      You can use the actual names. Taiwan. And yes, to gain air superiority over Taiwan, US will have to hit mainland China, as pretty much all radar installations and airfields are there.

      Else, you can kiss air superiority good bye, and without it, US has nothing on China as far as conventional warfare goes.

      This means that friendly guidance vs even low grade stealth is going to be non-existent, and enemy ground radar installations are functional and unsuppresed.

      I don't see how that follows, even given your initial (flawed) premise.

      To get radar guidance for missiles, stealth fighter requires active radar guidance from another source. To get active radar guidance from another source, that source has to be in meaningful range, and unsuppressed by the enemy. Enemy stealth fighter goes to hunt for your AWACS, which is forced to pull out, leaving you without radar support. You either fire your own radar and die, or rely on passive sensors deep in enemy territory, and get overwhelmed anyway at the time of airstrike at the latest, as enemy will know your general location and simply bombard the area with radar coverage at which point their conventional air superiority aircraft cause significant attrition in your forces.

      The goal of chinese fighter is NOT to win toe-to-toe match vs F-22. It's goal is to push back US AWACS craft into ineffective range and force F-22s to fire up their own fire control radar or retreat due to lack of targeting data when achieving it's main task of winning air superiority.

      Sure. Good luck with that. Before you can push back the AWACS, you have to get through the F-22's, F-35's, and assorted other aircraft being fielded. This is a bit like saying "the goal of our infantry is to push back their artillery". Far easier said than done.

      It's actually quite a bit easier to kill an AWACS craft (which usually means a retrofitted civilian airliner with a radome) with a low grade stealth fighter then to defend one from it. F-22s and F-35s escorting these will face the same dilemma - how do you defend against something you can't see until the strike is executed.

      As strategic value of each AWACS craft is far greater then of each stealth fighter, these will be the priority targets for chinese stealth fighters in air superiority war. Sure, you'll kill most if not all chinese stealth fighters. But not before your AWACS is gone and your guys inside enemy territory find themselves without AWACS capabilities.

      And for this, chinese don't need 2000 air superiority aircraft. They need a small percentage of stealth air superiority fighters and a large conventional air superiority force which will move in the moment F-22's stealth is compromised.

      A "small percentage of stealth aircraft" isn't likely to compromise anything. They'd have to detect the F-22 - which seems highly unlikely - AND avoid detection from the F-22's passive sensors in the process - which is impossible.

    6. Re:Okay, so by AK+Marc · · Score: 2

      Before you can push back the AWACS, you have to get through the F-22's, F-35's, and assorted other aircraft being fielded. This is a bit like saying "the goal of our infantry is to push back their artillery". Far easier said than done.

      You have enough moderately stealthy aircraft out to target the AWACS only, and let me know whether that works. They aren't sending naked infantry to attack someone's artillery. They have their own artillery they want to move into position to attack yours. Even if it's only a short attack with great losses to their side, it will be able to reach your artillery. With artillery being expensive enough, you either leave it there as a target and hope their losses are greater than yours, or you pull it back. I can't guarantee it will work, but a moderately stealthy plane in sufficient numbers should be able to launch a successful attack against an AWACS, even though other planes. Just like taking your infantry example and pointing out that it has been successfully done many times, as long as the infantry is the right ones (special forces, paratroopers, and such). Infantry does have the ability to strike artillery that's hundreds of miles behind the front.

    7. Re:Okay, so by AK+Marc · · Score: 2

      So there's no difference between hard to detect and easy to detect?

  8. there's a standard solution to this by l2718 · · Score: 2, Insightful

    The US could have (should have?) bombed the wreckage at the time.

    1. Re:there's a standard solution to this by darkmeridian · · Score: 4, Insightful

      The US didn't bomb the wreckage because the scene was soon overrun with civilians, which was broadcast on CNN. It would have been horrible PR if those civilians dancing on the wreckage suddenly disappeared and the image faded to static.

      --
      A NYC lawyer blogs. http://www.chuangblog.com/
  9. Re:No surprise by icebike · · Score: 3, Informative

    The 117 is old hat, and was never all that stealthy.

    The new Chinese J20 fighter reported recently is based on features found on much later US and Russian designs, and bears little resemblance to the F117.

    Technology stolen would probably include anti-radar coatings and perhaps engine and avionics.

    The J20 is simply too big to be very stealthy.

    --
    Sig Battery depleted. Reverting to safe mode.
  10. F-117A is a bomber by molo · · Score: 2

    The F-117A is a bomber or "ground attack" aircraft, it is not an air-to-air fighter, despite what stupid movies and popular media say. This summary is also incorrect in calling it a fighter.

    -molo

    --
    Using your sig line to advertise for friends is lame.
    1. Re:F-117A is a bomber by Orestesx · · Score: 2

      The misunderstanding is forgivable considering the "F" designation and irrelevant to the purposes of the summary. Give it up, "Stealth Fighter" is part of the lexicon.

  11. Re:Not stopped by CIA bombs by PraiseBob · · Score: 5, Interesting

    In March it was shot down, in May, the US "accidentally" bombed the Chinese Embassy. There was widespread speculation the next day that it was to destroy stealth material. It wasn't a random bomb that fell onto Embassy grounds, but the most precise bomb that was available, with GPS coordinates given by the CIA rather than military intelligence, and dropped right on top of a specific foreign agents office, 5 times.

    http://en.wikipedia.org/wiki/U.S._bombing_of_the_Chinese_embassy_in_Belgrade

  12. Re:This story is BS by UnknowingFool · · Score: 4, Informative

    So you know exactly what was in the the paint that the F-117 used? What about the materials used in the inlet cover of the plane to mask the engine noise and radar signature? How about the ceramic used to cool and disperse the heat in the exhaust? Just because you can see a schematic of the plane today doesn't not mean there are some facts that have not been disclosed. If foreign governments got the parts, they could analyze and reverse engineer them. There isn't a government (friendly or hostile) on this planet that wouldn't be interested in obtaining parts of a downed stealth fighter.

    --
    Well, there's spam egg sausage and spam, that's not got much spam in it.
  13. what stealth fighter? by Chaostrophy · · Score: 4, Insightful

    We have some blurry photos of a largish fighter or light bomber, with a shape that looks like it was designed with a low RCS (Radar Cross Section) in mind, that would be done using equations the USSR published in the 1960s (never thinking that computers would become fast enough for them to be practical). What you would get from an F117 wreck would be RAM (Radar Absorbant Materiels), but how you can tell what an aircraft is made from via those photos is beyond me. Get the info from a US aircraft trying to track it, and you can say something, but all we can do with what is known now is speculate (which sure is fun).

    --
    Plato seems wrong to me today
    1. Re:what stealth fighter? by Kumiorava · · Score: 4, Insightful

      Shh... the point is to get approval for F-XX uberstealth fighter project that will maintain the US air supremacy. Military-industrial complex needs bigger and better enemies as the wars in the middle east can be fought with current low tech equipment. If you read the news articles they are wondering if this will offset new arms race, several companies are counting on that.

  14. It's "Open Source" development by billstewart · · Score: 3, Insightful

    One of the more serious problems with the military-industrial complex's development process, besides obvious little things like threatening to kill millions of people and possibly initiate nuclear winter, is that it takes a large number of scientists and engineers and diverts them away from useful civilian technology and diverts their talents to working on projects that ideally will never be used, and hides any parts of that work that could be useful away where the public can't use it.

    There are occasionally useful technologies that escape - this "Internet" thing really is more convenient than uucp and Usenet were, and GPS is really cool but there are other ways to implement wide-area navigation systems without satellites. But they guys who were making tank engines 20% more efficient could have been doing that for truck engines or car engines, and the people working on improving small supersonic airplanes could have been improving civilian passenger or cargo airplanes instead.

    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
    1. Re:It's "Open Source" development by Wyatt+Earp · · Score: 2

      Increasingly efficient and powerful turbofans are because of military research, your better tank engine technology actually comes from the private sector and is adopted for the military.

      Technology goes both ways very quickly between the private sector and military since many military platforms are based on civilian platforms. For example, the C-17 cargo aircraft's engines are derived from the engines for the Boeing 757 and will be an option for the new Russian civilian airliner the Il-96.

      The engines of the CRJ-700-900 are derived from the engines designed for the A-10 Warthog.

    2. Re:It's "Open Source" development by number11 · · Score: 4, Interesting

      One of the more serious problems with the military-industrial complex's development process, besides obvious little things like threatening to kill millions of people and possibly initiate nuclear winter, is that it takes a large number of scientists and engineers and diverts them away from useful civilian technology and diverts their talents to working on projects that ideally will never be used, and hides any parts of that work that could be useful away where the public can't use it.

      A long time ago (perhaps in the 1960s) I saw a quote from the head of one of the major Japanese corporations. Might have been Sony, but I can't find it now. He said (something like) "American engineers are very good, American first-rate engineers are better than ours. But your first-rate engineers are working on military products. We're building consumer products, and win in the marketplace because our first-rate engineers are better than your second-rate engineers."

  15. Re:No surprise by Suki+I · · Score: 2

    This shouldn't be a newsworthy headline. This is what a newsworthy headline would look like:

    "Chinese Stealth Fighter Uses Only Chinese Technology"

    The Onion version: "Chinese Stealth Fighter Uses Only North Korean Technology"

  16. Fear sells weapons by sjbe · · Score: 5, Insightful

    As for the new Chinese stealth fighter, it's reported to be an even match for the Raptor...

    You mean the J-20 which is due to be operational 6-8 YEARS from now? Most of what is "known" about it is just speculation based on some very limited information. Most performance projections are going to be pure conjecture until more information is available.

    As for matching the F-22, did it occur to you that the folks selling the F-22 might have a vested interest in proclaiming this jet to be competitive with the F-22? Fear is a great way to sell weapons. It's certainly possible to design a jet to match the F-22, but its not remotely clear that this Chinese jet reaches or will reach that level of performance.

  17. Re:Not stopped by CIA bombs by SpazmodeusG · · Score: 5, Insightful

    After that incident i always found it odd how the media reacted to such things. The media never reported on just how blatant the strike was. Instead the main stories been reported around the time were "attacks on US nationals increase" as various Chinese protest groups vented their anger on American government buildings around the world. Essentially the reports were made to make the Chinese look bad.

    Now it's obvious that Chinese media is a complete farce. It's state controlled and blatantly so. But i also have to wonder if our western media isn't exactly the same but just smarter about it? Sure it isn't blatant like Pravda or China Daily but our western media still seems to reach for the same goals as Pravda and China Daily would. From getting people behind support of a war to excusing completely unjustifiable actions. Our media seems no better, just smarter and less blatant. Probably makes our media more dangerous than theirs to be honest.

    Similar things happened in the Hainan Island spy plane incident. The Chinese returned the crew in perfect health and the also spy plane to the US but they were the bad guys according to the media i'm exposed to. I really don't get our media. I'm sure if the roles were reversed China would still be made out to be the bad guys.

    Yet again the same thing with the Iraq war. There were never any links to Al-Qaeda. No WMDs. But our media didn't even report that as a possibility in the lead up to war.

  18. Old by headhot · · Score: 5, Insightful

    The F-117 is 25-30 year old technology at this point. I would be more worried about the tech being freely handed over to China by companies like Boeing when they go into partnerships with Chinese state owned firms.

  19. Re:This story is BS by DerekLyons · · Score: 3, Informative

    Yep. As I pointed in another post, the details matter - a great deal. If the stealth fighter (which I have no experience with) is anything like nuclear submarines (which I do have experience with), what's on the web and other places isn't actually all that detailed or informative. (Not to anyone who actually knows the details that is, though it may impress the less well informed.)

  20. Occam's Razor by sjbe · · Score: 5, Insightful

    What exactly is the basis for these claims that the tech is stolen and they cant do it on their own?

    The fact that China is not a major exporter of aircraft, particularly of the cutting edge military variety. The fact that they don't even produce a 4th generation fighter of their own design (most of their fighters are copied/adapted from Russian designs) and suddenly they unveil this supposed 5th generation fighter supposedly without any foreign technology. Major leaps in technology like that generally do not happen without some help. The Chinese are smart people but development of that kind of technology takes time and infrastructure neither of which seem to be applicable here. It's not that they couldn't do it; it's just that it is unlikely that the could do it that fast without getting a little boost on the information front.

    Stealth has been around for a long time

    No it hasn't and what has been around is among the more highly guarded secrets among the military forces that have access to it.

    Chinese may well have found a way to do it.

    Certainly possible, though the smart money says that they probably acquired significant amounts of knowledge through spying. Please note that this isn't a condemnation, every country spies including the US. China acquiring this technology illicitly seems the most likely source.

    there have been a lot of Chinese researchers in the US, they may not have worked directly on the projects, but definitely there must be many who worked on relevant projects, and nothing is stopping them from taking the knowledge back to their country with them.

    You think the defense industry isn't aware of that possibility? I've been in factories where they make fighter jets. Foreign nationals are quite carefully monitored and aren't given access to sensitive technology without some very careful background screening.

  21. J-20 info by Orgasmatron · · Score: 3, Informative

    Air Power Australia has excellent coverage of the J-20.

    Chengdu J-XX [J-20] Stealth Fighter Prototype: A Preliminary Assessment
    J-20 Stealth Fighter: China's First Strike Weapon

    And if you want to know why scrapping the F-22 was a bad idea and why the F-35 won't cut it in future conflicts, read this: Surviving the Modern
    Integrated Air Defence System

    --
    See that "Preview" button?
  22. J-20 doesn't look like a finished aircraft by maroberts · · Score: 2

    It's a prototype or technology testbed. I wouldn't be surprised to see the J-21 (or whatever they decide to call the next prototype) feature Chinese designed vector thrust engines with more power when they can get them figured out and to improve dramatically on its stealth capabilities.

    The aircraft is quite big, so I'm not sure its truly a fighter as some sort of attack aircraft. In that role it can be argued that provided the front stealth technology is good it doesn't matter how bad the RCS is when it is leaving the combat zone.

    Whilst I'm sure there may be an element of truth in the claims that the Chinese and Russians wanted bits of the F-117, its hardly news. The US has repeatedly used stuff from Russian aircraft that have landed in the West(or Japan) when their pilots wanted to defect, so there's hardly anything surprising about the Chinese wanting to analyse fragments of the downed US aircraft.

    I don't think that they used much of the F-117 tech in the J-20 though - it looks like a sort of Eurofighter combined with an F-22.

    What also surprises me is why everyone seems to think the Chinese aren't capable of doing this on their own - thousands of engineers who were taught in western Univercities have graduated, returned to China, and some are no doubt applying their skills in the military avionics fields. I also would not be surprised if leading Chinese universities produce graduates and phd students equal to the best the west can offer

    --

    Donte Alistair Anderson Roberts - hi son!
    Karma: Chameleon

  23. Re:"the US's budget is 10x China's" -- BOGUS by smash · · Score: 2

    The USA did the same, and managed to fool those ... who chose to be fooled by the never-ending "freedom initiatives", even after the US invasion of Afghanistan (and Iraq).

    Fixed that for you.

    --
    I run: Windows, OS X, Linux, FreeBSD. Just because you have a hammer, doesn't mean everything is a nail.
  24. Re:"the US's budget is 10x China's" -- BOGUS by smash · · Score: 3, Insightful

    Also, the US economic model is currently proving to not be sustainable, either.

    --
    I run: Windows, OS X, Linux, FreeBSD. Just because you have a hammer, doesn't mean everything is a nail.
  25. Re:Not stopped by CIA bombs by 91degrees · · Score: 3, Insightful

    You won't get locked up in China for leaking US Embassy memos either, so it's not really a fair comparison.

  26. Re:No surprise by N22YF · · Score: 2

    Technology stolen would probably include anti-radar coatings and perhaps engine and avionics.

    The J20 is simply too big to be very stealthy.

    Size has little to do with stealth. The B-2 is about seven times as big as the F-117, but still manages a radar cross-section of 0.1 square meters.
    Not to mention that we don't actually know the J-20's dimensions or weight. It may not be any bigger than an F-22.

    Anti-radar coatings is a reasonable guess, but China has access to much more modern engine and avionics technology via Russian fighter jets.