Shenyang FC-31 / J-31 Fighter Demonstrator

delft

Brigadier
The F-22 and the F-35 are indeed the only operational stealth fighters in the world, you can count China and Russia's flying prototypes on each hand, not to be obnoxious. To be precise there are now more "operational" coded F-35s than test aircraft. To assert otherwise as you seem to be makes you the delusional one? so much for the logical and reasonable, obviously no one in China who is a civilian has much access to information, thats not a big deal, and I find it frustrating myself, but thats the way the Chinese government does business, so what? In contrast much of what Chinese citizens know about their own military is what "Western Analysts" dig up, so what? Thats the way the US government does business, and in the process informs lots of us about forces world-wide, friend or foe, or like the election maybe "undecided"?
A few examples of the F-35 have been delivered to the school in Florida but it will still take a long time before it is operational. That more F-35 's are coded operational is just to impress Congress. Much of the information provided by the US government is little more reliable than that about Saddam Hussein's WMD's, in the sense that a lot will be true but it also contains a lot of propaganda that even we cannot reliably detect.
 

hardware

Banned Idiot
metal composite matrix,,I do recall back in early 2000,tsinghua university research paper do propose titanium and carbon fibre.then "cook" for half day. paper. the article is very brief posted in top81.com
 

Lion

Senior Member
I am not saying this to instill flame in this forum. I acknowledged that the Chinese had come a long way and is no longer the third world country as seen in the 80s. Their aerospace industry had also been very very rosy. However, I would not go so far as to say that the Chinese had surpassed the Russian and European countries in term of engine developement and manufacturing sector.

Look, China started off pretty late (not that it is of any problem) and the Europeans and Russian are already up and going. Up till now, I am only seeing that the WS-10A engine which shows promises and had been equiping their fighters in masses and so far no report of any problem yet. The WS-15 are still in developement, no one know how good that engine is until it had reaches mass production and was fitted in the fighters and fly for a while...

The European on the other hand are coming up with great engines... look to Roys Royce and the already mentioned companies. Also brought up by Mig-29 - the civilian A380, which had no equivalent in China (although China did take part in building some of the components and subassembly like the wings section).

As to Russia... their economic had been in a sham for decades after the break up of Soviet Union, but their technology base was still very very strong. And the recent introduction of the T-50 which make use of almost totally Russian technology (including the engine department) and also the Su-35 (which also used their own engines) is proof enough that the Russian are still going strong.

The Chinese even with their latest J-21/J-31 or F-60 prototype might use Russian engines to fly first. So if the Chinese are that confident in their own design, I couldn't figure out why they needed to do that... the few explanations I can find is that the Chinese still didn't have an engine that they are confident in, or that the Chinese are aiming this aircraft for export and the target market are those customer that are flying Russian aircrafts and had assess to the Russian engines.

So in conclusion, I am a watcher, I would tend to wait and see the progress of the Chinese aerospace industry first for a while longer, before jumping in and declare that the Chinese are already up there... surpassing the European and Russian... At the most, I think they might be on par in certain areas as compared to the European and Russian... but to surpass them... the Chinese still have some distance to cover.

J-20 did fly with domestic engine. Certainly not Al-31F engine. Maybe some variation of WS-10A. As for J-31, certainly the WS-13 is still not ready but WS-13 is not a top priority engine in development for PLAAF.

J-16 fly with WS-10A too. Chin are going for WS-15 which thrust is not match anything except by US. Europe has no something similar of project. Russia has their AL-41 going but it remained to be seen whether it can match the timeline. China by far has more resources or manpower may well finished much ahead of Al-41.
 

MiG-29

Banned Idiot
Both AL-31 and AL-41 were designed by Soviet Union, with contributions made by various republics, using the resources of Soviet Union. If AL-31 and AL-41 do not exist, there would be no 117 engine. Simply put, Russia integrated the technologies from the two engines, but the true credit belongs to Soviet Union for creating the two engines in the first place.

Look you can try your best to lie to your self but 117 and 117S are not an Al-31, they are new engines, so different that in the United Engine Corporation they are listed as different engines
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, plus the fact is T-50 can Supercruise and also MiG 1.44 could supercruise, the only reason Al-41F was not used is because Russia miniaturized the technologies of Al-41F to make it fit into T-50 because Russia wanted a smaller and cheaper jet than MiG 1.44.

117S=Al-41F-1
the Credit is to the same engineer Victor Mikhailovich Chepkin who is a Russian now and was a Soviet citizen and who worked in the Al-41 and 117 projects as the Chief Designer of both Projects
 
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MiG-29

Banned Idiot
J-20 did fly with domestic engine. Certainly not Al-31F engine. Maybe some variation of WS-10A. As for J-31, certainly the WS-13 is still not ready but WS-13 is not a top priority engine in development for PLAAF.

J-16 fly with WS-10A too. Chin are going for WS-15 which thrust is not match anything except by US. Europe has no something similar of project. Russia has their AL-41 going but it remained to be seen whether it can match the timeline. China by far has more resources or manpower may well finished much ahead of Al-41.
Russia still has 15 Al-41Fs engines at Saturn facilities from the MiG 1.44 project, that engine is 18000kg of thrust, type 30 also is 17000kg, Russia has catch up already with the US in jet engine technology and Europe has EJ-200 that allows Eurofighter to supercruise
[video=youtube;mQ7rrzC-cQo]http://www.youtube.com/watch?v=mQ7rrzC-cQo&feature=related[/video]
 

Hyperwarp

Captain
the PAK FA engine fan blades are most likely made of non-reflective composite materials. The Russians were aware that S-ducts configuration would reduced RCS. They have been implemented on the Su-47. But apparently they believed that non-reflective fan blades is the way to go.

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Thats a future possibility from what I understood. But, right now, the PAK-FA will have a blocker (T-50-3 onwards) not too unlike the X-32 (Not a fixed-blocker like in the F/A-18E/F). The blocker will tackle the exposed engine face.
 

Air Force Brat

Brigadier
Super Moderator
A few examples of the F-35 have been delivered to the school in Florida but it will still take a long time before it is operational. That more F-35 's are coded operational is just to impress Congress. Much of the information provided by the US government is little more reliable than that about Saddam Hussein's WMD's, in the sense that a lot will be true but it also contains a lot of propaganda that even we cannot reliably detect.

Truth is a little hard to take when you live in never, never land, so how about we talk about aeroplanes instead of these worn out fantasies of yours, I see we have more than one delusional thinker on this thread, but we have hardware, and it IS coded OPERATIONAL! Now for some factual reading check out todays Air Force Magazine Daily Report 9/25/12 for their take on the J-31. Then you could fire off a few letters to the editor, I'm sure he would enjoy hearing from you?
 

NikeX

Banned Idiot
Again, pushing the fringe of new technology goes at a slower pace than catching up with old ones. This is true of every industry, and its why countries eventually close technology gaps. There's no doubt those same manufacturers are working hard to create new stuff, but it takes more time to discover, test, and build the tools for new technology than it does to figure out and build old ones.

The pace of the creation of new technology depends on the system allowing the creation. In a free-to-create system you can have unrelated conditions coming together to create new technologies where those technologies formerly did not exist. The examples are the Wright Brothers creating an aircraft in their bicycle shop, or Hewlett-Packard being founded in a one-car garage in Palo Alto by William (Bill) Redington Hewlett and Dave Packard to create a personal computer market where one did not exist before. Or even Apple computer being started by founders Steve Jobs and Steve Wozniak in a garage to go on to create an industry that did not exist before.

The point is that China is not set up like that. China is not set up to allow seemly unrelated technologies to come together in a manner that gives birth to a completely new direction.

And this is why the constant cry in China is to innovate. Innovation is the weak spot in the Chinese system. And to state that pushing the fringe of new technologies goes at a slower rate than those trying to catch up fails to take into account the creative energies flowing in cultures that make it possible for somebody in a garage to come with something that can spawn a completely new industry seemly out of nowhere.

There will always be innovation flowing that will maintain the creative edge for those countries with the lead. They realize that their lead is maintained by out the box thinking. Its literally in the DNA. And that out the box thinking makes it very difficult for those countries with a step by step incremental approach to development of technology to ever gain a lead. The more they become dependent upon following the more they will be followers
 

MiG-29

Banned Idiot
Truth is a little hard to take when you live in never, never land, so how about we talk about aeroplanes instead of these worn out fantasies of yours, I see we have more than one delusional thinker on this thread, but we have hardware, and it IS coded OPERATIONAL! Now for some factual reading check out todays Air Force Magazine Daily Report 9/25/12 for their take on the J-31. Then you could fire off a few letters to the editor, I'm sure he would enjoy hearing from you?

Air Force Magazine Daily Report 9/25/12

China's second stealthy-looking fighter design emerged on the Internet as Defense Secretary Leon Panetta kicked off his diplomatic visit to Beijing last week. The Shenyang F-60—also called the J-21 or J-31—resembles the F-22, but with the intakes of an F-35 strike fighter. The F-60 appears to lack the Raptor's stealthy thrust-vectoring engines, and there appear to be no attempts at a reduced radar cross section with the engines currently installed in the airplane. The F-60's canopy, nose, and planform seem to be nearly identical to that of the F-22, and the airplane appears to be not too much different in size from the F-22. The photos seem to show internal weapon bays arranged similarly to the F-22's, as well as a ruggedized undercarriage potentially suited to carrier-deck operations. Photos earlier this year of a heavily shrouded F-60, partially disassembled en route to testing, revealed that the aircraft is smaller than the Chengdu J-20, which the Chinese unveiled at the end of 2010, but little else. While the larger J-20 is likely designed for longer range strike, the F-60 may be optimized for an air superiority role similar to the F-22's

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MiG-29

Banned Idiot
Thats a future possibility from what I understood. But, right now, the PAK-FA will have a blocker (T-50-3 onwards) not too unlike the X-32 (Not a fixed-blocker like in the F/A-18E/F). The blocker will tackle the exposed engine face.

it is difficult to know what are they using because Plasma stealth was used on MiG 1.44 and a blocker and engine composites is possible some engines use already composites already watch video

[video=youtube;zy4A-z2WKhw]http://www.youtube.com/watch?v=zy4A-z2WKhw&feature=channel&list=UL[/video]
 
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