Chengdu J-20 5th Generation Aircraft News & Discussions

[April.lyrics]

By that token we can expect the WS-10's poor 1600 hour life to also be a paper claim....

hey,if russia would like to sell 117s at a convinient price,i think we should think about it.

thats what all businessman do.dont hurt ur trading partner

 

[ChineseTiger1986]

yeah,one witness(机外停车 in the picture) said J-20 flew 3 time on Sep.22nd.

Just the next day,on Sep.23rd,J-20 was pulled out before 10 a.m.and did some roll in the sky and 机外停车 photoed them。

看来矢量发动机很给力了，看看爱抚娘娘复出后的第一个高难度动作，咱们的黑丝和她相比怎么样？

http://player.youku.com/player.php/sid/XMjgzMTAzMzI4/v.swf

 

[ChineseTiger1986]

then please educate us why russian engines only having few hunder hourse life spam, but Chinese and Western engines have few thousands? as according to your limited knowledge that every engine has to be perfect otherwise 'catastrophy'``

the major issue WS-10 had in the past was the quality consistancy of the fac blades during production... not the design of the WS itself.

there are 41 WS-10 engines were produced and non-stop tested since late 1990s, (life spam 1600 hrs like double those of AL-31s) for last few years the main focus was to improve WS production line quality control management not the technical design of WS.

Now the quality control for the mass production has been solved.

And F-110 has encountered the similar problem during the 1990s.

---------- Post added at 04:26 AM ---------- Previous post was at 04:24 AM ----------

hey,if russia would like to sell 117s at a convinient price,i think we should think about it.

thats what all businessman do.dont hurt ur trading partner

The 117 engine would be a good choice for the export version of our stealth fighter, so we could still consider it if its price is really cheap enough.

 

[ptldM3]

Another blank cheque just like claiming build 5-6 carrier battlegroups which you have built none so far.

Gimme a break, the 117 engine with 4000 hours of lifespan? Who are you trying to fool?

Pure denial, that is low of you, low but expected.


The truth is hard to swollow, but the claims are officially from Saturn and the engines have undergone and passed endurance tests long ago To be more specific 5 engines or batches have been tested including two that were sent for in flight tests onboard the SU-35 117S-04 and 117S-05, and recently the pre production SU-35S has been undergoing flight tests.

As for your imature and off topic aircraft carrier rant, the blue prints for the future carrier(s) will not be ready until 2012, so your rant just backfired.

 

[ChineseTiger1986]

Pure denial, that is low of you, low but expected.


The truth is hard to swollow, but the claims are officially from Saturn and the engine have undergone and passed endurance tests long ago To be more specific 5 engines or batches have been tested including two that were sent for in flight tests onboard the SU-35 117S-04 and 117S-05, and recently the pre production SU-35S has been undergoing flight tests.

As for your imature and off topic aircraft carrier rant, the blue prints for the future carrier(s) will not be ready until 2012, so your rant just backfired.

Our deal of Il-76 was toasted because you guys keep making the blank cheque. Meanwhile it pushed us to develop our own cargo Y-20.

BTW, you can keep posting your statement. However, none of these would be convincing for us.

 

[ptldM3]

Our deal of Il-76 was toasted because you guys keep making the blank cheque. Meanwhile it pushed us to develop our own cargo Y-20.

BTW, you can keep posting your statement. However, none of these would be convincing for us.

Spare us the your pathetic off topic rants, what do aircraft carriers and IL-76's have anything to do with the 117s claimed engine life? At least if you're going to go into an off topic rant get your facts in order so you do not look like a fool.

And who is 'us' thus far you are the only one claiming that the 117s figures are fabricated so do not try to drag others down into your agenda or pretend that you have the support of others because you are alone here. And the statements come directly from Saturn so really your argument or lack there of equates to nothing more than a bias opionion.

 

[conworldus]

The AL31 supplied to China go between 600-800 hours. They need to be replaced every 3-4 years because of it, thus the recent order of another 128 AL31. Don't know about 117, but for China to buy it would be incredibly stupid given that the AL31 track record is far from good. For export a WS variant would be better. I don't expect any more engine order from Russia as WS is maturing except a few replacement orders for J-10A and J-11. Another option is to structurally upgrade the old J-10A and J-11 to retrofit the WS10A but I am not sure it is economical.

 

[ChineseTiger1986]

Spare us the your pathetic off topic rants, what do aircraft carriers and IL-76's have anything to do with the 117s claimed engine life? At least if you're going to go into an off topic rant get your facts in order so you do not look like a fool.

And who is 'us' thus far you are the only one claiming that the 117s figures are fabricated so do not try to drag others down into your agenda or pretend that you have the support of others because you are alone here. And the statements come directly from Saturn so really your argument or lack there of equates to nothing more than a bias opionion.

Ok, you can say whatever you want, but we simply don't believe it.

 

[conworldus]

Ok, you can say whatever you want, but we simply don't believe it.

There was this drunk ex-Russian military engineer who told me in his extremely intoxicated state: "Mother Russia can make anything, with absolutely NO GUARANTEE that it can work!"

 

[ChineseTiger1986]

There was this drunk ex-Russian military engineer who told me in his extremely intoxicated state: "Mother Russia can make anything, with absolutely NO GUARANTEE that it can work!"

Hopefully their engineers can leave the alcohol.

 

[ptldM3]

The AL31 supplied to China go between 600-800 hours. They need to be replaced every 3-4 years because of it, thus the recent order of another 128 AL31. Don't know about 117, but for China to buy it would be incredibly stupid given that the AL31 track record is far from good. For export a WS variant would be better. I don't expect any more engine order from Russia as WS is maturing except a few replacement orders for J-10A and J-11. Another option is to structurally upgrade the old J-10A and J-11 to retrofit the WS10A but I am not sure it is economical.

Learn the difference between mean time between overhauls (MTBO) and service life. The AL-31 that China originally received is a 30 year old engine and the MTBO is 1000 hours. Every engine is different and the MTBO as well as service life is only a guideline. The MTBO as well as service life is dependent on how much abuse the engine receives, this abuse can be in the form of small debris being sucked into the engine, or poor fuel grades which will cause the fuel filter to foul up and thus cause a lean air fuel mixture. Even the way or how often a pilot uses the throttle can have consequences on the gear box.

A good example would be the German Luftwaffe and their Mig-29's, the Germans managed to reduce the operating temperature of the RD-33 and as a result the MTBO was doubled. This would also equate to afterburner mode, an engine that sees a lot of afterburner will likely need to have overhauls more often.

Two AL-31's with the same hours clocked being brought in for MTBO will not always have the same parts replaced. A visual expection as well as a diagnostics will reveal what if anything needs to be replaced.

There was this drunk ex-Russian military engineer who told me in his extremely intoxicated state: "Mother Russia can make anything, with absolutely NO GUARANTEE that it can work!"

Spare us your nonsense half the Chinese member on this forum have claimed something similar, no matter what part of the world you go to some random Chinese guy always seems to stumble upon a random drunk Russian engineer.

 

[aimarraul]

AESA T/R module

 

[no_name]

^^^ Are those for ships? They look somewhat large in size.

 

[siegecrossbow]

Newest test flight video from the 23rd. Luckily the guy's hands were relatively steady/he picked a pretty good spot. People who are motion sick shouldn't worry about it:

 

[pzkilo]

我们不会用117s做4代发动机的，117s在各方面都达不到4代发动机的标准，其本来也不是作为4代发动机而发展的，我们自己的ws15现阶段进展很快很好，不出意外也就这2年了。 20必须是矢量，不然机动难以赶的上f22。 而117s要买的话也是为其他飞机买的，但是我还是感觉希望不大，因为太行也在成熟中，各种太行改型也在发展。

这些俄国佬最悲剧的是老还把自己当苏联，老拜托不了自己早已不是超级大国了这一状态