China Flanker thread

[Dongfeng]

Hi Dongfeng, I live in the UK as well. And I don't have Sky, either. But you can download the programme from

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. It's been uploaded every week.

Thank you for the link.

Yeah, Sky is too expensive and I have little time to watch TV anyway.

By the way, I compare the engine nuzzle of the J-10 prototype (in dark blue painting) and that of the production variant today, and they do look slightly different. According to the internet report, the AL-31F is actually slightly smaller than the WS-10. Therefore the production variant J-10 is slimmer than the first five prototype.

 

[crobato]

Yes, I can read and speak Chinese as I'm a Chinese. However, i don't have access to Phoenix Satellite Tv so didn't watch the programme.

It now appears that there is WS-10 and there is WS-10A. A reported posted on Chinese Internet yesterday confirmed that among the seven J-10 prototypes, the first five are actually powered by indigenous WS-10 while only the 6th and 7th are powered by AL-31F. This is very shocking since we all thought that without AL-31F the J-10 wouldn't even fly! My guess is that WS-10 is not entirely succssful so they have to switch to AL-31F on production variant.

I am watching the development of the situation closely but at the moment it is very difficult to make sense to lots of things.

It is a shock to me too. The first five are

J-10 01
1002
1003
1004
1005

All by the way still flying.

However, I won't say the engine is not a technical success, and certainly its not a failure in reliability. The J-10 01 used up its airframe life and that is at least 4000 flight hours.

The planes have a slightly thicker silver ring than the other J-10s. I thought this was a matter of a slight revision in the AL-31FN prototype vs. serial production.

And once again, there is absolutely no way you can tell the engines from the nozzles.

I would say, the WS-10 loses to the AL-31FN in sheer power, and because it spools longer. That's 24,000lbs of thrust vs. 27,500lbs of thrust. Who would you choose? Right now, you also have this choice to make, since the WS-10A is rated at 13,200kg (129kn) or 29,000lbs, but the AL-31FM1 is rated at 13,700kg (132kn) and has a TVC nozzle. You want the Hecho en Chino label in your engine, or you want the higher power.

 

[Chengdu J-10]

WS-10=107kN of thrust =24,000Ibs
WS-10A=129kN thrust =29,000Ibs
Further modified WS-10A increase thrust= 151kN =34,000Ibs possibly for the J-XX maybe called the WS-10B???

The WS-10A had a 5,000Ibs increase from the original WS-10 now if you follow this trend the WS-10A with increase thrust would be 29,000Ibs + 5,000Ibs=34,000Ibs.

It is possible that the WS-10 was actually near completed but then the PLAAF rejected this due to its 107kN of thrust so the next phase was the increase thrust was 129kN for the WS-10A. Now this transition and modification in looking for a more higher thrust turbofan might have caused some trouble for the production of the J-10 . So to solve this gap the PLAAF seeked the AL-31FN as a gap filler before the WS-10A could be finished. So originally the current J-10's would've been powered by the weaker WS-10 but instead the PLAAF seeked for more power so the stop gap solution for the waiting WS-10A was the AL-31FN.

Now for something else their have been reports that the WS-10A engine was undergoing further modifications and upgrades most likely would be increased thrust and TVC. This sounds like a possible candidate engine for the J-XX aircraft that the PLAAF is trying to prepare for.

 

[tphuang]

a new J-11B cockpit photo?
the typical 1 HUD and 3 MFDs

 

[Jiang]

a new J-11B cockpit photo?
the typical 1 HUD and 3 MFDs
[qimg]http://img261.imageshack.us/img261/9073/j11bcockpit2kg.jpg[/qimg]

Tphuang, can you tell me the what if J11b engaging Mig-29ovt. What is the J11b's chance of wining???

 

[Deino]

Found at CDF posted by Pinko !!

a clear shot of J11B with PL-8 AAM, note the nozzle is NOT AL31F's

Cheers, Deino

 

[SteelBird]

Found at CDF posted by Pinko !!




Cheers, Deino


[qimg]http://centurychina.com/plaboard/uploads/J-11B_best_%2B_PL-8.jpg[/qimg]

I notice the two nozzles look different to each other. Could it be a testbed that had one AL-31's and one WS-10's?

 

[Totoro]

I don't wanna say it's not ws10a but length wise, nozzles are more-or-less similar, i measured them in photoshop. Coloring is a bitt different, true,

 

[crobato]

From the CDF, showing optical or thermal missile warning system.

 

[Kilo636]

I don't wanna say it's not ws10a but length wise, nozzles are more-or-less similar, i measured them in photoshop. Coloring is a bitt different, true,

Clearly the 2 engines on the J-11B of the pic are WS-10A. WS-10A nozzle is much shorter than AL-31F and is not difficult to distinguish between 2 of them .