Re: J-11BS with WS-10A engine afterbuner
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The pictures proved it !!
Honestly, the picture proves only one thing: this is a WS-10A-powered J-11BS ! Nothing more.
Everything else is based on additional observations and clonslusions drawn spiced up with a lot of guesswork.
YES, the WS-10 seems to be reliable enough to power the Flanker-fleet, YES, it seems as if it has a slightly highrer thrust thanthe AL-31F and YES it seems as seen by the J-15 prototype as if they are interchangable ... but we've hared also some weaknesses of the TH, its spool-up time may not be as fine as the AL-31, its reliability might not be up to the same level ... maybe, maybe, maybe.
Therefore from all images and information we have it is safe to say the J-20 uses a version of the AL-31FN and that's a fact based on the number and dimensions of the pedals, the inner AB-structure, even the noise, but surely not on a blue flame. That in fact is more related to external factors and if You look closely to F100/F110-versions in F-16 and F-15 You can nearly fine every colour.
That in fact does not excludes the possibility to test the TH on the J-20 ... but simply WHY !??? right now the main goal should be to sum up as many flight hours with one engine, to tweek out all issues ... and only THEN to test it with another powerplant and since they need to repeat these tests in anyway with the later WS-15 I can't see any reason to tripple these test with yet a third engine.
Just my two cents.
Deino