J-20 5th Generation Fighter VII

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Deino

Deino

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56860 said:
I don't see why there would be any reason to continue producing an inferior model once WS-15 enters service.
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Well --- these would mean about 2 years of production and several more units. Actually I don't think that they will stop production for 2 years until flight testing of the J-20A is done and start then again producing.
 
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hellodarknez

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56860 said:
I always felt it was reasonable to expect WS-15 to sit somewhere between F135 and F119 (purely in terms of thrust) considering advances in technology since F119 and continued improvements to WS-10. But these thrust numbers put WS-15 solidly in the F135 class. Maybe someone with better knowledge can correct me.
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I don't think they are directly comparable. And I think it's a common misunderstanding to say F135 is better than F119. F135 has a BPR of 0.57, while F119 is 0.3, of course it is easier for F135 to have larger Thrust and Thrust-to-weight ratio.
WS-15's BPR is only 0.25. WS-15 and F119 are more similar.

From my understanding. F35 doesn't have great Supercruise capability with F135 due to such a big BPR.
 
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