[Mariner]

The WS-10H has been pulled from the J-15 due to lack of performance and reliability issues just last year.

Their carrier jets fly infrequently and with 1/2 designed payload.

Compare that to the F-18 engine the GE F414.

The WS-10 is based on the Russian AL31, which for Russian engines was considered reliable. It’s late 80s tech.

And the Chinese can’t even get that right.

[Spktyr]

Um, the WS-10 is based on the Western CFM56...

https://en.wikipedia.org/wiki/Shenyang_WS-10

https://www.globalsecurity.org/military/world/china/ws10.htm

https://asianmilitaryreview.com/2020/03/china-makes-moves-on-j-10-turbofan-engines/

https://militarywatchmagazine.com/article/china-s-next-generation-j-10c-fighters-get-powerful-new-ws-10-engines