The documentary claim China from 3th gen engines to 5th gen engines... So where is the 4th gen?
I suspect the 4th gen engines(Hybrid of WS-10 and AL-31F tech combine) are now install onboard J-10b ,J-15 and J-20. Ermei 5th gen just certify and going to be install onboard J-20 to give it a more powerful supercruise.
China 4th gen engines shall be comparable to EJ-200 thrust to weight ratio.
I suspect the 4th gen engines(Hybrid of WS-10 and AL-31F tech combine) are now install onboard J-10b ,J-15 and J-20. Ermei 5th gen just certify and going to be install onboard J-20 to give it a more powerful supercruise.
China 4th gen engines shall be comparable to EJ-200 thrust to weight ratio.