WS-15 is as the same class as F119, cannot imagine China is catching up so fast. Replying to: Problems encountered in development of new WS-15 engine -- Khan Post ReplyForum mike649 02/11/2018, 08:53:27 Author Profile | Edit Recommend | Alert | 5 4 3 2 1 0 -1 -2 -3 -4 -5 Where am IGo Up Go TopPost ReplyBack