Originally it was gunna be the R29-300, they were working on copying one obtained from Egypt. I think they always planned to use either WS-10 or a suitable engine they could get. I don’t think. Tiananmen Square had much to do with it, I don’t think anyone in the west knew about the aircraft till the early 90s.And what you had the option for engine other than Russian one before the incident? None you had no suitable (INDIGENOUS) engine for early J10








