maozedong
Banned Idiot
China did confirmed that they are working single engine "F-35" type aircraft (J-18?).
it likely that J-20 was power by WS-10G,AL-31F and WS-10A lack the sufficient power.while tyhe russian 117S was still in late developing stage.
likely hood that aircratf being power by up rated Ws10A .
maybe China do have " J-18 " single engine mid size stealth fighter project, but its maiden flight will be after 2015, it may come with WS-15.
China have to make every effort to develop J-20 first.