this upgrade j10 for paf nearly J10B
it's use WS10A
j10a is the top speed record holder in china (fast than J11 now)
j10a has got the maximal fly highest record holder in china
j10a supersonic speed manoeuvre agile is the best in china now
j10a subsonic speed manoeuvre agile is the best in china now
sorry my english still bad bad
