waaaaaaa i just got lost in the designations.... maybe someone can shed some light on the matter ???
A good idea would be add some info about the plane along the designation (like "air-superiority" or "semi-stealthy multi-role").. here is what i found:
en.wikipedia.org/wiki/List_of_Chinese_aircraft
cnair.top81.cn/F-7_J-7_J-8.htm
cnair.top81.cn/J-10_J-11_FC-1.htm
I'm no expert but I'll try:
J-5=Mig 17
J-6=Mig 19
J-7=Mig 21
J-8=Twin engine fighter-Originally designed as an interceptor. Modified into a multi-role fighter in later versions.
J-9=Canceled single-engine fighter.
J-10=Single engine 4th-gen fighter-'Low' fighter, China's equivalent to the F-16C.
J-11=Originally canceled aircraft, designation reused for locally-made Su-27s-Air superiority fighter, China's F-15
J-12=Nanchang project, cancelled.
J-13=Shenyang project cancelled (though they could reuse the name)
J-14=??? (May not exist because of the bad luck associated with the number 4)
J-15=Carrier-based J-11B-China's Su-33 or F-18.
J-16=??? (Upgraded J-11BS/F-15E equivalent)-Strike Fighter, China's Su-30.
J-17=???
J-18=???
J-19=???
J-20=Twin engine stealth fighter, 5th generation. Multirole