J-11 = licenced Su-27SK ... J-11B further development with WS-10A and Chinese avionics
J-11BS = unlicenced Su-27UBK
J-15 = unlicenced Su-33 (carrier-borne fighter)
J-16 = twin-seater, striker, vased on Su-30MKK
J-11BS = unlicenced Su-27UBK
J-15 = unlicenced Su-33 (carrier-borne fighter)
J-16 = twin-seater, striker, vased on Su-30MKK