A deeply modernized and ultimately unproduced derivative of the J-11 family. It was reported to feature greater use of composite materials, additional weapon stations, an active electronically scanned array (AESA) radar, an improved fly-by-wire flight-control system, and WS-10B engines. Prototype aircraft were built and flown, but the type did not enter serial production or service; some of its technologies are widely believed to have informed later programs.
