From Canadian Power Wiki
The Shenyang J-11 (Chinese: 歼击机-11/歼-11; pinyin: Jianjiji-11/Jian-11) with NATO reporting name: Flanker B+ is a single-seat, twin-engine jet fighter based on the Soviet-designed Sukhoi Su-27 (NATO reporting name: Flanker) air superiority fighter and manufactured by the Shenyang Aircraft Corporation. The People's Liberation Army Air Force (PLAAF) of the People's Republic of China (PRC) is the sole operator of the aircraft.
The base J-11/A is a fourth-generation jet fighter which, like its Sukhoi brethren, is intended as a direct competitor to Western fourth generation fighters such as the F-15 Eagle and F-16 Fighting Falcon.
- J-11A: Chinese/Russian assembled Su-27SK from Russian-made kits. 104 were built. They were later upgraded with MAWS. Unconfirmed upgrades include improved cockpit displays, and fire control systems for R-77 or PL-10 missiles. It is also called J-11.
- J-11B: Indigenously-produced version using Chinese technology, and the first J-11 variant to use the WS-10A turbofan. The airframe is slightly lighter due to greater use of composites. It has new avionics, a glass cockpit, MAWS, and onboard oxygen generator system. Upgrading to AESA radar may have been planned.
- J-11BS: A twin-seat version of the J-11B. In 2012, the number of J-11B and J-11BS in service was over 120.
- J-11BH: Naval version of the J-11B. It was first sighted in May 2010.
- J-11BSH: Naval version of the J-11BS.
- J-11D: Variant with fixed electronically scanned array radar, IRST, and capability to fire heavier imaging/infrared (IIR) air-to-air missiles. The airframe makes greater use of composite materials, especially in the engine intakes for lower radar observability. The wings have three hardpoints each. Unconfirmed reports claim it has a new fly-by-wire control system, glass cockpit, improved EW systems, and an improved version of the WS-10A engine.
- People's Republic of China