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The Shenyang J-11 is a twin-engine jet fighter of the People's Republic of China whose airframe is derived from the Soviet-designed Sukhoi Su-27. It is manufactured by the Shenyang Aircraft Corporation (SAC). The aircraft is operated by the People's Liberation Army Air Force (PLAAF) and the People's Liberation Army Naval Air Force (PLANAF).
Engine replacement
By 2004, the J-11 was being tested with the Shenyang WS-10.[14] Testing may have started as early as 2002; an image from the 2002 China International Aviation & Aerospace Exhibition allegedly depicted a J-11 with one engine replaced with a WS-10.[15] WS-10 development proved difficult. One regiment converted to WS-10-powered J-11Bs in 2007, but was grounded for an extended period due to poor operational reliability.[16] The WS-10A reportedly matured enough after 2009 to power the J-11B Block 02 aircraft,[17] and Jane's reported the J-11B as powered by the WS-10 in 2014. Learn More