flanker-L

A more extensively Chinese-developed derivative of the J-11/Su-27SK family with a high proportion of domestic subsystems, including avionics, fire-control equipment, cockpit displays, flight-control systems, and weapons integration. It is widely regarded as the major step from licensed production toward an indigenized "Flanker" variant in Chinese service. Early prototypes and some initial production aircraft used Russian AL-31 series engines, while later batches progressively adopted the WS-10 turbofan.

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