China’s J-20 Gets Another Upgrade

On June 29, a new J-20 prototype with the serial number 2052 made its first flight at Chengdu Aircraft Corporation in China, newly powered by two WS-15 turbofan engines. This event was a major milestone for the WS-15 engine, a carefully guarded project whose rumors and hints of development had been carefully followed for the last decade and a half – ever since rumors of the J-20 (then known only as J-XX) began in the mid to late 2000s.

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