Chengdu J-20

The Pentagon office awarded a $77 million contract on Aug. 4 to Advanced Technology International, Inc., a manufacturing prime to Sierra Technical Services.

China’s aerospace and defense industry noticeably still struggles to match or even approach U.S. and European mass production of fighter aircraft engines.

Imagery circulating on Chinese social media appears to show the Chengdu J-20 equipped with WS-15 engines in flight.

China's WS-10 and WS-15 turbofan engines are now in serial production following the finalization of material verifications.

A video of a twin-seat variant of the Chengdu J-20 “Mighty Dragon” stealth fighter has emerged on the internet, suggesting China has developed the world’s first