China has begun flight testing a high-bypass-ratio turbofan that is expected to greatly improve the performance of the Y-20 heavy airlifter and potentially power the C919 commercial aircraft. The engine is the 28,700-lb.-thrust WS-20, according to local media that have published photographs of it in the left inboard position of an inflight Ilyushin Il-76 testbed. WS-20 is apparently the military name of the powerplant that has also been called SF-A for civil purposes. It is a design of the ...


You must be a paid subscriber to access "Chinese High-Bypass Engine".


Current Aviation Week Intelligence Network (AWIN) enterprise and individual members: please go to for access.


Not currently a subscriber? Click on the "Learn More" button below to view subscription offers.

Already registered? here.