China's WS-10A turbofan engine for J-10B Vigorous Dragon fighter in mass production WS-10A engine (with gearbox at the bottom) is designed to power the J-10B Vigorous Dragon fighter. This version of the WS-10A turbofan engine is said to have 13.2 ton maximum thrust. There are several wrapped engines near the floor. ---------- Source: Zhuhai Air Show 2014 : WS-10 engine is now fully operational and matured. "Mr.Dong: This is wrong, WS-10's life is over 1500 hours, completely in accordance with the design requirements. 300 hours is the span between each regular maintenance."