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Engine Model: YF-40. Designer: Beijing Wan Yuan. Propellants: N2O4/UDMH. Thrust(vac): 49.000 kN (11,015 lbf). Thrust(sl): 43.200 kN (9,712 lbf). Isp: 295 sec. Isp (sea level): 260 sec. Burn time: 135 sec. Diameter: 1.45 m (4.75 ft). Chambers: 1. Thrust to Weight Ratio: 0.00. Country: China. Status: Out of production. First Flight: 1988. Last Flight: 1990. Flown: 4.00.
YF-40 used on Rocket Stages
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