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astronautix.com YF-40


Designer: Beijing Wan Yuan Industry Corp. Used on stages: CZ-4A-3. Used on launch vehicles: CZ-4A. Propellants: N2O4/UDMH Thrust(vac): 5,000 kgf. Thrust(vac): 49.00 kN. Isp: 295 sec. Isp (sea level): 260 sec. Burn time: 135 sec. Diameter: 1.5 m. Chambers: 1. Thrust to Weight Ratio: 0.00. Country: China. Status: In Production. First Flight: 1988. Last Flight: 1999. Flown: 6.
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Last update 12 March 2001.
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