This page no longer updated from 31 October 2001. Latest version can be found at YF-3

Designer: Beijing Wan Yuan Industry Corp. Used on stages: CZ-1D-2. Used on launch vehicles: CZ-1D. Propellants: N2O4/UDMH Thrust(vac): 29,980 kgf. Thrust(vac): 294.00 kN. Isp: 287 sec. Isp (sea level): 260 sec. Burn time: 120 sec. Diameter: 2.3 m. Chambers: 1. Thrust to Weight Ratio: 0.00. Country: China. Status: In Production. First Flight: 1995. Last Flight: 1995. Flown: 1.
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Last update 12 March 2001.
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© Mark Wade, 2001 .