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YF-22/23
Part of YF-20 Family
Beijing Wan Yuan N2O4/UDMH rocket engine. Out of production. Cluster of YF-22 and 4 x YF-23 verniers. Boosted CZ-2A, FB-1. First flight 1972.

Status: Out of production. Number: 12 . Thrust: 762.00 kN (171,304 lbf). Specific impulse: 295 s. Specific impulse sea level: 270 s. Burn time: 127 s. Diameter: 3.35 m (10.99 ft).

Thrust (sl): 697.400 kN (156,782 lbf). Thrust (sl): 71,115 kgf. Chamber Pressure: 71.00 bar. Area Ratio: 10.



Family: Storable liquid. Country: China. Launch Vehicles: Feng Bao 1, Chang Zheng 2. Propellants: N2O4/UDMH. Stages: FB-1-2. Agency: Beijing Wan Yuan.

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