YF-22/23

Designer: Beijing Wan Yuan Industry Corp. Propellants: N2O4/UDMH. Thrust(vac): 762.000 kN (171,304 lbf). Thrust(sl): 697.400 kN (156,782 lbf). Isp: 295 sec. Isp (sea level): 270 sec. Burn time: 127 sec. Diameter: 3.35 m (10.99 ft). Chambers: 1. Chamber Pressure: 71.00 bar. Area Ratio: 10.00. Country: China. Status: Out of production. First Flight: 1972. Last Flight: 1981. Flown: 12.

Cluster of YF-22 and 4 x YF-23 verniers.

YF-22/23 used on Rocket Stages

Used on stage: FB-1-2. on launch vehicle: CZ-2A.

Used on stage: FB-1-2. on launch vehicle: FB-1.

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