YF-20B

Designer: Beijing Wan Yuan Industry Corp. Propellants: N2O4/UDMH. Thrust(vac): 816.300 kN (183,512 lbf). Thrust(sl): 731.500 kN (164,448 lbf). Isp: 289 sec. Isp (sea level): 259 sec. Burn time: 170 sec. Diameter: 0.84 m (2.75 ft). Chambers: 1. Chamber Pressure: 71.00 bar. Area Ratio: 10.00. Thrust to Weight Ratio: 0.00. Country: China. Status: In production. First Flight: 1988. Last Flight: 2006. Flown: 236.

YF-20B used on Rocket Stages

Used on stage: CZ-2E(A)-0. on launch vehicle: CZ-2E(A).

Used on stage: CZ-2E-0. on launch vehicle: CZ-2E.

Used on stage: CZ-2E-0. on launch vehicle: CZ-2F.

Used on stage: CZ-2E-0. on launch vehicle: CZ-3B.

Used on stage: CZ-2E-0. on launch vehicle: CZ-3C.

Used on stage: CZ-2E-1. on launch vehicle: CZ-2E.

Used on stage: CZ-2E-1. on launch vehicle: CZ-2E(A).

Used on stage: CZ-2E-1. on launch vehicle: CZ-2F.

Used on stage: CZ-3A-1. on launch vehicle: CZ-3A.

Used on stage: CZ-3A-1. on launch vehicle: CZ-3B.

Used on stage: CZ-3A-1. on launch vehicle: CZ-3C.

Used on stage: CZ-4A-1. on launch vehicle: CZ-2D.

Used on stage: CZ-4A-1. on launch vehicle: CZ-4A.

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