YF-25/23

Designer: Beijing Wan Yuan Industry Corp. Propellants: N2O4/UDMH. Thrust(vac): 831.000 kN (186,816 lbf). Thrust(sl): 732.400 kN (164,650 lbf). Isp: 295 sec. Isp (sea level): 260 sec. Burn time: 295 sec. Diameter: 3.35 m (10.99 ft). Chambers: 1. Chamber Pressure: 71.00 bar. Area Ratio: 10.00. Country: China. Status: In production. First Flight: 1988. Last Flight: 2006. Flown: 32.

Cluster of YF-25 and 4 x YF-23 verniers.

YF-25/23 used on Rocket Stages

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

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

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

Used on stage: CZ-3A-2. on launch vehicle: CZ-3A.

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

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

Contact us with any corrections, additions, or comments.

Conditions for use of drawings, pictures, or other materials from this site..
To contact astronauts or cosmonauts.

© Mark Wade, 1997 - 2007 except where otherwise noted.

Encyclopedia Astronautica
topic index
0 - A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - Ra - Re - Sa - Sf - Sp - T - U - V - W - X - Y - Z