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RD-275
Part of RD-253 Family
Glushko N2O4/UDMH rocket engine. Proton stage 1. In Production. Uprated version of RD-253, developed in the 1980's. First flight 1986.

Status: In Production. Date: 1980's. Number: 438 . Thrust: 1,745.00 kN (392,291 lbf). Unfuelled mass: 1,280 kg (2,820 lb). Specific impulse: 317 s. Specific impulse sea level: 285 s. Burn time: 130 s. Height: 2.72 m (8.92 ft). Diameter: 1.50 m (4.90 ft).

Engine: 1,280 kg (2,820 lb). Chamber Pressure: 157.00 bar. Area Ratio: 26. Thrust to Weight Ratio: 139.06. Oxidizer to Fuel Ratio: 2.67.



Family: Storable liquid. Country: Russia. Propellants: N2O4/UDMH. Agency: Glushko bureau. Bibliography: 322, 98, 7520.

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