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RD-57
Part of RD-54 Family
Lyulka LOx/LH2 rocket engine. N1 Block S (N-1M). Study 1965. One to have been used in N1 Block S. In fixed chamber version, 3 to 6 to have been used in N1 Block V-III. Engine system includes roll control thruster with 1.29 kN thrust.

AKA: 11D57;D-57. Status: Study 1965. Date: 1960-77. Thrust: 392.00 kN (88,125 lbf). Unfuelled mass: 840 kg (1,850 lb). Specific impulse: 457 s. Burn time: 800 s. Height: 3.66 m (12.00 ft). Diameter: 1.86 m (6.10 ft).

Engine: 840 kg (1,850 lb). Chamber Pressure: 111.00 bar. Area Ratio: 142.3. Thrust to Weight Ratio: 47.61. Oxidizer to Fuel Ratio: 5.8.



Country: Russia. Launch Vehicles: N-IFV-III, N-IFV-II-III, N-IMV-III, N-IMV-II-III, N-IUV-III, N1M, N1F-L3M. Propellants: Lox/LH2. Stages: N1 Block S, N1 Block V-III. Agency: Lyulka bureau. Bibliography: 331, 332, 89, 94.

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