KRD-442

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KRD-442

Isayev N2O4/UDMH rocket engine. Orbital propulsion for FGB-derived modules for Mir and ISS. In Production. Main and low-thrust mode. Operation of turbopump without chamber used to pump propellants into tanks from Progress tankers.

AKA: 11D442. Status: In Production. Date: 1972-77. Thrust: 4.38 kN (985 lbf). Unfuelled mass: 52 kg (114 lb). Height: 0.73 m (2.39 ft). Diameter: 0.46 m (1.50 ft).

Engine: 52 kg (114 lb). Thrust to Weight Ratio: 8.59.

Family: Storable liquid. Country: Russia. Spacecraft: Kvant, Kvant-2, Teknologia, Tellura, Skif-DM, Spektr, Priroda, ISS Zarya. Propellants: N2O4/UDMH. Agency: Isayev bureau. Bibliography: 309, 314, 342, 344.

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