RD-0203 (original) (raw)

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RD-0203

Part of RD-0202

RD-0203
Credit: KBKhA

Kosberg N2O4/UDMH rocket engine. UR-200 stage 1. Hardware. DU consisting of 4 RD-0204 gimbaled motors. Staged combustion cycle. First flight 1964.

AKA: 8D44. Status: Hardware. Date: 1961-64. Thrust: 559.00 kN (125,668 lbf). Gross mass: 1,961 kg (4,323 lb). Unfuelled mass: 1,525 kg (3,362 lb). Specific impulse: 311 s. Specific impulse sea level: 278 s. Burn time: 136 s. Height: 1.80 m (5.90 ft). Diameter: 0.89 m (2.91 ft).

Thrust (sl): 2,000.000 kN (449,600 lbf). Thrust (sl): 204,000 kgf. Engine: 381 kg (839 lb). Area Ratio: 29.81. Thrust to Weight Ratio: 149.5. Oxidizer to Fuel Ratio: 2.6.

Family: Storable liquid. Country: Russia. Propellants: N2O4/UDMH. Stages: UR-200-1. Agency: Kosberg bureau. Bibliography: 309, 7472.

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