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Manufacturer Name: RD-0204. Designer: Kosberg. Developed in: 1961-64. Application: UR-200 stage 1. Used on stages: UR-200 stage 1. Gross Mass: 1,961 kg. Empty Mass: 1,524 kg. Propellants: N2O4/UDMH Thrust(vac): 57,000 kgf. Thrust(vac): 559.00 kN. Isp: 311 sec. Isp (sea level): 278 sec. Burn time: 136 sec. Mass Engine: 381 kg. Diameter: 0.9 m. Length: 1.8 m. Chambers: 1. Area Ratio: 29.80. Oxidizer to Fuel Ratio: 2.60. Thrust to Weight Ratio: 149.50. Country: Russia. Status: Hardware. First Flight: 1964. References: 309 . Comments: Diameter is per chamber. Staged combustion cycle. Variant of RD-0203 with additional pressure sensor.
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Last update 12 March 2001.
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