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UR-200-1
N2O4/UDMH propellant rocket stage. TsNIIMash has 1:10 structural simulation model. Developed 1960-1965. Orevo has sectioned hardware. All data accurate except empty mass prorated between first and second stages.

AKA: 8K81 Stage 1. Status: Design 1962. Thrust: 2,235.00 kN (502,447 lbf). Gross mass: 107,500 kg (236,900 lb). Unfuelled mass: 6,600 kg (14,500 lb). Specific impulse: 311 s. Specific impulse sea level: 278 s. Burn time: 135 s. Height: 20.00 m (65.00 ft). Diameter: 3.00 m (9.80 ft). Span: 3.00 m (9.80 ft).



Country: Russia. Engines: RD-0203, RD-0204, RD-0208, RD-0209, RD-0202. Launch Vehicles: Initial UR-500, UR-200A. Propellants: N2O4/UDMH.

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