This page no longer updated from 31 October 2001. Latest version can be found at UR-200 Stage 1

Gross Mass: 107,500 kg. Empty Mass: 6,600 kg. Thrust (vac): 228,000 kgf. Isp: 311 sec. Burn time: 135 sec. Propellants: N2O4/UDMH Isp(sl): 278 sec. Diameter: 3.0 m. Span: 3.0 m. Length: 20.0 m. Country: Russia. No Engines: 1. RD-0202 Status: Hardware. Other designations: 8K81 Stage 1. Comments: 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.
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Last update 12 March 2001.
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© Mark Wade, 2001 .