This page no longer updated from 31 October 2001. Latest version can be found at UR-500MK-2

Gross Mass: 161,000 kg. Empty Mass: 11,000 kg. Thrust (vac): 190,000 kgf. Isp: 346 sec. Burn time: 270 sec. Propellants: Lox/Kerosene Isp(sl): 246 sec. Diameter: 4.2 m. Span: 4.2 m. Length: 20.0 m. Country: USSR. No Engines: 1. RD-43 Status: Design 1975. Comments: Empty mass estimated based on overall vehicle mass fraction. Length estimated based on total mass.
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Last update 12 March 2001.
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© Mark Wade, 2001 .