This page no longer updated from 31 October 2001. Latest version can be found at UR-100N Stage 2N

Gross Mass: 12,195 kg. Empty Mass: 1,485 kg. Thrust (vac): 21,850 kgf. Isp: 322 sec. Burn time: 183 sec. Propellants: N2O4/UDMH Diameter: 2.5 m. Span: 2.5 m. Length: 3.9 m. Country: Russia. No Engines: 1. RD-0235 Status: Hardware. Comments: Engine has one main engine and four verniers. Verniers continue to burn for 19 seconds after mainstage shutoff.
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Last update 12 March 2001.
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© Mark Wade, 2001 .