This page no longer updated from 31 October 2001. Latest version can be found at N-11GR - V

Gross Mass: 8,200 kg. Empty Mass: 1,700 kg. Thrust (vac): 9,000 kgf. Isp: 346 sec. Burn time: 246 sec. Propellants: Lox/Kerosene Diameter: 2.4 m. Span: 2.4 m. Length: 5.0 m. Country: Russia. No Engines: 1. 8D726 Status: Design 1963. Comments: Orbital MIRV stage. Six of these stages clustered around Block B; each stage would have had a 1500 kg nuclear warhead.
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Last update 12 March 2001.
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© Mark Wade, 2001 .