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Gross Mass: 2,000,000 kg (4,400,000 lb). Empty Mass: 650,000 kg (1,430,000 lb). Thrust (vac): 19,600.000 kN (4,406,200 lbf). Isp: 900 sec. Burn time: 600 sec. Propellants: Nuclear/LH2. Diameter: 17.00 m (55.00 ft). Span: 17.00 m (55.00 ft). Length: 130.00 m (420.00 ft). Country: Russia. No Engines: 20. Engine: YaRD Type V-B. Status: Study 1963. N1 nuclear upper stage study, 1963. Figures calculated based on given total stage thrust, specific impulse, engine mass.
Used on Launch Vehicles:
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