| N1 Nuclear A |
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Model: N1 Nuclear A. Gross Mass: 700,000 kg (1,540,000 lb). Empty Mass: 250,000 kg (550,000 lb). Thrust (vac): 6,860.000 kN (1,542,180 lbf). Isp: 900 sec. Burn time: 570 sec. Propellants: Nuclear/LH2. Diameter: 12.00 m (39.00 ft). Span: 12.00 m (39.00 ft). Length: 90.00 m (295.00 ft). Country: Russia. No Engines: 40. Motor: YaRD Type A. Status: Study 1963. N1 nuclear upper stage study, 1963. Figures calculated based on given total stage thrust, specific impulse, engine mass. Model: N1 Nuclear AF. Gross Mass: 800,000 kg (1,760,000 lb). Empty Mass: 150,000 kg (330,000 lb). Thrust (vac): 7,840.000 kN (1,762,500 lbf). Isp: 810 sec. Burn time: 650 sec. Propellants: Nuclear/LH2. Diameter: 13.00 m (42.00 ft). Span: 13.00 m (42.00 ft). Length: 110.00 m (360.00 ft). Country: Russia. No Engines: 40. Motor: YaRD Type AF. 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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