UR-100N Stage 1N
Gross Mass: 77,150 kg (170,080 lb). Empty Mass: 5,695 kg (12,555 lb). Thrust (vac): 1,778.661 kN (399,859 lbf). Isp: 310 sec. Burn time: 121 sec. Propellants: N2O4/UDMH. Isp(sl): 285 sec. Diameter: 2.50 m (8.20 ft). Span: 2.50 m (8.20 ft). Length: 17.20 m (56.40 ft). Country: Russia. No Engines: 4. Engine: RD-0232. First Flight: 1972. Last Flight: 2006. No Launched: 315.


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