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Model: UR-100N MIRV Bus. Gross Mass: 1,100 kg (2,400 lb). Empty Mass: 725 kg (1,598 lb). Thrust (vac): 4.900 kN (1,102 lbf). Isp: 200 sec. Burn time: 150 sec. Propellants: N2O4/UDMH. Diameter: 2.50 m (8.20 ft). Span: 2.50 m (8.20 ft). Length: 0.50 m (1.64 ft). Country: Russia. No Engines: 1. Motor: RD-0237. Status: Active. First Flight: 1977. Last Flight: 2007. No Launched: 92.



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