UR-500 Monoblok Stage 1M
Gross Mass: 367,360 kg (809,890 lb). Empty Mass: 25,560 kg (56,350 lb). Thrust (vac): 8,989.700 kN (2,020,965 lbf). Isp: 310 sec. Burn time: 115 sec. Propellants: N2O4/UDMH. Isp(sl): 280 sec. Diameter: 6.20 m (20.30 ft). Span: 6.20 m (20.30 ft). Length: 30.00 m (98.00 ft). Country: USSR. No Engines: 4. Engine: 8D43 + 11D43. Status: Design 1962.

Original conventional 'Monoblock' design for Proton first stage.


Used on Launch Vehicles:  
 
 
 
 
 
 
 
 

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