R-56 Polyblock Stage B

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Model: R-56 Polyblock Stage B. Gross Mass: 55,500 kg (122,300 lb). Empty Mass: 5,000 kg (11,000 lb). Thrust (vac): 784.000 kN (176,250 lbf). Isp: 330 sec. Burn time: 205 sec. Propellants: Nitric acid/Kerosene. Diameter: 4.00 m (13.10 ft). Span: 4.00 m (13.10 ft). Length: 10.00 m (32.00 ft). Country: Ukraine. No Engines: 1. Motor: R-56 Blok B. Used on Launch Vehicles: R-56. Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2008 except where otherwise noted.