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GR-1 Stage 3
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Gross Mass: 8,500 kg (18,700 lb). Empty Mass: 1,000 kg (2,200 lb). Thrust (vac): 66.600 kN (14,972 lbf). Isp: 350 sec. Burn time: 380 sec. Propellants: Lox/Kerosene. Isp(sl): 0 sec. Diameter: 2.41 m (7.90 ft). Span: 2.41 m (7.90 ft). Length: 4.60 m (15.00 ft). Country: Russia. No Engines: 1. Engine: 8D726. Other designations: 8K513 Blok V. Masses estimated based on total vehicle mass of 117 tonnes. This stage was a close cousin of that developed for the Molniya launch vehicle.
Used on Launch Vehicles:
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© Mark Wade, 1997 - 2007 except where otherwise noted.
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