UR-700 / RO-31

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UR-700 / RO-31

Part of UR-700

UR-700 Profile
UR-700 Launch Profile. At lift-off, nine engines - six on the six outer stage 1 modules, and three on the three core modules - fired. During the stage 1 burn, the three engines of the core modules were fed by propellants in forward tanks of the outer six modules. Therefore the Stage 2 core burn started with full tanks in the core modules. Stage 3, a modification of the Proton first stage, placed the 151 tonne LK-700 spacecraft into a 200 km earth parking orbit.
Credit: © Mark Wade

Russian heavy-lift orbital launch vehicle. UR-700 with high energy upper stage consisting of 7 x RO-31 Nuclear A engines using LH2+Methane propellants with a total thrust of 280 metric tons. Usable third stage propellant 196 metric tons, payload increased to 230 to 250 metric tons

Status: Design 1968. Payload: 270,000 kg (590,000 lb). Thrust: 56,500.00 kN (12,701,700 lbf). Gross mass: 4,823,000 kg (10,632,000 lb). Height: 76.00 m (249.00 ft). Diameter: 17.60 m (57.70 ft). Apogee: 200 km (120 mi).

LEO Payload: 270,000 kg (590,000 lb) to a 200 km orbit at 51.00 degrees.

Family: heavy-lift, orbital launch vehicle. Country: Russia. Engines: RO-31. Agency: Chelomei bureau.

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