This page no longer updated from 31 October 2001. Latest version can be found at RO-31

Designer: Kosberg. Application: UR-700 Third Stage. Used on stages: UR-700-RO-31. Used on launch vehicles: UR-700U. Propellants: Nuclear/LH2/Methane Thrust(vac): 40,000 kgf. Thrust(vac): 392.00 kN. Chambers: 1. Country: Russia. Status: Study 1967. References: 443 . Comments: Engine proposed for UR-700 third stage to achieve 250 tonne payload to low earth orbit. Probably closely related to RD-0411.
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Last update 12 March 2001.
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© Mark Wade, 2001 .