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Family: N. Country: Russia. Status: Development.
First large space launcher considered in the Soviet Union. It would have had the same layout as the R-7, but with six strap-ons increased in size by 50%. The core, igniting at altitude, used a nuclear thermal engine using ammonia as propellant. Dropped in favor of development of conventional chemical propulsion.
SpecificationsLEO Payload: 40,000 kg. to: 185 km Orbit. Liftoff Thrust: 1,266,770 kgf. Total Mass: 888,000 kg. Core Diameter: 3.3 m. Total Length: 44.0 m.
- Stage Number: 0. 6 x YaKhR-2 Strap-on Gross Mass: 110,000 kg. Empty Mass: 8,250 kg. Thrust (vac): 244,092 kgf. Isp: 311 sec. Burn time: 125 sec. Isp(sl): 269 sec. Diameter: 3.3 m. Span: 3.3 m. Length: 27.0 m. Propellants: Lox/Kerosene No Engines: 6. RD-111
- Stage Number: 1. 1 x YaKhR-2 Core Gross Mass: 180,000 kg. Empty Mass: 22,000 kg. Thrust (vac): 170,000 kgf. Isp: 470 sec. Burn time: 430 sec. Isp(sl): 430 sec. Diameter: 3.3 m. Span: 3.3 m. Length: 37.0 m. Propellants: Nuclear/Ammonia No Engines: 1. YaRD OKB-456
Bibliography:- 89 - Semenov, Yu. P., S P Korolev Space Corporation Energia, RKK Energia, 1994.
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Last update 12 March 2001.
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