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RD-270M
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Manufacturer Name: RD-270M. Government Designation: 8D420M. Designer: Glushko. Developed in: 1962-70. Propellants: N2O4/Pentaborane. Thrust(vac): 7,159.000 kN (1,609,407 lbf). Isp: 365 sec. Isp (sea level): 340 sec. Chambers: 1. Country: Russia. Status: Study 1962-1970. In 1962-1970 Glushko studied use of Pentaborane 'zip' propellants in his monster RD-270 engine. This would have created immense toxicity problems but increased the specific impulse of the engine by 42 seconds.
Bibliography and Further Reading - Vetrov, G S, S. P. Korolev i evo delo, Nauka, Moscow, 1998. ISBN: 5020036846. The collected papers of Soviet Chief Designer Korolev. A tremendous source of new information and insight on the Soviet space program. Russian language. More at amazon.com...
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