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astronautix.com 11D423
Government Designation: 11D423. Designer: Izotov. Developed in: 1963-67. Application: LK-700S manned lunar spacecraft project ascent stage. Used on spacecraft: LK-700. Propellants: N2O4/UDMH Thrust(vac): 13,664 kgf. Thrust(vac): 134.00 kN. Isp: 326 sec. Country: Russia. Status: Developed 1963-67. References: 319 , 344 , 433 .

Krasniy Oktyabr Joint Stock Company, St. Petersburg, built for ascent stage of Chelomei LK-700S manned lunar project. Engines for UR-100 stage 2 and LK-700 probably identical; maybe had same designation. Gas generator cycle; 2 large turbine exhaust pipes. Other LK-700 drawings give engine designation as 15D13 with slightly different thrust.

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Last update 12 March 2001.
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