This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com
Manufacturer Name: RD-57M. Government Designation: 11D57M. Designer: Lyulka. Developed in: 1960-74. Application: Vulkan Blok V. Used on stages: Vulkan Blok V. Used on launch vehicles: Vulkan. Propellants: Lox/LH2 Thrust(vac): 40,483 kgf. Thrust(vac): 397.00 kN. Isp: 461 sec. Mass Engine: 874 kg. Diameter: 2.0 m. Length: 4.1 m. Chambers: 1. Chamber Pressure: 115.00 bar. Area Ratio: 170.00. Oxidizer to Fuel Ratio: 6.20. Country: Russia. Status: Developed 1960-74. References: 89 , 94 , 331 . Comments: Version with extendible nozzle. Ref. Lyulka 94 has higher mass at 911 kg and higher fixed nozzle area ratio at 100. Length 4.06 / 2.61 m. Specific impulse 461 / 448 sec. Area ratio 170 / 87.6.
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Last update 12 March 2001.
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