This page no longer updated from 31 October 2001. Latest version can be found at RD-8

Manufacturer Name: RD-8. Government Designation: 11D513. Designer: Yangel. Developed in: 1976-85. Application: Zenit stage 2 attitude control engine. Propellants: N2O4/UDMH Thrust(vac): 7,995 kgf. Thrust(vac): 78.40 kN. Isp: 342 sec. Burn time: 1,100 sec. Mass Engine: 380 kg. Diameter: 4.0 m. Length: 1.7 m. Chambers: 4. Chamber Pressure: 76.50 bar. Oxidizer to Fuel Ratio: 2.40. Country: Ukraine. Status: In Production. References: 348 , 357 . Comments: Development since 1976.
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Last update 12 March 2001.
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