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8D43

Engine · Russia

Original archive entry. The text, images and links below are kept as they were written.

8D43 engine
8D43 engine
8D43 engine, originally intended as outboard gimballed engines for first stage of Proton UR-500 global rocket.
Credit: © Mark Wade

Kosberg N2O4/UDMH rocket engine. UR-500 stage 1 original concept. Hardware. In early Proton design would be clustered with 4 x Glushko 11D43. Abandoned in favor of 6 x Glushko 11D48, but later developed into the RD-0208 and RD-0210.

Low-expansion ratio gimbaled variant developed for UR-500. In initial configuration 4 would be clustered with 4 x Glushko 11D43. Abandoned in favor of 6 x Glushko 11D48. Further developed into the RD-0208 and RD-0210 engines.

Thrust (sl): 599.813 kN (134,843 lbf). Thrust (sl): 61,164 kgf. Chamber Pressure: 147.00 bar. Area Ratio: 28.5. Oxidizer to Fuel Ratio: 2.6.

Country
Russia
Propellants
N2O4/UDMH
Bibliography
273, 320