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'Rocket Engine 107') and its sibling, the RD-108, are a type of rocket engine used on the R-7 rocket family. RD-107 engines are used in each booster and the RD-108 is used in the central core. The engines have four main combustion chambers (each with a nozzle) and either two (RD-107) or four (RD-108) vernier chambers.
The RD-180 uses only two combustion chambers instead of the four of the RD-170. The RD-180 used on the Atlas V replaced the three engines used on early Atlas rockets with a single engine and achieved significant payload and performance gains.
Because a turbine expands from high to low pressure, there is no such thing as turbine surge or stall. The turbine needs fewer stages than the compressor, mainly because the higher inlet temperature reduces the deltaT/T (and thereby the pressure ratio) of the expansion process. The blades have more curvature and the gas stream velocities are ...
RD-93MA is a derivative of the RD-33 and is specifically designed for single engine light fighter jets. It uses the BARK-93MA automatic control system; Klimov VK-10M 22 to 24,200 lbf (97.87 - 107.647 kN) RD-35, agreement with Slovakian PSLM ZVL; RD-45; GTD-350; RD-500, copy of the Rolls-Royce Derwent V; TV2-117 (built by Isotov from 1959–1964 ...
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The RD-0109 is a rocket engine burning liquid oxygen and kerosene in a gas generator combustion cycle. It has single nozzle and is an evolution of the RD-0105 . It was the engine used on the Vostok Block-E that launched Yuri Gagarin to orbit.
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