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・ RD-0124
・ RD-0146
・ RD-0210
・ RD-0214
・ RD-0216
・ RD-0233
・ RD-0236
・ RD-0237
・ RD-0243
・ RD-0410
・ RD-107
・ RD-117
・ RD-119
・ RD-120
・ RD-170
RD-180
・ RD-191
・ RD-214
・ RD-253
・ RD-263
・ RD-270
・ RD-58
・ RD-701
・ RD-8
・ RD-843
・ RD1
・ RDA
・ RDAC
・ RDAP
・ Rdate


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RD-180 : ウィキペディア英語版
RD-180

The RD-180 (РД-180, Ракетный Двигатель-180, Rocket Engine-180) is a rocket engine designed and built in Russia. It features a dual-combustion chamber, dual-nozzle design and is fueled by a kerosene/LOX mixture. Currently RD-180 engines are used for the first stage of the US Atlas V launch vehicle.
The RD-180 is derived from the RD-170/RD-171 line of rocket engines, which were used in the Soviet Energia launch vehicle, and are still in use in the Ukrainian/Russian Zenit launch vehicles.
==History==
The roots of the RD-180 rocket engine extend back into the Soviet Energia launch vehicle project. The RD-170, a four-chamber engine, was developed for use on the strap-on boosters for this vehicle, which ultimately was used to lift the Buran orbiter. This engine was scaled to a two-chamber version by combining the RD-170's combustion devices with 1/2 size turbomachinery. After successful performance in engine tests on a test stand, and high-level agreements between the US government and the Russian government, the engines were imported to the US for use on the Lockheed Martin Atlas III, with first flight in 2000. The engine is also used on the United Launch Alliance Atlas V, the successor to the Atlas III.
The engine has no direct connection to the NK-33, which was developed by a different bureau (Kuznetzov) nearly a decade earlier.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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