Designed and manufactured in the United States by Rocketdyne (later Pratt & Whitney Rocketdyne and Aerojet Rocketdyne), the RS-25 burns cryogenic (very low temperature) liquid hydrogen and liquid oxygen propellants, with each engine …

2015年8月10日 · Learn everything you need to know about the RS-25 Engines that will help make SLS the most powerful rocket in the world.

2021年4月6日 · When NASA began scouting engines to power America’s next super heavy-lift rocket, the Space Launch System (SLS), the RS-25 offered an opportunity to forgo costs of developing a new engine, and the ability to leverage the assets, capabilities, and experience of the Space Shuttle Program.

2023年9月23日 · NASA’s Space Launch System (SLS), the most powerful rocket in the world, will be powered by RS-25 engines that combine proven performance with advanced engineering and technology. The SLS will launch astronauts on missions to the Moon and eventually to Mars.

Four RS-25 engines located at the bottom of the core stage power the rocket on its eight and a half minute climb to space with more than 2 million pounds of thrust. The RS-25 evolved from L3Harris’ Space Shuttle Main Engine (SSME) that successfully powered 135 flights of …

Engine Origin Designer Vehicle Status Use Propellant Power cycle Specific impulse (s) [a] Thrust (N) [a] Chamber pressure (bar) Mass (kg) Thrust: weight ratio [e] Oxidiser: fuel ratio

2023年10月22日 · NASA conducted the first hot fire of a new RS-25 test series on October 17, beginning the final round of certification testing ahead of production of an updated set of the engines for the SLS (Space Launch System) rocket. The engines will help power future Artemis missions to the Moon and beyond.

2022年11月10日 · 米国のビルダー「GG Retrofiz」が、YZF-R25／R3用のレトロ外装キットを発売中だ。 往年のロードレーサーを意識した曲面フォルムを巧みに再現している。

The Yamaha YZF-R25 is a motorcycle manufactured by Yamaha since 2014. It is Yamaha's first 250 cc sport motorcycle since the four-cylinder FZR250 that was sold between 1986 and 1994. A first for Yamaha twins, in common with the R3 , the R25 uses an offset cylinder design.

2013年9月13日 · Four RS-25 engines will power the core stage of the world’s most powerful rocket, NASA’s Space Launch System. Towering more than 200 feet tall with a diameter of 27.6 feet, the core stage will store cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle’s RS-25 engines.