Tag: AR1 Twin Booster

  • Aerojet Rocketdyne touts AR1 engine for Atlas 5

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    STORY WRITTEN FOR CBS NEWS “SPACE PLACE” & USED WITH PERMISSION Aerojet Rocketdyne is pressing ahead with development of a powerful new rocket engine that company officials believe will be an attractive alternative to the Russian-built RD-180 engine that now powers the first stage of United Launch Alliance’s workhorse Atlas 5 booster. The AR1 engine, a proposed…