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ULA Has Choices, Concerns About Possible RD-180 Replacements
October 01, 2014
TORONTO — United Launch Alliance (ULA) likely will continue to use the Russian-built RD-180 kerosene-fueled main-stage rocket engine for its U.S. Air Force missions at least into 2017, and it remains unclear what propulsion system it will use for its next-generation Atlas V after that, according to...
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