Commercial Spaceflight And The Dawning Age of NewSpace

ULA chief disavows his head engineer’s take on Vulcan engine competition |

WASHINGTON — United Launch Alliance sought to distance itself Wednesday from remarks its vice president of engineering made Tuesday implying the Denver-based rocket builder has all but decided to use Blue Origin’s BE-4 engine instead of Aerojet Rocketdyne’s AR1 to power its next-generation launcher.

“These ill-advised statements do not reflect ULA’s views or our relationship with our valuable suppliers,” ULA Chief Executive Tory Bruno said Wednesday via Twitter. “We welcome competition.”

Aerojet Rocketdyne supplies strap-on boosters for ULA’s Atlas 5, main-stage engines for the Delta 4, and upper-stage engines for both vehicles.

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