Defense Watch: Vulcan Engines, New USCG Commandant, UAS Threat

Vulcan Engines. United Launch Alliance (ULA) said it has picked the Aerojet Rocketdyne RL10 to be the upper-stage engine of its new Vulcan Centaur medium- to heavy-lift rocket. In addition to supplying RL10s, Aerojet Rocketdyne has agreed to develop a new version…

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