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Blue Origin’s BE-4 Engine Passes Hot-Fire Test

By | October 20, 2017

      After more than five years of development, Blue Origin has successfully completed a hot-fire test of its liquid natural gas-powered BE-4 rocket engine. Blue Origin Chief Executive Officer (CEO) Jeff Bezos’ grand scheme is to use the engine on United Launch Alliance’s Vulcan rocket — so how will Aerojet Rocketdyne, which is also jockeying to equip the Vulcan, respond?

      Read more at Ars Technica.

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