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Questions tagged [be4-engine]

Questions about Blue Origin's methalox engine that is to be used on the New Glenn and Vulcan launch vehicles.

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Why does the BE-4 use methane as fuel?

I understand the Mars ISRU reasoning for SpaceX's Raptor which is also going to be methalox based. But why would ULA, who is the prime customer for BE-4 besides Blue Origin itself, chose to support a ...
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