Questions tagged [be4-engine]
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What materials can withstand corrosive oxygen-rich hot-gas environments inside rocket engines?
Russians figured out the metallurgy behind those super alloys since the N1 moon rocket era. Blue Origin is running its BE-4 engines on oxidizer-rich preburners and SpaceX’s full-flow Raptor engines ...
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votes
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How will the BE-4 engine “Save taxpayer money”?
In this explanation of the Blue Origin BE-4 engine, the text says:
LOWEST COST
Blue Origin’s BE-4 requires NO taxpayer dollars.
Fully funded
The BE-4 is fully paid for by the private ...
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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 ...
