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Are Gel Propellants The Future?


Spacescifi

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On 9/11/2021 at 2:23 PM, Spacescifi said:

It's non reactive, inert with several things... barring LOX of course.

Hydrogen is a pain in the ass and all but unstorable - it goes THROUGH solid metal like a colander! -- and because of that pretty dangerous ...  It still gets used because its low atomic mass translates into high exhaust velocity.  Hence its use in upper stages where efficiency is king but there's no need to store it for longer than a few hours.

Edited by Corona688
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