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Apr 25, 2018 at 10:17 comment added Efialtes huh, i should check my sources cause i got false info sry.
Apr 24, 2018 at 22:13 comment added Keith Morrison SABRE uses liquid hydrogen in both modes: the difference is that it doesn't need to carry as much liquid oxygen because it uses atmospheric oxygen for part of the trip.
Apr 24, 2018 at 21:38 comment added Efialtes I'm saying that the SABRE when used in rocket engine mode burns liquid oxygen for propulsion, so wouldn't it act as fuel and oxidizer?
Apr 24, 2018 at 21:32 comment added AlexP @Efialtes: Oxygen is an oxidizer, not a fuel.
Apr 24, 2018 at 21:14 comment added Efialtes the sabre runs off of liquid oxygen as fuel in rocket mode... I'm not otally sure how the oxidizer aspect works, wouldn't it not need oxidizer?
Apr 24, 2018 at 21:05 history answered The Square-Cube Law CC BY-SA 3.0