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SuperDracos use hypergolic propellants, which can't be sourced on Mars. So SpaceX isn't using them on Starship. The HLS moon lander version will have small meth
by dark_star 5y ago
SuperDracos use hypergolic propellants, which can't be sourced on Mars. So SpaceX isn't using them on Starship. The HLS moon lander version will have small methalox hot gas thrusters to avoid kicking up a cloud of debris, but these aren't needed right now, eventually they'll be used in place of the nitrogen RCS thrusters.