New answers tagged design
1
If you're trying to preserve the stage dimensions of the Falcon 9, like if you want to maintain as much of the existing tooling as possible, then you definitely won't want a 9+1 Raptor configuration. Methane is substantially less dense than kerosene, so you'll get less propellant mass in a stage of the same size -- you'll end up with a very overpowered ...
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