Corrected orbital data for the Roadster: 0.99 x 1.71 AU x 1.1 deg C3 = 12.0, passes orbit of Mars Jul 2018, aphelion November
NASA's LSP performance calculator puts the maximum payload that FH w/ 1st stage recovery can lift to this orbit at 4000 kg.
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I suppose this is where the high ISP that hydrolox stages such as Centaur have tend to get an upper hand huh?
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Yeah, although quite a bit of performance was bleed off to recover the boosters/1st stage. In expendable mode FH can lift 9400 kg to the same orbit, beating the DIV-H (8150 kg), but when they land the 1st stage cores it barely lifts more than the Atlas V 531.
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Enough to launch Curiosity direct to Mars.
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If it's the same calculator I'm thinking of, it's based on the FH built from version F9 1.1 without the densified propellants. https://www.nasa.gov/sites/default/files/files/Creech_SLS_Deep_Space.pdf … The updated graph can be found from the SLS document above, but I don't see a calculator for FH recoverable with the new values
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For reference the upgraded F9 Block 3/4 can throw about 70% more to GTO compared to F9 1.1, so it wouldn't be a negligible difference.
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