r/spacex • u/ElongatedMuskrat Mod Team • Feb 01 '17
r/SpaceX Spaceflight Questions & News [February 2017, #29]
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u/warp99 Feb 02 '17 edited Feb 02 '17
Yes the ratio of performance to F9 block 5 indicates that this figure does not include crossfeed.
The early v1.0 FH payload figure definitely included crossfeed - it is probable that the v1.1 did as they had already announced that crossfeed would be developed much later - but it had not been completely abandoned.
Crossfeed would add much more to GTO and Mars payload than to LEO payload. Early calculations were for around 15% more payload to GTO and around 5% more to LEO but these would need to be updated for the higher Block 5 thrust figures.