2 ms·

Either way it’s a huge number of launches

• avmich 3y ago
  But it's also a huge payload to surface, in one piece. As for proportionality, it's up to Starship Isp - which isn't hydrogen, but rather good in comparison with kerosene (well... some Russian vacuum kerosene engines are quite good by Isp...) - and construction mass ratio, which, usually favoring large stages, is rather good for Starship. So, for those 8-12 refueling launches you get payload on the surface of the Moon which dwarfs the one sent by Saturn-Vs, by an order of magnitude or quite likely more. And - important part - all of that is much cheaper, because the main thing being expended is fuel, not rocket stage hardware.