3 ms·

Several refueling is actually much cheaper than having it launched in a single piece because of the "rocket equation", google it. It is a good thing.

• tehbeard 4y ago
  downplaying the difficulties of on orbit refuelling. This isn't kerbal space program... Fluid's gonna fluid dynamics in a 0g environment...
  • cnlevy 4y ago
    Differential pressure + milli-g induced gravity using thrusters should help a lot. I bet it won't take more than 5 tries to do a full tank Starship transfer. And SpaceX iterates quickly
  • mlindner 4y ago
    > downplaying the difficulties of on orbit refuelling. Every single person I've heard say this hasn't given a reasonable reason why it's difficult other than "we've never done it before". Also on-orbit refueling has been done, just not with cryogenics. Additionally it's only been done in zero-G with bladders. A slight vehicle spin to settle tanks seems like it would be sufficient to feed some low speed pumps without bladders.