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They performed an in-ship fuel transfer, from one chamber to another. My understanding is that this is a very important pre-requisite for an actual transfer fro
by enraged_camel 3y ago
They performed an in-ship fuel transfer, from one chamber to another. My understanding is that this is a very important pre-requisite for an actual transfer from one ship to another, because of the need to keep the fuel at cryogenic temperatures during the transfer, which is apparently not easy. Last time it was done was decades ago, but in kilograms. SpaceX just demoed a transfer of tons of fuel.
- extraduder_ire 3y agoBigger problem than keeping it cryogenic is getting it to one side of the tank while in orbit, so the pumps don't run "dry". Harder than just doing an ullage burn first too, because moving that amount of mass around also moves the vehicle.