4 ms·
They're having no trouble starting the engines on the ground, for launch, like any normal rocket company. They're having some trouble restarting them on landin
by DennisP 6y ago
They're having no trouble starting the engines on the ground, for launch, like any normal rocket company.
They're having some trouble restarting them on landing, because getting the fuel to flow properly with that dramatic flip in the air is a bit of a challenge, which nobody else has ever attempted.
- HarryHirsch 6y agoEngine relighting in zero gravity is routinely done these days. All current upper stages do this.