/sci/ - Science & Math

>>12701107
I said I suspect the choking and sputtering was because the fuel-rich preburner got fucked up. My theory goes like this:
>Starship SN9 cuts flaps to reorient for landing burn
>Temporary sloshing in CH4 header tank (the one between the two main tanks) sends a bubble through the downcomer
>Bubble mainly goes into only one engine, either highly damaging the inducer/impeller or the turbine on the fuel-rich preburner
>With a fucked up preburner that can no longer deliver high pressure fuel to the main chamber, Raptor begins to sputter and starve
>no useful thrust is produced
>here comes the concrete