[bobs_salsa]

Outside of those mission requirements you mentioned there are also some limitations in any cryo cooled liquids onboard.

Either the pressure increases internally, liquid off-gases and needs to be refilled (where there is a finite amount left to use), or risk of components freezing up can all play a factor into how long a rocket can stand on the pad for. As a result it’s less a question of how often can they delay the launch and more a question of how long can the rocket stay out on the pad for you to delay into.

Likely a heep of other reasons as well.

[ragebol]

Ah, thought of boil-off already which can of course be replenished. But indeed the tank when that comes from can run out as well of course.