All Questions
Tagged with cryogenics propulsion
4
questions
13
votes
1
answer
1k
views
Why did SpaceX swap the LOX and CH4 tanks between Mk1 and SN1?
According to most sources, the Starship Mk.1 had its LOX main tank (not talking about the header tanks here) on top and its main methane tank below. But it seems the SN1 revision, and all subsequent ...
5
votes
1
answer
287
views
What methods are proposed for storing cryogenic fuels (esp. hydrogen) in space for months or years?
Current Launch vehicles and upper stages must only keep their fuels for minutes or hours, so they are only insulated to keep boiloff to a few % per day - I've seen 21% per day quoted for Centaur on ...
5
votes
1
answer
471
views
Insulation used in the plumbing line of the actual rockets
While using the pipes for plumbing of the liquid propellants at pretty low temperature because of which ice form on the line if not insulated or poorly insulated, which can lead to liquid to gas ...
5
votes
1
answer
167
views
What temperature difference do the injectors in a cryo engine experience?
A quick follow-up to Does ISRO's Cryogenic Upper Stage have restart capability?
What temperature difference do the injectors in a cryo engine experience between the propellant tank, and the ...