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1 vote

In Apollo hardware, why were sump tanks needed?

This answer is almost 2 years on, and it's only conjecture on my part. That said, what I've read in numerous accounts of other systems leads me to think it worth suggesting the following. Re Sector 2 ...
Russell McMahon's user avatar
27 votes

Why do cryogenic fuels want an extra pressure tank?

Rocket fuels are pumped into the rocket engines. Pumping a liquid near or at its vapor pressure is a very good recipe for cavitation. Pumps don't like cavitation. They lose a great deal of efficiency ...
fraxinus's user avatar
  • 2,519
10 votes

Why do cryogenic fuels want an extra pressure tank?

It is true that warming cryogenic propellants will increase the gas pressure in the headspace. But this will take some time to achieve if left to sunlight or even if left to electrical heating. In ...
Slarty's user avatar
  • 9,720

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