13 ms·
https://en.wikipedia.org/wiki/Autogenous_pressurization https://en.wikipedia.org/wiki/Autogenous_pressurization
by perihelions 3y ago
https://en.wikipedia.org/wiki/Autogenous_pressurization https://en.wikipedia.org/wiki/Autogenous_pressurization
- mlyle 3y agoI wasn't saying there's no alternatives; indeed current ICBMs use very little helium. It's not just about pressurizing the liquid fuels for main engines. It's a purging gas; it can be used to pressurize RCS systems where other approaches are less practical; etc etc etc.
- deleted 3y ago[deleted]