The S-IVB also continued to thrust at a very low stage by venting gaseous hydrogen, to maintain propellants settled inside their tanks and prevent gaseous cavities from forming in propellant feed lines. This venting also preserved Safe and sound pressures as liquid hydrogen boiled off within the gasoline tank. https://embeddedai98529.blogzag.com/77653216/the-best-side-of-apollo-mcu