THE SMART TRICK OF AMBIQ APOLLO3 THAT NOBODY IS DISCUSSING

The S-IVB also ongoing to thrust in a low amount by venting gaseous hydrogen, to keep propellants settled within their tanks and stop gaseous cavities from forming in propellant feed traces. This venting also taken care of Secure pressures as liquid hydrogen boiled off within the gas tank. This venting thrust conveniently exceeded aerodynamic drag.