About apollo2

The S-IVB also ongoing to thrust at a reduced stage by venting gaseous hydrogen, to maintain propellants settled in their tanks and prevent gaseous cavities from forming in propellant feed traces. This venting also preserved Harmless pressures as liquid hydrogen boiled off within the gas tank. This venting thrust quickly exceeded aerodynamic drag.[

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Everything about ambiq apollo4

The S-IVB also continued to thrust at a very low level by venting gaseous hydrogen, to keep propellants settled within their tanks and stop gaseous cavities from forming in propellant feed strains. This venting also managed Secure pressures as liquid hydrogen boiled off from the fuel tank. This venting thrust very easily exceeded aerodynamic drag.[

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