On Jul 9, 8:41*pm, peanutaxis
wrote:
Me;1216873 Wrote:

On Jul 5, 7:07*am, peanutaxis
wrote:-
They look like hoses or something. I mean I can understand that things
need to be attached, but do they really need to be attached until the
split second the rocket takes off?

--
peanutaxis-

Yes, they do
They carry propellants. If the shuttle were to delay or scrub, they
used to replenish or drain the propellants. *Dangerous hydrogen gas is
being vented off and that needs to be attached for the same reasons.

Some hoses carry conditioned air/nitrogen, others carry data and power.

Why is there hydrogen gas around. I thought it'd be all liquid and all
contained!

--
peanutaxi

The hydrogen is constantly boiling off and needs to be vented off