[AR] Re: Fw: Hydrogen / oxygen news
- From: Henry Spencer <henry@xxxxxxxxxxxxxxx>
- To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
- Date: Thu, 31 Oct 2013 15:51:49 -0400 (EDT)
On Thu, 31 Oct 2013, George Herbert wrote:
> > Given that you want high storage
> > pressures to get sizable amounts of gas into small tanks,
>
> Oh? This is an orbital module, and its RCS, not a launcher or stage...
> I would think low pressures and a large inflatable balloon would be nearly
> ideal; aluminized mylar?
Well, "nearly ideal" except for air drag, debris punctures, shadowing,
obstruction of star trackers and sensors, flexibility effects on
attitude control, etc. Launchers and stages are primarily propulsion
devices and can accept sacrifices to be better at it; RCS/OMS systems are
constrained not to interfere too much with other spacecraft subsystems.
Henry Spencer
henry@xxxxxxxxxxxxxxx
(hspencer@xxxxxxxxxxxxx)
(regexpguy@xxxxxxxxx)
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