[AR] Re: N2O avialability
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: Arocket List <arocket@xxxxxxxxxxxxx>
- Date: Sun, 18 Aug 2019 18:13:22 -0400 (EDT)
On Sat, 17 Aug 2019, George Herbert wrote:
And if you *need* some propellant in habitable space for manned vehicles
for some god forsaken reasons.
Don't forget needing it in habitable lab space for development work.
Almost everyone talking deep space seriously can handle hydrazine
decently safely...
But it costs you. The LLNL miniature-piston-pumps group, two or three
decades ago, started with hydrazine and switched to peroxide. Their
papers mentioned that development got dramatically easier and quicker when
things like vapor toxicity became non-issues, so small-scale development
testing could be done in the lab.
(You couldn't be *quite* so casual with nitrous, if only because nitrous
decomposition can sometimes form NO, which turns into NO2 on hitting air.
Still better than having all propellant handling be a hazardous
operation.)
Henry
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