From: spike66 (spike66@attglobal.net)
Date: Wed Mar 06 2002 - 21:15:37 MST
Doug Jones wrote:
>>Sure, nitrogen would work, but one can carry a much larger quantity of
>>CO2 much more conveniently, precisely because it *is* a liquid under
>>pressure, and thus is much more dense. Halon is better than either N2
>>or CO2, of course, but CO2 is cheap.
>>
...And CO2 has a much higher ISP than N2, especially after you account
for the weight of the pressure vessel. Ive seen a system that uses a CO2
thruster with a hydrazine heater on the pressure vessel for high mass
flow rate. spike
>>
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