Henry Spencer wrote:
> On Fri, 27 Sep 2002, John Carmack wrote:
> > Kerosene works great. The residue problem is only an issue when you are
> > cooling with kerosene, which a peroxide biprop isn't.
>
> No, they're a more general problem than that. During testing, according
> to the Rotary/XCOR folk, it's not uncommon to get propellant A into the
> plumbing for propellant B by accident. XCOR uses isopropanol in its big
> engines because of bad memories of repeatedly scrubbing kerosene residues
> out of complex LOX plumbing.
That sounds more like a design/practice issue relating to keeping your
propellants separate. There should be no path for the kero into the
peroxide. John and his team have built and tested their design without
scrubbing any kero as far as I know.
Michael
----------------------------------------------------------------------
Michael Wallis KF6SPF (408) 396-9037 [EMAIL PROTECTED]
Jay Cuccia:
"When you lose your dream, you die."
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