The nozzles and mixing chamber would have to be metal, but the body would
have to be lighter, as would the tanks..preferably lexan or something like
a carbon fiber composite, formed around a vac or blow molded liner.
properly shielded you could have the nozzle in front of the tanks to reduce
the shift in moment as the tanks emptied..., a la early Goddard. if
ceramics were  used for the shield, with a thin beryllium bronze cup as a
heat dump... you could probably keep things sane until the temperature
started to drop precipitously at about 40,000 feet, after which heat
dissipation is not a real problem. I also think that at some point it would
be cool to try and launch from a high flying balloon or aircraft, possibly
even an RC  craft.

Sigh.......

M




At 04:39 PM 6/28/02 -0700, you wrote:
>I take it that you'd want a precision molded model rocket...
>
>I just happen to know someone in the plastics industry.  Too bad the molds
>cost so much, or I'm sure I'd be able to get a cheap production run off.
>
>Why are the molded parts neccessary, exactly?  I bet we could get this off
>using the old style waxed paper system, so long as we had some ceramic blast
>cones and combustion chambers...
>
>I like this idea... Maybe next summer I'll even be able to get somewhere
>with it :)
>
>--Brendan

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