Ahhh... In my youth I was affiliated with Rocket Research Institute, the
youth oriented, basement bomber wing of Aerojet General. We designed and
built " Model " rockets. Six foot long tubes of steel filled with
Zinc-Sulfur fuel in little paper cartridges. One experiment, germane to
this slightly o.t. thread, was a steam rocket. This was a welded stainless
pressure chamber with a nozzle and burst plate. It was heated from the
outside by a number of furnace burners, inside a trashcan shield, fed with
natural gas from a tank.

At the burst pressure, it took off....flew about 1/3 mile if I recall. The
landing was, shall we say, abrupt. If one were to manage the system
differently, a pic would be perfect for pressure determination, and
couldlift pins out of a burst plate restrainer....hmmmm....

At 03:56 PM 6/28/02 -0500, you wrote:
>Well my thought was to fill the rocket nearly or completely with water, put
>it on the launch pad, get a very long ways away..., and then electrically
>heat the water and launch.  So there are lots of possibilities for PICs to
>control heating, safeties, etc.
>
>Doug Butler
>Sherpa Engineering
>
>
> > -----Original Message-----
> > From: pic microcontroller discussion list

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