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

> Ah, now we are talking. Ideally of course , the source of propulsion would
> be a ratiometric thrust, so taht fuel could be conserved and metered. I
> happen to work with a dandy little pump that is positivepressure, positive
> displacement, and virtually pulseles, and can be driven by either steppers
> or servos, so that it is a precise metering pump. I have often thought
that
> a couple of these,  pumping kerosene and 60% peroxide, controlled by pics,
> could yield a small but highly intelligent vehicle capable of getting to
> 80,000 feet...
>
> The temptation is there. If I had a decent machine shop and a good vacuum
> system to do some thermo-molding...well... I probably would make one.  One
> could do the Goddard route and shift from inner tanks that could be
> jettisoned leaving the outer structural tanks for the high alt phase....
> Sigh... so much imagination, so little time.... with a gps and a small
> microwave xciever , one could have data, and video transfer. Probably
would
> need FAA / DOD clearance... but worth the try... Can you imagine what irt
> would sound /Look like leaving the pad....
>
> M
>
>
> At 04:05 PM 6/28/02 -0700, you wrote:
> >In my youth, I also was a model rocket enthusiast, and, I admit, I still
> >have leanings towards that path.  For instance, I really do need to get
> >around to building my really nice model rocket launch controller (PIC
> >controlled, of course).
> >
> >I keep thinking that I should go back to doing it a little, but I can't
find
> >the time...
> >
> >One thing that always bugged me when I was doing model rocketry was the
loss
> >of rockets.  Now that I know a bit more about electronics, I'm thinking
of
> >ceating a radio location device.  Which I'm sure will entail a PIC.  And,
> >maybe, a GPS ;)
> >
> >Now, I begin to wonder about the fesability of building multi-stage
cluster
> >rockets.  Like 3 engines per stage, 2 stages, engines fire in parallel,
use
> >a mercury switch to fire the second stage from a small Lead-Acid Gel
cell.
> >
> >I wonder if there's a model rocketry list out there....  I guess I'll
have
> >to find it when I find time ;)
> >
> >
> > > 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
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>
>

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.