[sdiy] DIY rocketry

[harry]

So like... what do you guys blow up for fun around here...

(eschelon just kicks in... all synth-diy'ers get a free island
vacation.... no... not Hawaii....  )

H^) hary   (greetings from Alcatraz !!!)

Rob B wrote:

> I have been hearing that purified H202 is really cool and safe, save from
> the fact that you could at least physically blow yourself apart.. At least
> the pieces will stay uncharred iirc.. ;)
>
> h2o2 and a platinum mesh.. Hydrogen Peroxide... Mostly stable and safe
> compared to the *good* stuff like Unimetyhl Dihydrazine and Inhibited Red
> Fuming Nitric Acid..Since, if you can smell that stuff, you are usually
> already dead.  Leaves a hell of a mess too..
>
> Pressurized CO2 cartridges can be made into fun and relatively safe
> engines...I have heard that there are some liquid nitrogen engines being
> worked on too, for model jets and rockets..
>
> Ahh, the good ol days of working on a ballistics range, testing all things
> that go boom or whoosh.. hehe..
>
> Rob
>
> aim : cybrgzr0 <--last thing is a number
> ----- Original Message -----
> From: Paul Schreiber <synth1 at airmail.net>
> To: Ken Stone <sasami at blaze.net.au>
> Cc: synthDIY <synth-diy at dropmix.xs4all.nl>
> Sent: Saturday, September 29, 2001 6:34 PM
> Subject: [sdiy] DIY rocketry
>
> >
> > >
> > > >when I was 11yrs old, and nearly killed myself 3 times with Estes model
> > > >rockets.
> > >
> > > I wonder how many DIYers have NOT managed to nearly blow themselves up.
> I
> > > bet it's a minority. My friend put a home made rocket motor through his
> > leg.
> > > I was at a "safe" distance of about five feet away at the time.
> > >
> >
> > There was a big news article yesterday where a NASA engineer blew himself
> up
> > in his backyard
> > mixing fuel for a home-made chemical rocket.
> >
> > Rocketry is a classic case of "progressive danger syndrome" where each
> time,
> > you get crazier building a bigger,
> > more powerful one. Until common sense kicks in. I got scared with the
> > Centaur F-97 engines (shipped by
> > rail only) and decided I liked having 2 eyes and 10 fingers. I also shyed
> > away from high voltage and
> > carbon arc lights (my dad's personal favorites, with a meat loaf pan/salt
> > water rheostat. Trash can lid as
> > UV reflector).
> >
> > Around 1973 rocketry was at a peak, and potassium chlorate was cheap. I'm
> > surprised I'm still alive. You
> > haven't lived until you put 2 cups sugar, 1 cup KCLO4 in a paint can and
> > watch yellow flames shoot 30 ft
> > in the air, as the can melts, THEN the asphalt melts. Who called the damn
> > fire dept.??!?
> >
> > Paul S.
> >
> >
> >