Dwight K. Elvey wrote:
Hi
I used to make saltpeter and sugar rockets when I was a kid.
To bad one can't get saltpeter anymore without signing your life away.
I used to have about a 75% successful launch rate. The others
would tend to clog the nozzle and blow up on the pad. I even
made a two stage that the second stage went out of sight. A
couple minutes later, I saw the smoke trail and recovered the
top stage. All great fun.
Dwight
Why not turn your rocket hobby into profit. The X-Prize has not been
clamed yet. :)
For the the NON rocket-scientist type here is the link.
http://www.xprize.org/
Ben.