pezman wrote:N2O hybrid rockets seem to be in vogue and are reportedly very simple to build.
http://www.popularmechanics.com/automot ... page=3&c=y
I'm sure that would work well, but again you are dealing with fairly high pressure gas. That kind of increases the danger factor a bit. You would have to carry alot of N2O also, It would take alot less volume of H2O2 because it is already in its most dense state, and the higher oxygen content, also the hydrogen supplements the fuel. If I was going to build a liquid-fueled rocket engine I believe that I would use the fuel/H2O2, I think it is the best solution for an amatuer.
Hoy crap, I just went to that polular mechanics link. That's pretty darn impressive alright! Can you imagine going 0-60mph in 5 seconds on a mountain bike? hahaha, I may have to do this!!!!!!!!!!!!!!!! I haven't broken any bones in a few years, and I'm sure the nurses miss me. :)