Amateur rocketry is a hobby in which participants experiment with fuels and make their own rocket motors, launching a wide variety of types and sizes of rockets. Even the hobby is sound lame, amateur rocketeers have been responsible for significant research into hybrid rocket motors, and have built and flown a variety of solid, liquid, and hybrid propellant motors. While many of them have their own motto, many agree with the motto of “the failure is fun when the explosion is big enough”. Below are some photos of real work …