Bob Maddox’s stage name, Crazy Rocketman, is a misnomer. Maddox doesn’t build rockets. He builds pulse-jet engines. There’s a difference. As for the crazy part—that may be true.

His no weld version of a pulse jet can be built in even the most minimalist work shop and is the epitome of an easy-to-build jet engine. To get an idea of how fast [Bruce]’s planes can be ...

[Colin] is a proponent of crazy hacks – we’ve featured him before for his land speed record holding baby carriage, and his pulse jet powered ... this particular engine build at home.