Bob Maddox once built the world’s largest pulse-jet engine and mounted it in a 1965 Jaguar. Star Wars audio engineers even recorded his pulse-jet engines for the movie Solo.

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.

If skydiving doesn’t quite do it for you, you could always strap a jet engine to your chest. That’s what Bob Maddox did until discretion got the better of him and he decided a jet-powered ...