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. Maddox is the world’s ...

The wild idea may only be a patent for now, but the Japanese automaker has been refining the idea for some time. Subaru filed two patents for electric turbine engine systems for potential use in ...