A touchy subject in aviation circles is the effect of jet engine noise on human nerves and bodies. Some of the airmen hate to mention it; they fear that people who live near jet bases will blame all ...

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 ...