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 refinement of the fighter jet seems to have happened at a blistering pace. The world's first operative fighter jet was Germany's Messerschmitt Me 262, which took to the skies during the latter ...