How engine design has evolved to boost fuel efficiency, and where it's going from here.

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 development of a new turboelectric jet engine is set to transform air travel by enabling affordable supersonic flights, potentially cutting travel time from San Francisco to Tokyo to just three ...