The Rolls-Royce UltraFan could be the powerplant of choice for next-generation aircraft.

The Boeing 777X has attracted attention not only for its folding wingtips but also for the immense power behind them. That power comes from the General Electric GE9X, an engine so large it could ...

For more than 70 years, scientists and engineers have been baffled by the thunderous roar of jet engines — a problem that has ...

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 ...