The valveless pulsejet engine is one of the simplest known engines, consisting of just a hollow pipe with no moving parts.
Julius Perdana on MSN

Inside a WS15 engine kit build

Watch the WS15 turbofan engine model come together piece by piece. Explore the details behind this impressive J20 fighter jet engine kit. #ModelKit #JetEngine #Engineering ...
A jet engine with no moving parts. Sounds like something out of Dune. But a Baltimore start-up successfully flight-tested a scaled version to prove that the concept worked. Wave Engine Corp. released ...
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 ...