Revolutionary engine prototype three decades in the making could replace combined turbine-ramjet systems in high-speed flight ...

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...

The 1967 NSU Ro 80 looked like it had driven in from the future, with a slippery body, a glassy, sparse cabin and a ...

China is developing a groundbreaking air-breathing engine, potentially powering next-generation fighter jets and hypersonic ...

Here's the process of making this rotary valve engine with a different intake and an exhaust system. It wasn't easy to start ...