China has unveiled a new type of air-breathing engine that could replace today’s turbine-ramjet ...

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

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 ...