Mazda has never been scared to try something different, and its 1990s luxury coupe embodies this approach as well as any ...

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe of the late 1980s.

WASHINGTON (Reuters) -The head of European planemaker Airbus said novel open-rotor technology being tested by engine maker CFM International offers promising efficiencies and reductions in emissions ...

Airbus chief executive Guillaume Faury has made clear he expects the European airframer’s next narrowbody jet will be 25% more efficient than today’s models – and he is banking on CFM International’s ...

Wind-tunnel testing of multiple configurations of sub-scale blades for GE's Open Rotor engine is being conducted to identify the optimum blade design for the engine's two counterrotating stages of ...

A series of recent patent filings from Safran Aircraft Engines could hint at some of the innovations being contemplated for the RISE open-rotor engine the French firm is developing alongside GE ...

A German engineer, Felix Wankel, is credited with developing the world's first rotary engine in the 1950s. Wankel rotary engines use a triangular rotor spinning in a semi-oval case on an eccentric ...

Language is an imperfect medium, but it's what we've got, so let's go with it. Determining the swept volume of inventor Felix Wankel's rotary engine can generate more arguments than claiming what a GT ...