Wankel rotary engine powered thousands of aircraft. One of several problems: It spewed castor oil on its pilots.

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 ...

MTU Aero Engines is convinced that the dynamics of the narrowbody market are likely to prevent an open-rotor design from being adopted on a future single-aisle due to the need to preserve customer ...

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 ...

As Airbus prepares to fly the open rotor engine concept on the A380, the company's CEO weighs the pros and cons of using the jet for future test flights.

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 ...

Airbus is really excited about an open-rotor engine. Boeing not so much. Here's why. Don't miss a single episode of the award-winning Check 6. Subscribe in Apple Podcasts, Spotify or wherever you ...

Wankel engines first saw use in production cars as early as 1964 — and not even in a Mazda, but rather in an NSU. That little single-rotor powerplant quickly evolved into the more typical two-rotor ...

A Wankel engine is a type of rotary engine, but not all rotary engines are Wankel engines. Wrapping your mind around this idea will help you to better understand the similarities as well as the ...

In a world dominated by pistons, the rotary engine was something different for motorists. It was the vision of German engineer Felix Wankel, built on the belief that the up-and-down motion of pistons ...

After years of rumors and experimentation behind closed doors, the Mazda rotary engine is officially back. The Vision X-Coupe, a plug-in hybrid concept showcased at the 2025 Japan Mobility Show, has ...