Engine manufacturer has sought several patents for open-fan designs in the past two years, even as it publicly commits to developing an updated GTF for next-generation single-aisle aircraft. i The ...

Safran has begun ground testing its Open Rotor concept engine, a fuel-efficient propfan design utilizing two counter-rotating, unshrouded fans. The Open Rotor aims to significantly reduce fuel ...

Pratt & Whitney continues to insist its engine offering for the next generation of single-aisle aircraft will be a traditional ducted fan engine, eschewing the open-fan design of its rival CFM ...

The Open Rotor engine and its evolution, the Open Fan, promise dramatically lower fuel consumption compared with evolutions of the ducted fan engine. The Open Rotor has counter-rotating fans, while ...

The headline figure attached to CFM International's RISE program is easy to understand; more than 20% lower fuel burn than today's best narrowbody engines would represent one of the largest efficiency ...

TOULOUSE, France (Reuters) -Airbus CEO Guillaume Faury said on Tuesday the planemaker's next single-aisle jet would be "evolutionary rather than revolutionary", but that this could include an ...

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 ...

More energy efficiency means four, rather than six, open rotor engines Airbus’ latest hydrogen airliner concept features four, rather than six, open rotor engines. Airbus on Tuesday unveiled the ...

Next narrow-body jet could include open-rotor engine, CEO says Faury defends delay in developing hydrogen-powered aircraft The head of the world's largest planemaker was speaking at the start of an ...