French developer Beyond Aero has dropped the electric ducted fans seen on previous iterations of its BYA-1 hydrogen fuel cell ...

On March 12, 1947, the Douglas Cloudster II made its first flight, testing an unusual twin-engine design that drove a single ...

French startup Beyond Aero has completed the preliminary design review for its hydrogen-electric business aircraft, unveiling a revised configuration with pusher propellers replacing ducted fans.

Piaggio's Avanti twin-engine pusher-prop received Transport Canada clearance to operate in reduced vertical separation minimum (RVSM) airspace. "This opens the skies for Avanti operators in Canada and ...

Mind you, the X2 gets around retreating blade stall by putting an advancing blade and a retreating one on both sides of the aircraft – it runs a stacked coaxial pair of top rotors, rotating in ...