Bye Aerospace has begun the next phase of flight testing on its eFlyer 2 technology demonstrator, which the US company will use to select the most efficient propeller to maximise the performance of ...

Russian researchers are planning to test-fly a Yakovlev Yak-40 modified with a superconducting electric motor and propeller mounted on the trijet’s nose. The Moscow-based Central Institute of Aviation ...

Recently, Universal Hydrogen and Hartzell Propeller showed significant progress toward hydrogen fuel cell-powered flight. The two companies collaborated to alter a De Havilland Dash 8 testbed, ...

Controllable pitch propellers adjust blade angle instead of engine speed, letting ships change thrust, direction, and handling instantly. This explains the physics, advantages, and tradeoffs compared ...

MT-Propeller has flight tested an 11-bladed propeller on a Piper PA-31T Cheyenne twin turboprop. MT-Propeller said this 11-bladed prop produced a 15 percent increase in static thrust over a standard, ...