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German propulsion developer Schubeler Technologies has launched the eP05-21, an electric ducted fan specifically designed for manned and unmanned eVTOL aircraft in the Advanced Air Mobility (AAM) ...

The aerodynamic performance of ducted propulsion systems centres on the integration of a rotor or fan within a cylindrical or annular shroud to control airflow and improve efficiency. By enclosing the ...

On the runway to more fuel-efficient aircraft, one alternative propulsion scheme being explored is an array of electrically powered ducted fans. The fans are distributed across the wing span or ...

Whisper Aero, a Tennessee start-up, spent the last two years developing a propulsion system that it says is quieter and more efficient than any other. Now it has finally revealed part of its secret: ...

What was the issue and what impact did it have?

Small fans, all things considered, deliver thrust less efficiently than big ones. Lilium might have the best-looking aircraft in the eVTOL game, but it uses 36 tiny fans where competitors use six to ...

Nord Aviation’s N.500 Cadet was built around twin rotating ducted fans designed to shift from vertical lift to fast forward flight, promising a different approach to VTOL than helicopters. The project ...