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 ...

A new study reveals how noise is generated and propagated from these engines, technically known as boundary layer ingesting (BLI) ducted fans. The mystery of how futuristic aircraft embedded engines, ...

One thing nearly all air taxi concepts share in common is fast-spinning propellers or ducted fans somewhere outside the aircraft's fuselage, pushing air to develop thrust whichever way they're pointed ...

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.