I write about vertical flight aircraft technology & applications ... Later came variable-pitch propellers, where the angle of attack of the blades could be increased collectively to take a ...

Future electric aircraft will need to fly at relatively ... By adjusting a range of propeller parameters, such as pitch angle, chord length and number of blades, the team found a way to optimise ...

“Constant-speed, manually feathering propellers on multiengine aircraft are equipped ... to start the engine with the propeller blades at a low pitch blade angle,” NTSB said.

Dubbed the Maker, the aircraft is theoretically ... prop-rotors can also change their angle, affecting how much they bite into the air. “They’re variable pitch, so they can be really efficient ...

But recent evidence from the aircraft ... it and sent it to propeller expert Paul Gaither in Opa-Locka. Marauders used variable-pitch Curtis props; the pilot can change the angle, or pitch ...

Today's passenger aircraft ... Propeller Interface Unit (PIU) that houses the propeller governor, which fine-tunes the prop's rpm. It performs this function by utilizing oil pressure to change the ...

The company’s Cyclogyro, a reworking of a Voith-Schneider marine propeller for use in the ... the wings change pitch angle and create thrust, and since the hub can move 360° around the axis ...