Lewis sanding the hub on a propeller—Day 3 of the task—meant for a Lycoming engine. The business: Culver Props specializes in making custom, fixed-pitch, two-blade, wood propellers.

The hub hole doubles as the fastening point for ... It’s also the nature of pilots who seek the ideal fixed-pitch prop: one that takes off and climbs taking advantage of max horsepower, but ...

Barring the smallest manned airplanes, most aircraft that are pulled around by a prop have variable pitch propellers ... pulling power from coils in the rotor hub, and rectifying it to DC to ...