Airplane propellers are broadly categorized into fixed-pitch, which are simple and cost-effective but represent a performance compromise, and variable-pitch types that allow blade angle adjustment.

The propeller system is the earliest thrust generator designed for fully powered aircraft flight. Though they have evolved quite a bit since their first operation by the Wright brothers in 1903, ...

Hartzell Propellers worked with Beta Technologies to develop, test, and certify a five-bladed pusher propeller for advanced air mobility aircraft such as Beta’s Alia CX300 electric airplane and Alia ...