Engines
FAA Certifies Hartzell’s First Electric Engine Propeller
Hartzell designed the propeller for Beta Technologies’ electric aircraft
Beta Technologies Alia CX300 with Hartzell propeller
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 250 eVTOL model.

Hartzell Propeller has become the first company to achieve FAA certification for a propeller designed specifically for advanced air mobility (AAM), the company announced on July 21. The Ohio-based manufacturer developed the propeller in collaboration with Beta Technologies and tested it exclusively on the latter’s electric aircraft to obtain FAA Part 35 type certification. 

According to Beta, the propeller has undergone thousands of hours of ground and flight testing on the Alia CX300 electric airplane over the past four years. Beta is also using the propeller for its Alia 250 eVTOL model. Although designed for Beta’s aircraft, Hartzell intends to make the propeller available to other manufacturers of AAM aircraft with similar electric propulsion systems.