Aircraft propellers are broadly divided into two types: fixed-pitch, which offer a compromise between climb and cruise performance, and variable-pitch, which allow pilots to adjust blade angle for ...

On July 21, Hartzell Propeller (Piqua, Ohio, U.S.) announced that it has received Federal Aviation Administration (FAA) Part 35 type certification for its first composite propeller designed ...

Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a trade-off dilemma: the more energy-efficient an electric ...

Both versions of Beta’s Alia electric aircraft use Hartzell’s five-blade propeller for propulsion. Credit: Beta Technologies Hartzell Propeller has received the first FAA Part 35 type certification of ...

These strangely-shaped twisted-loop propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, ...

As part of Digital Propulsion (DigiProp), the National Composites Centre (NCC) has designed and manufactured a full-scale prototype of a propeller blade and its manufacturing system for turboprop ...