The famous British Supermarine Spitfire used various propellers during its early service. Rotol Airscrews, Ltd was formed in 1937 as a joint venture of Rolls-Royce and Bristol. The name, a combination ...

Hartzell’s 5-blade composite propeller reduces aircraft weight by around 20 pounds total by using carbon fiber construction ...

Germany’s MT-Propeller has received US supplemental type certification for its MTV-27, 5-blade, constant-speed prop on the Texas Turbines Cessna 208/B Supervan. Introduced in 2008, the aircraft is a ...

For 50 years, Danish company Gori Propeller has been one of the foremost names in folding marine propellers used on sailboat auxiliary motor drives. These propellers fold into a streamlined form when ...

The agency is concerned that constant speed propellers such as this one may have been returned to service without having been properly overhauled. Courtesy McCauley Propellers The FAA last week warned ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is one of the propellers ...

Ship propellers are a constant compromise between efficiency, vibration, cavitation, and power delivery. This video explains why adding blades can solve serious mechanical problems, and why engineers ...

Curator Jeremy Kinney explores the contribution of Royal Air Force leader Desmond Cooke to the improvement of Supermarine Spitfires prior to the Battle of Britain. Jeremy Kinney 65 Squadron received ...

Hartzell Propeller has completed Supplemental Type Certificate testing to certify a three-blade propeller for the Piper Cherokee 235, on the path to FAA approval and STC issuance. The FAA Designated ...