See a mistake? Contact us. A reader recently wrote to request an article on propellers: Why are “constant-speed” props called what they are, how can a fixed-pitch prop “lug” the engine and how does ...

Aircraft propellers are broadly divided into fixed-pitch, which offer a performance compromise between climb and cruise, and variable-pitch types, which can adjust blade angle. Variable-pitch ...

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 Propeller announced the launch of Kestrel, its lightweight carbon fiber constant-speed prop—the first entry in its new Falcon composite propeller series. The propellers are specifically ...

The two-blade, 80-inch diameter next-generation advanced structural composite Hartzell Trailblazer swept-tip prop can now replace Hartzell’s aluminum constant-speed propeller which comes standard on ...

It's fairly common knowledge that when a supersonic aircraft approaches the sound barrier, what follows is the sonic boom. This transitory period between subsonic and supersonic, known as transonic ...