FlightChops on MSN

Watch how constant speed props hold 2,700 RPM - "Automatic control"

Constant speed propellers were designed to keep engine RPM stable, often around 2,700 RPM, even as flight conditions changed. Instead of the pilot constantly adjusting power, the system automatically ...
insider.si.edu

Rotol Spitfire Propeller Blade, Constant-Speed, Wood and Metal

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 ...