Propeller Speed

Aircraft Engine Controls - Propeller
... If the aircraft is equipped with adjustable-pitch or constant-speed propeller(s) Propeller Control - Used to set the desired propeller speed ... Once the pilot has set the desired propeller speed, the propeller governor maintains that propeller speed by adjusting the pitch of the propeller blades, using the engine's oil pressure to move a hydraulic piston in ...

Hawker Hurricane - Variants
... with fabric-covered wings, a wooden two-bladed, fixed-pitch propeller, powered by the 1,030 hp (768 kW) Rolls-Royce Merlin Mk II or III engines and armed ... I series built with a de Havilland or Rotol constant speed metal propeller, metal-covered wings, armour and other improvements ... This lowered the top speed of the Hurricane to 301 mph (484 km/h), but by this point mixed sweeps of Hurricanes protected by a fighter screen of Hurricanes were not uncommon ...