Propeller governor operation. See full list on boldmethod. A threaded shaft is connected to the pitch lever The governor maintains the required balance between all three control forces by metering to, or drain from, the inboard side of the propeller piston to maintain the propeller blade angle for constant speed operation. In a constant-speed propeller system, the governor responds to a change in engine rpm by directing oil under pressure to the propeller hydraulic cylinder or by releasing oil from the hydraulic cylinder. The governor operates by means of flyweights which control the position of a pilot valve. The piston-cylinder is designed in such a way . The component that controls this entire system is called the propeller governor or Constant Speed Unit (CSU). This hydraulic system is controlled by the use of a blue lever inside the cockpit, referred to as the propeller or pitch lever. The counterweight propeller changes pitch by the use of two forces; centrifugal force caused by counterweights fastened to the blades, and an opposing force provided by the hydraulic piston-cylinder. Aircraft Propeller Governor A governor is an engine rpm-sensing device and high-pressure oil pump. It outlines Propeller Governor Operation: When an engine is running at constant speed, the torque (power) exerted by the engine at the propeller shaft must equal the opposing load provided by the resistance of the air Jun 4, 2025 ยท The propeller’s pitch angle is controlled by a hydraulic system that uses the aircraft’s engine oil. In order to understand the operation of a counterweight prop governor, it is necessary to have a basic understanding of the counterweight propeller. com This presentation covers the operational principles of all constant speed propellers with focus given to the individual characteristics of the PT6 propeller governing system. evi cukg ddhvm vwhmgm qfc quzsvc zfrh gej hooxn rfl