The governor in a constant-speed propeller is used to

The governor in a constant-speed propeller is used to

• A. Automatically change blade pitch to keep rpm constant
• B. Change Engine Oil Pressure
• C. Adjust Fuel Flow
• D. Control Propeller Diameter

Answer: (A)

A constant-speed propeller uses a governor to automatically adjust blade pitch so the engine speed stays at a chosen value. The governor watches the RPM and moves the pitch-changing mechanism to change the blade angle. If load on the propeller increases and RPM tends to drop, the governor reduces blade pitch (less angle) to decrease drag and let the engine speed back up. If load decreases and RPM tends to rise, the governor increases blade pitch (more angle) to add drag and bring the speed back down. This automatic pitch adjustment keeps the engine running at the most efficient and safe speed under varying flight conditions. Engine oil pressure, fuel flow, or changing the propeller diameter aren’t the primary functions of the governor in this system.

A constant-speed propeller uses a governor to automatically adjust blade pitch so the engine speed stays at a chosen value. The governor watches the RPM and moves the pitch-changing mechanism to change the blade angle. If load on the propeller increases and RPM tends to drop, the governor reduces blade pitch (less angle) to decrease drag and let the engine speed back up. If load decreases and RPM tends to rise, the governor increases blade pitch (more angle) to add drag and bring the speed back down. This automatic pitch adjustment keeps the engine running at the most efficient and safe speed under varying flight conditions. Engine oil pressure, fuel flow, or changing the propeller diameter aren’t the primary functions of the governor in this system.