To what position does centrifugal force acting on the counterweights move the blades of a constant-speed counterweight-type propeller?

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Study for the Aviation Institute of Maintenance Block 16 Exam. Enhance your knowledge with flashcards and multiple choice questions with hints and explanations. Achieve exam readiness and boost your chances of success!

Multiple Choice

To what position does centrifugal force acting on the counterweights move the blades of a constant-speed counterweight-type propeller?

Explanation:
The centrifugal force on the counterweights increases as engine speed rises, causing the weights to swing outward. This outward motion is linked to the blade-pitch mechanism, which moves the blades toward a higher angle relative to the plane of rotation. In other words, as rpm goes up, the blades move to a higher pitch (coarser pitch) to help keep the propeller from overspeed. At lower speeds, the force is smaller and the blades tend toward a lower pitch, with the governor balancing oil pressure to maintain the desired RPM.

The centrifugal force on the counterweights increases as engine speed rises, causing the weights to swing outward. This outward motion is linked to the blade-pitch mechanism, which moves the blades toward a higher angle relative to the plane of rotation. In other words, as rpm goes up, the blades move to a higher pitch (coarser pitch) to help keep the propeller from overspeed. At lower speeds, the force is smaller and the blades tend toward a lower pitch, with the governor balancing oil pressure to maintain the desired RPM.

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