In a hydraulically controlled constant-speed propeller operating within its constant-speed range at a fixed throttle, what happens when the governor spring tension is reduced by movement of the cockpit propeller control?

In a hydraulically controlled constant-speed propeller operating within its constant-speed range at a fixed throttle, what happens when the governor spring tension is reduced by movement of the cockpit propeller control?

• A. The propeller blade angle will increase, engine manifold pressure will increase, and engine RPM will decrease
• B. The blade angle will decrease, manifold pressure decrease, RPM increase
• C. The blade angle remains the same, manifold pressure unchanged, RPM unchanged
• D. The blade angle increases and RPM increases

Answer: (A)