What phenomenon does the gyroscopic effect refer to?

The gyroscopic effect specifically refers to the tendency of an aircraft to experience pitch or yaw changes when the orientation of the propeller changes. This phenomenon is significant in aviation because when the engine or propeller’s shaft is angled differently, it creates a gyroscopic moment that affects the aircraft's movement. For instance, when the thrust line changes during turns or maneuvers, the aircraft may pitch up or down depending on the direction of the propeller’s rotation. This effect can influence the pilot’s control inputs and overall handling characteristics of the aircraft, necessitating an awareness of gyroscopic forces during flight operations. Understanding this concept is crucial for pilots to maintain effective control of the aircraft during various phases of flight.