During a left bank, what corrective action can counteract the left yaw caused by slipstream swirl?

During a left bank, the aircraft tends to experience left yaw as a result of slipstream swirl, which is caused by the propeller's rotation. This phenomenon creates a corkscrew effect as the airflow wraps around the fuselage and impacts the vertical stabilizer, resulting in a tendency for the aircraft to yaw to the left.

To counteract this left yaw, using right rudder is effective. The application of right rudder moves the aircraft's nose to the right, balancing the left tendency induced by the left yaw. This is essential for maintaining coordinated flight, particularly during turns, where precise control is paramount to avoid unintentional adverse yaw and to ensure the aircraft follows the intended flight path smoothly.

Other choices may not effectively address the issue of left yaw during a left bank. Increasing thrust could exacerbate the left yaw tendency by producing more slipstream and potentially increasing the leftward yawing motion. Using left rudder would intensify the left yaw instead of counteracting it. Decreasing the climb rate does not directly influence yaw and would only change the aircraft’s performance in a climb, which is not a solution for correcting the yaw caused by slipstream swirl.