What are the rudders and what is their primary flight function?

• A. They primarily control yaw by roll input.
• B. Toe in to increase lift and improve stability. In flight two positions; They are not used for yaw.
• C. In flight commanded symmetrically to produce yaw.
• D. They are used only for ground stability.

Answer: (C)

Rudders are the vertical control surfaces at the tail that generate yaw, producing a turning moment about the aircraft’s vertical axis so the nose moves left or right. On the Growler’s twin vertical tails, deflecting both rudders in the same direction (symmetrically) creates a coordinated yaw moment that changes heading. This yaw control is the primary job of the rudders in flight, helping steer the airplane and keep turns coordinated. While roll is mainly controlled by the ailerons, rudder input can influence the aircraft’s rotation about the vertical axis and assist in handling, especially in adverse yaw or coordinated turns. They aren’t used only on the ground or for lift purposes, and toe-in is unrelated to in-flight rudder control.