During the landing roll, what must be maintained while applying crosswind aileron inputs?

Maintaining directional control during the landing roll is critical, especially in crosswind conditions. Applying crosswind aileron inputs helps to keep the aircraft level and aligned with the runway centerline, but this does not eliminate the need for rudder inputs. The rudder plays a vital role in counteracting the adverse yaw that can occur due to wing drag and ensuring the aircraft continues to travel straight down the runway.

If the rudder is not properly managed, the aircraft may veer off course, leading to potential loss of control. Thus, correct use of the rudder alongside aileron inputs ensures that the aircraft remains stable and does not drift sideways due to the wind or the differential wing loading caused by the ailerons. This coordination helps in achieving a safe and controlled landing, especially in challenging crosswind conditions.