In a left turn, how is correct control coordination indicated on the turn coordinator?

In a left turn, the correct control coordination is indicated by the ball of the turn coordinator being centered. The turn coordinator uses a liquid-filled tube and a small ball to show the aircraft’s coordination during turns. When the ball is centered, it signifies that the aircraft is in a coordinated turn, meaning that the lateral g-forces acting on the aircraft are appropriately balanced. In this case, the left turn is being executed with just the right amount of rudder input to counteract the adverse yaw that occurs during the turn, ensuring that the aircraft is not skidding or slipping.

If the ball were off to the right, it would indicate that the aircraft is in a skid, suggesting that there is too much rudder input or insufficient aileron input. Conversely, if the turn coordinator remained inactive, it would mean that the aircraft is not turning or the instrument is malfunctioning, which does not provide any information on control coordination. A miniature plane showing a right turn would also be incorrect during a left turn, as it does not accurately reflect the direction of the turn being performed. Thus, the correct interpretation of a centered ball indicates that the aircraft is properly coordinated in a left turn.