What alternative term can be used to refer to the horizontal component of lift in a turn?

The horizontal component of lift in a turn is best referred to as centripetal force. When an aircraft makes a turn, the lift vector tilts, and the horizontal component of this lift vector acts toward the center of the turn, effectively pulling the aircraft inward along the curved flight path. This inward pull is crucial for maintaining a coordinated turn and preventing the aircraft from skidding or slipping outward.

Centripetal force is essential in circular motion, as it allows the aircraft to follow a curved path instead of continuing in a straight line. It is important to understand that this force is not a separate force acting on the aircraft; rather, it results from the aircraft's lift vector being tilted due to bank angle during a turn.

Other terms, such as centrifugal force, can often lead to confusion. Centrifugal force is perceived as an apparent force that seems to push objects outward when they are in a circular path, but in the context of physics, it is not a real force acting on the aircraft. Therefore, understanding the distinction and recognizing that centripetal force is what enables the aircraft to turn effectively provides clarity in this concept.