What is the purpose of the trailing edge of a wing?

The trailing edge of a wing refers to the back part of the wing or airfoil. This is the section where numerous aerodynamic phenomena occur that are critical to the performance of the aircraft. As the aircraft moves through the air, the airflow first meets the leading edge and then travels along the surface of the wing, culminating at the trailing edge.

At the trailing edge, the airflow separates and combines, affecting both lift and drag. Understanding this concept is vital because the design and shape of the trailing edge can influence how efficiently the wing operates, contributing to lift and control of the aircraft. While other aspects of the wing are also important, the trailing edge specifically plays a crucial role in the overall aerodynamic properties and stability of flight.