What is the characteristics of the trailing edge of an airfoil?

The characteristics of the trailing edge of an airfoil are thinner and flatter. The trailing edge is designed this way to minimize drag and allow for smoother airflow over the surface of the wing. A thinner edge reduces wake turbulence, which is essential for enhancing the aerodynamic efficiency of the airfoil.

By maintaining a flatter profile, the airfoil can better manage the transition of airflow from the upper to the lower surface, helping to maintain laminar flow and reduce the chances of flow separation. This design feature is vital for optimizing lift and improving overall performance in flight. The trailing edge's configuration also plays a significant role in the control surfaces, like flaps and ailerons, which help to achieve desired maneuvers and responsiveness during flight.