What effect do trailing edge flaps have on the coefficient of lift?

Trailing edge flaps are designed to enhance the aerodynamic performance of an aircraft, particularly during phases of low-speed flight, such as takeoff and landing. When trailing edge flaps are deployed, they effectively alter the airflow over the wing, leading to an increase in the coefficient of lift for a given angle of attack.

This increase occurs because the flaps change the camber and surface area of the wing. By deflecting downward, trailing edge flaps increase the curvature of the wing, which allows it to generate more lift at lower speeds and angles of attack. The augmented lift characteristics help pilots maintain controlled flight at slower velocities, enhancing safety and performance during critical flight phases.

In contrast, the other options suggest that there is no increase in lift with flap deployment or that it could negatively affect lift, which does not reflect the fundamental principles of aerodynamics related to trailing edge flaps.