How do spoilers affect an aircraft’s lift?

Spoilers are aerodynamic devices located on the wings of an aircraft, and their primary function is to reduce lift. When deployed, spoilers disrupt the smooth airflow over the wing, leading to a decrease in lift produced by the wing. This reduction in lift is particularly useful during descent and landing, where pilots need to decrease altitude quickly without gaining excess speed. By opening the spoilers, the pilot can effectively control descent rates and maintain a manageable airspeed during landing approaches.

Understanding this function is crucial for pilots as it helps in managing aircraft performance and handling qualities during critical phases of flight. Spoilers also help in increasing drag, which further aids in slowing down the aircraft, making them an essential part of the flight control system.