What are Spoilers?
These are plates located on top surface of each wing which can be extended upward into the airflow and disrupt or spoil it. When extended upward while the airplane is on the ground at high speeds, they reduce the wing’s lift and put more of the airplane’s weight on its wheels. Spoilers are raised when the weight of the airplane is on its landing gear, usually activated by a sensor. If raised on only one wing, they will aid in roll motion, reducing the lift on that wing.
