Where do spoilers generally deploy on an aircraft?

Spoilers are aerodynamic surfaces primarily designed to disrupt the airflow over the wing to reduce lift and increase drag, which can be particularly useful during descent and landing phases of flight. They are typically located on the upper surface of the wings, which allows them to effectively perform their function by directly affecting the airflow as it passes over the wings.

Deploying spoilers over the wing assists in reducing lift during landing, helping the aircraft to descend at a controlled rate and making it easier to touch down on the runway. Additionally, they can improve roll control by increasing drag on one wing, which can aid in maneuvering during low-speed flight or on approach.

Spoilers are less commonly found under the wing, as those locations do not provide the same aerodynamic benefits. They do not deploy on the tail section since their primary purpose is related to lift management of the wings. Thus, locating spoilers on the upper surfaces of the wings is essential for optimizing their effectiveness in controlling the aircraft's lift and aiding in safe landings.