Definition
The pilot's use of the control wheel or stick to deflect the ailerons, which are hinged surfaces on the trailing edge of each wing near the tip. Moving the control left or right raises the aileron on one wing and lowers the aileron on the other, producing a rolling motion of the airplane around its longitudinal axis (the line running from nose to tail).
Plain English
It is how the pilot rolls the airplane left or right by turning the control wheel or moving the stick sideways. This tilts the wings, which is the first step in making a turn.
Context Anchor
Seen when learning how the airplane responds to control wheel or stick movement, especially during turns and when keeping the wings level.
Derivation
Aileron comes from the French word for 'little wing.' The name fits because an aileron is a small movable wing-like surface attached to the main wing, and tilting it changes how much lift that part of the wing produces.
Why Pilots Care
Correct aileron control produces coordinated roll without introducing unwanted yaw, which is essential for safe turns and maneuvers.
Grounding Statement
When the pilot moves the wheel or stick left or right, the ailerons move in opposite directions so one wing tends to rise and the other tends to lower.
Intuition Check
Aileron control does not mean engine control or general airplane control. It specifically means controlling the airplane’s left-right tilt by moving the ailerons.
Example Sentence 1
The instructor demonstrated aileron control by rolling the airplane gently into a 20-degree bank to the left.
Example Sentence 2
During the flight check the instructor had the student demonstrate aileron control by rolling the wings smoothly from level to a twenty-degree bank.