Definition
In aviation, a control is any device or mechanism a pilot operates to direct, regulate, or change the state of the aircraft or one of its systems. Primary flight controls (ailerons, elevator, rudder) move the aircraft about its three axes; secondary controls (such as flaps, trim, and throttle) adjust performance, configuration, or power settings.
Plain English
A control is something the pilot moves, turns, pushes, or sets to make the aircraft do what they want -- whether that's banking, climbing, slowing down, or adjusting an engine setting.
Context Anchor
Seen in cockpit checks, aircraft handling, emergency procedures, and descriptions of aircraft systems.
Derivation
From the Old French contreroller, meaning 'to check or verify against a duplicate record.' The sense evolved into 'to regulate or direct.' In aviation it carries that same idea: the pilot regulates the aircraft's behavior through deliberate inputs.
Why Pilots Care
Proper control is essential for safe flight, preventing loss of control incidents which are a leading cause of accidents.
Intuition Check
Control does not always mean authority over another person. In aviation, it often means the ability or device used to direct an airplane, engine, or system.
Example Sentence 1
Before takeoff, the pilot performs a flight control check to make sure the ailerons, elevator, and rudder all move freely and correctly.
Example Sentence 2
Loss of control can occur if the pilot fails to coordinate the aileron and rudder properly.