Flight Controls

Flight controls allow pilots to control an aircraft's direction and attitude during flight. By moving specific control surfaces on the wings and tail, pilots can make the aircraft climb, descend, turn, and remain stable.

Modern aircraft use a combination of pilot inputs, hydraulic systems, and computers to control these movements safely and accurately.

What Are Flight Controls?

Flight controls are the systems that allow a pilot to maneuver an aircraft.

When a pilot moves the controls in the cockpit, the aircraft's control surfaces move accordingly, changing the airflow around the aircraft and altering its movement.

These systems are essential for safe and controlled flight.

Primary Flight Controls

Aircraft use three primary control surfaces:

Ailerons

Located on the outer trailing edges of the wings.

Ailerons control roll, causing the aircraft to tilt left or right. This movement is used when turning.

Elevators

Located on the horizontal stabilizer at the tail.

Elevators control pitch, raising or lowering the aircraft's nose. This allows the aircraft to climb or descend.

Rudder

Located on the vertical stabilizer.

The rudder controls yaw, moving the nose left or right. It is mainly used for coordination during turns and crosswind landings.

Secondary Flight Controls

Secondary flight controls help improve performance during specific phases of flight.

Flaps

Flaps extend from the wings to increase lift and drag.

They are mainly used during takeoff and landing when aircraft fly at lower speeds.

Slats

Slats extend from the front edge of the wing.

They improve airflow over the wing and help generate additional lift at slower speeds.

Spoilers

Spoilers are panels on top of the wings.

They reduce lift and increase drag, helping aircraft descend, slow down, and stop after landing.

How Pilots Control the Aircraft

In most aircraft, pilots use a control yoke, control stick, or sidestick to command movements.

These inputs are sent through mechanical, hydraulic, or electronic systems that move the control surfaces.

Modern airliners often use computers to assist with this process, improving precision and safety.

Stability and Control

Aircraft are designed to remain stable in flight. Flight control systems allow pilots to make corrections while helping the aircraft maintain predictable handling characteristics.

This balance between stability and maneuverability is essential for safe operation.

Why Flight Controls Matter

Flight controls are the link between the pilot and the aircraft. They allow precise control over the aircraft's movement and ensure that pilots can safely navigate through all phases of flight, from takeoff to landing.