To manage the rudders, pilots may operate foot pedals that are present in the cockpit. Generally, the rudder is placed on the vertical stabilizer or the tail fin. Furthermore, rudders also can be used during the instance of an engine failure for quad jets. Instead, the rudder ensures that the aircraft can overcome any adverse yaw that comes about as a result of turning. While allowing for the aircraft to yaw, the rudder is not relied on for directly steering the aircraft.

Moving the control backward, on the other hand, causes the opposite effect.ДЇor executing yaw movements, pilots rely on the rudder which allows the aircraft to adjust along its horizontal axis. When moving the control forward, the elevator will begin to deflect downward, causing lift to increase on the tail surface. Elevators may be controlled manually or through an autopilot system, the former being executed with the use of a control column or stick. By adjusting the elevator during flight, pilots can raise and lower the aircraft along its transverse axis. On the other hand, secondary flight control systems consist of spoilers, flaps, slats, and air brakes.Д®levators most often come in pairs, their placement being on the trailing edge of each fixed horizontal stabilizer half. For their types, primary control surfaces include ailerons, elevators, and the rudder. Secondary flight control surfaces, meanwhile, are in place to enhance the abilities of primary flight control surfaces as supplemental devices.

Primary flight surfaces are the most important of the two, regularly finding use during takeoff and landing operations. Flight control surfaces are adjustable areas of an aircraft, all of which are governed by the pilot in the cockpit for affecting speed, trajectory, or altitude.ДЇor modern aircraft, primary and secondary flight control surfaces are present, each serving their own roles in standard operations. While engines, wings, stabilizers, and other major aircraft parts are essential for flight, the finer maneuvering that enables increased flight management is made possible through the use of flight control surfaces. Aircraft operate on the principles of aerodynamics and flow, relying on the way in which air moves across their airfoil surfaces to maintain lift for flight.

What is control surface