Boeing 747 Secondary Flight Control

BOEING 747-400
Secondary Flight Control Surfaces

Aircraft secondary flight control surfaces

In order for an aircraft to maneuver and maintain its stability, this required for aircraft to have control surfaces. Mainly, the aircraft are divided into two main control surfaces which are the primary flight control and the secondary flight control. The primary flight control is a basic control surfaces used to maneuver such as rolling, pitching and yawing. Meanwhile, secondary flight control surfaces are designed to augment stability, assist pilot control and ease the work-load.
Some of the aircraft does not necessarily to have the secondary flight control, but for a jumbo and high performance jet it is very crucial to have the secondary flight control surfaces. Secondary flight control surfaces are often works mechanically or via computer programming by sensing the correction have to make in order to maintain the aircraft stability.
Older aircraft does not have as many secondary flight control surfaces compared to the latest jet design. This is because, over the time the engineer working hard enough to increase the aircraft ability, performance and capability. Nowadays, all the latest aircraft design are fitted with sophisticated devices to increase its performance and reliability.

Boeing 747-400 Flight Control Surfaces

Boeing 747-400

This aircraft consists of primary flight control surfaces and secondary flight control surfaces. The primary flight control surfaces are aileron, elevator and rudder. This aircraft uses spoilers, trailing edge flaps, leading edge flaps, and an adjustable horizontal stabilizer for its secondary flight control surfaces.
Secondary Flight Control Surfaces

1. Wing Flaps
It is devices used to improve the lift characteristics and are mounted on the trailing edges of the wings. It also can be used to reduce the speed at which the aircraft can be safely flown and to increase the angle of descent