World Journal of Engineering Research and Technology

Ahmed Soliman M. Sherif*

ABSTRACT

The Electrical Autopilot of the Aircraft works as follows: First, set the course, which should fly the plane. After this, the course gyroscope, whose axis is horizontal, is untwisted. If the aircraft deviates from the course as a result of external influence, the gyroscope retains its position in space and the sliders of the main potentiometer occupy a new position. Since the main potentiometer is connected to the potentiometer of feedback via the bridge circuit, in this circuit a voltage appears which is a misunderstanding. This signal is amplified by the MA and transmitted to the EA, then to the motor. The electric motor drives the steering wheel, which rotates in the desired direction. The sliders of the feedback potentiometer move with the rudder to a position where the mismatch becomes zero (the sliders of the feedback potentiometer occupy the same position as the sliders of the main potentiometer). The rudder stops rotating, and the aircraft, under the influence of the rudder, turns to the desired course. When turning the plane, the main gyroscope moves the sliders of the main potentiometer in the opposite direction. Again, a mismatch occurs, but the signal to the rudder in this case is reversed and the electric motor rotates the rudder in the opposite direction to the neutral position. When the plane returns to the course, the rudder will take a neutral position and the aircraft will continue to fly at the rate.

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