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What is the artificial horizon called?
The attitude indicator (AI), formerly known as the gyro horizon or artificial horizon, is a flight instrument that informs the pilot of the aircraft orientation relative to Earth’s horizon, and gives an immediate indication of the smallest orientation change.
How does the artificial horizon work?
AIs, sometimes referred to as gyros or artificial horizons, operate with a gyroscope that indicates how level the aircraft is oriented to the earth. The gyroscope works by creating a rigidity in space while spinning and is placed to take into account the tilting of that instrument.
What error is subjected to the artificial horizon?
Acceleration Error in the Air Driven Artificial Horizon When an aircraft accelerates in a level attitude (e.g. take-off run) a false nose up, right wing down (climbing right hand turn) indication will result. The pitch error is due to the effect of acceleration on the lateral pendulous vanes.
What is directional gyro?
Directional gyros, also called heading indicators or direction indicators, are the fastest moving component in a piston-powered aircraft. It’s connected to a compass card, which moves with changes to the aircraft heading and displays the compass rose direction in 5-degree increments.
What do the wings on an artificial horizon mean?
Wings below the horizon bar indicates a decent. The upper blue part of the ball represents the sky. The miniature airplane wings (fixed to the case) represent the wings of the aircraft. In the past, the instrument has been referred to as “an artificial horizon”.
How is the rotor of an artificial horizon mounted?
The rotor, mounted in a sealed housing, spins in a horizontal plane about the vertical axis. The housing pivots about the lateral axis on a gimbal, which in turn is free to pivot about the longitudinal axis. The instrument case is the third gimbal necessary for universal mounting.
Where does the air come from for the artificial horizon?
Air is sucked through the filter, then through passages in the rear pivot and inner gimbal ring, then into the housing, where it is directed against the rotor vanes through two openings on opposite sides of the rotor.
What are the degrees of Bank on an artificial horizon?
The first 3 on both sides of centre are 10 degrees apart, then 60 degree bank marks, and 90 degree bank arks. Fifteen degrees of bank is called a standard rate turn. The adjustment knob is used to adjust the wings up or down to align with the horizon bar.