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13 Cards in this Set
- Front
- Back
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What is the acronym to remember magnetic compass errors?
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VD MONA
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V?
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Variation
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Define: Variation
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Difference between Magnetic and True North
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D?
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Deviation
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Define: Deviation
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The electrical and magnetic fields in an aircraft that creat different heading, these are different for each heading and aircraft
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M?
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Magnetic Dip
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Define: Magnetic Dip
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the position of magnetic north relative to the aircraft, causing the compass to dip down to the shortest route to the pole.. Through the earth. The south side of the compass dial is weighted to compensate for this tendency
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O?
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Oscillation
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Define: Oscillation
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Vibrations from the aircraft
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N?
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Northernly turning errors
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Define: Northernly turning errors
Define: UNOS |
Turning from north indicates turn in the opposite direction. Turning from south indicates an accelerated turn in the correct direction.
UNOS, Undershoot North and Overshoot South |
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A?
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Accelerating Errors
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Define: Accelerating Errors
Define: ANDS |
accelerating or deccelerating will indicate either a turn to the north or south while on a east or west heading
ANDS = Acceleration causes a drift in compass to north Decceleration causes a drift in compass to south Accelerate north deccelerate south |
