compass swinging

A procedure for calculating and correcting for the effects of an aircraft's magnetic field on its magnetic compass. The aircraft is taken to a designated area where, with all its services that are normally on during a flight, its deviation is measured on various headings and corrections are applied to the compass. A compass correction card is made if any residual deviation is still left. An aircraft is swung at periodic intervals, after a major component change, after a major servicing, or if it is relocated to a significantly different latitude. Maximum accuracy is achieved when the compass swing is done in flight. See also compass correction card and deviation card.

单词	compass swinging
释义	compass swinging compass swinging A procedure for calculating and correcting for the effects of an aircraft's magnetic field on its magnetic compass. The aircraft is taken to a designated area where, with all its services that are normally on during a flight, its deviation is measured on various headings and corrections are applied to the compass. A compass correction card is made if any residual deviation is still left. An aircraft is swung at periodic intervals, after a major component change, after a major servicing, or if it is relocated to a significantly different latitude. Maximum accuracy is achieved when the compass swing is done in flight. See also compass correction card and deviation card.
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