Deviation

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Deviation in aviation navigation refers to the error that is produced within a magnetic compass due to the presence of local magnetic fields within an aircraft. This error is typically different when measured on different headings. As aircrafts fly through different regions and conditions, they are exposed to various magnetic fields that can significantly affect the accuracy of the magnetic compass. Thus, it is essential for pilots to regularly calibrate their compasses to correct and compensate for the deviation error. Proper calibration of the compass enables pilots to navigate accurately and safely, especially when flying in challenging weather or other environmental conditions. Additionally, understanding and accounting for deviation error is crucial in conducting precise navigation and ensuring the safety of an aircraft during flight.