Along-Track Distance (ATD)
Along-Track Distance (ATD)
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31.Oct.2024
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SKYbrary Aviation Safety. (October 31, 2024). Along-Track Distance (ATD).
Retrieved June 4, 2026
from https://skybrary.aero/articles/along-track-distance-atd
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Definition
The horizontal distance between the aircraft's current position and a fix measured by an area navigation system that is not subject to slant-range errors. (As defined in the U.S. Federal Aviation Administration's Aeronautical Information Manual, Pilot/Controller Glossary.)
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