pointSixtyFive

ALONG-TRACK DISTANCE (ATD)

Pilot/Controller Glossary with JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov

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.

Also called ATD.

In the 7110.65

Used in 7 paragraphs of JO 7110.65BB.

  1. 1-2-6Abbreviations
  2. 6-1-1Distance
  3. 6-2-1Minima on Diverging Courses
  4. 6-2-2Minima on Same Course
  5. 6-4-2Minima on Same, Converging, or Crossing Courses
  6. 6-4-4Separation by Pilots
  7. 6-4-5RNAV Aircraft Along VOR Airways/Routes