General

OUTER FIX ARC.

OUTER FIX ARC

- A semicircle, usually about a 50-70 mile radius from a meter fix, usually in high altitude, which is used by CTAS/ERAM to calculate outer fix times and determine appropriate sector meter list assignments for aircraft on an established arrival route that will traverse the arc.

Source

FAA Pilot/Controller Glossary →

Related — General.

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