Definition
A chart symbol used on IFR enroute charts to mark a compulsory reporting point at an intersection. The arrowhead has small lines (feathers) extending from it, distinguishing it from a non-compulsory reporting point, which is shown as an open (unfeathered) arrowhead.
Plain English
A small symbol on instrument charts that looks like the head of an arrow with feathers. It marks a spot where the pilot is required to report their position to ATC when not under radar contact.
Context Anchor
Seen on IFR charts when identifying intersections along routes or procedures.
Derivation
Named for its visual appearance: an arrowhead shape with short lines (feathers) drawn at its base, mimicking the fletching on a real arrow. The 'feathered' version means compulsory; the unfeathered (open) version means non-compulsory.
Why Pilots Care
Allows precise identification of intersections without radar or GPS, supporting accurate position reports, course changes, and compliance with ATC clearances.
Intuition Check
“Feathered” does not mean feathering a propeller here. It describes the shape of the chart symbol, not an aircraft action.
Example Sentence 1
Crossing the intersection marked by a feathered arrowhead, the pilot called center to report position, altitude, and time.
Example Sentence 2
During the arrival briefing, the crew noted the feathered arrowhead symbol to mark the step-down fix for the approach.