Plain English Meaning
A curved leg of a flight path where the aircraft flies along an arc of a set distance from a center point, ending at a specific waypoint. Instead of flying straight between points, the aircraft follows a precisely shaped curve.
Full Definition
A type of RNAV path segment defined as a curved track of fixed radius between two waypoints, centered on a defined turn center. The aircraft flies a precise arc of a specified radius to the terminating fix, allowing repeatable, predictable curved flight paths in RNAV departure, arrival, and approach procedures.