Plain English Meaning
A coded segment of an RNAV procedure that tells the aircraft to fly from a starting point along a set heading or track for a specific distance, then end at that distance.
Full Definition
An RNAV path-and-terminator leg type that begins at a defined fix and continues along a specified track until a designated along-track distance is reached. The leg terminates when the aircraft has flown the prescribed distance from the originating fix, regardless of altitude or other conditions.
Context Anchor
Seen in instrument procedure coding and flight management system route logic, especially when studying path-and-terminator legs.