Plain English Meaning
Flying away from a radio beacon along a chosen line, keeping the aircraft on that line as it gets farther from the station.
Full Definition
In ADF (Automatic Direction Finder) navigation, to fly a desired course away from a non-directional beacon (NDB), keeping the aircraft aligned along a specific magnetic bearing measured from the station.
Context Anchor
Used when navigating with ADF, especially after passing a radio beacon and flying away from it on a published direction.
Derivation
Track' comes from Old French 'trac', meaning a path or trail left behind. 'Outbound' simply means heading outward — away from a point. Together, the phrase describes the path the aircraft leaves behind as it moves away from the station.