Definition
The actual paths an aircraft has flown over the ground, as distinct from the headings flown or the courses intended. A track represents where the aircraft has gone, measured as a line across the surface of the earth.
Plain English
The path the aircraft actually traces over the ground when you look down from above. Not the direction the nose is pointing, and not the route you planned -- the real line you left behind.
Context Anchor
Seen on instrument procedure charts and in descriptions of the path an aircraft should fly between named points.
Derivation
From the Old French 'trac', meaning a trail or footprint left behind. The aviation use keeps that exact sense: the trail the aircraft leaves over the ground as it moves.
Why Pilots Care
Maintaining the correct track ensures obstacle clearance, traffic separation, and accurate arrival at fixes during instrument procedures.
Grounding Statement
A crosswind can make the aircraft point one way while its track over the ground goes another way.
Intuition Check
Do not read tracks here as railroad tracks or tire marks. In instrument flying, tracks means the aircraft’s path over the ground or the published path it should follow.
Example Sentence 1
With a strong crosswind, the pilot held a heading 8 degrees into the wind to keep the aircraft's track aligned with the airway centerline.
Example Sentence 2
The pilot adjusted heading to maintain the required track over the mountainous terrain.