Definition
A waypoint located at an airport, used in RNAV and GPS-based instrument procedures to define the airport's position as a point in the navigation system. The Airport Waypoint provides the latitude/longitude reference that the aircraft's navigation computer uses to identify the airport during approach, departure, or arrival procedures.
Plain English
It's the airport's position stored in the navigation system as a single point, so the aircraft's GPS or flight computer knows exactly where the airport sits.
Context Anchor
Seen in instrument procedures, navigation databases, and GPS or flight management system flight planning.
Derivation
Waypoint comes from 'way' (route or path) and 'point' (a specific location). An airport waypoint is simply a navigation point that marks the location of an airport, as opposed to other waypoint types that mark turns, fixes, or runway thresholds.
Why Pilots Care
Allows precise, direct navigation to an airport without depending on ground-based aids, simplifying instrument arrivals and improving safety in low-visibility conditions.
Intuition Check
Do not assume the Airport Waypoint is the runway or the exact touchdown spot. It is a stored point used by the navigation system to represent the airport.
Example Sentence 1
The flight management system sequenced to the airport waypoint as the aircraft crossed the missed approach point.
Example Sentence 2
ATC cleared the aircraft via the APT WP as the initial point for the RNAV arrival into the terminal area.