Definition
In a Flight Management System (FMS) or GPS navigator, the active waypoint is the specific waypoint the aircraft is currently navigating toward. It is the next point in the loaded flight plan that the system is using as its target, and all course, distance, and time-to-go calculations on the navigation display are referenced to it.
Plain English
The active waypoint is the place the navigation system is currently steering you toward. Out of all the points in your route, it is the one you are flying to right now.
Context Anchor
Seen on flight management system and GPS route pages, map displays, and navigation status lines during en route flight, arrivals, and instrument approaches.
Derivation
Active' here means 'currently in use' rather than 'energetic.' In navigation systems, only one waypoint at a time is being used as the steering target — that one is 'active,' while the others sit waiting in the flight plan.
Why Pilots Care
The active waypoint determines the current heading, estimated time of arrival, and fuel remaining on that leg; selecting the wrong one can lead to deviations or missed waypoints.
Analogy
It is like the next stop highlighted in a car navigation app. The full trip may contain many stops, but only one is the current target.
Intuition Check
“Active” does not just mean the waypoint is turned on or visible. It means this is the waypoint currently controlling the navigation guidance.
Example Sentence 1
After passing CYNDE, the FMS sequenced automatically and BIGBY became the active waypoint.
Example Sentence 2
The pilot checked the distance and time remaining to the active waypoint on the FMS screen.