Definition
On a GPS instrument approach, the Missed Approach Waypoint (MAWP) is the specific point in the GPS navigation database that defines where the missed approach procedure begins. If the pilot has not seen the runway environment and decided to land by the time the aircraft reaches this waypoint, the missed approach must be initiated. The MAWP is normally located at or near the runway threshold and is sequenced automatically by the GPS receiver as part of the published approach.
Plain English
It's the point on a GPS approach where, if you can't land, you must start the go-around procedure.
Context Anchor
Seen on GPS instrument approaches, especially when following the final part of the approach toward the runway.
Derivation
Waypoint means a point along a route used for navigation. Missed approach is the aviation term for the required procedure flown when an instrument approach cannot be continued to landing. Together, Missed Approach Waypoint means the navigation point that marks where that decision and procedure begin.
Why Pilots Care
It establishes the precise point at which a safe climb and course change must begin, preventing descent below minimums without visual contact.
Intuition Check
MAWP does not mean a waypoint you failed to reach or accidentally missed. It means the waypoint where the missed approach procedure starts if landing cannot continue.
Example Sentence 1
The runway was still hidden in fog as we crossed the MAWP, so I called the missed approach and started the climb.
Example Sentence 2
The approach plate showed the MAWP 0.8 miles from the runway threshold on the RNAV procedure.