Advanced Avionics Practice Test

This GPWS mode is aimed at the takeoff and go-around phase, where you should be establishing a positive climb. It watches the airplane’s altitude after liftoff or after you initiate a go-around, and if the aircraft shows an altitude loss or fails to gain height as expected, a warning is issued. This targeted monitoring helps ensure you don’t end up in a descent during a critical phase when you should be climbing away from the ground.

In practice, you’ll get alerted specifically when altitude is lost after takeoff or during a go-around, which distinguishes this mode from warnings about excessive descent rates on approach or terrain proximity alerts during other phases. The focus is on confirming a successful climb after liftoff rather than on descent behavior or terrain closeness during other flight phases.