What should a pilot expect when cleared for the RNAV approach at RWY 28 over APE VORTAC?

When a pilot is cleared for the RNAV approach at RWY 28 over APE VORTAC, they should anticipate specific altitudes and waypoints along the approach path. The correct answer indicates that the pilot can descend after reaching the waypoint FAIRF while continuing on a straight-in path to the runway.

This approach method is standard for RNAV (Area Navigation) procedures, where the acronym "RNAV" implies that the aircraft will navigate based on specified waypoints rather than solely relying on traditional ground-based navigational aids. In this scenario, FAIRF is a critical waypoint that is part of the approach procedure. Properly managing altitude until reaching FAIRF allows the pilot to align the aircraft with the approach profile before descending to the final altitude for landing.

This method of descending after reaching a waypoint ensures that the aircraft follows the appropriate glide path and remains within the airspace structure to maintain safety and efficient traffic flow. Understanding the need to wait until the waypoint to begin descent is crucial for a successful and safe landing during RNAV approaches.