What is the role of the final approach fix?

The final approach fix (FAF) plays a crucial role in the precision of an approach to landing. It marks the last navigation checkpoint that pilots identify before beginning their descent onto the runway. Located on the approach course, the FAF is where pilots typically begin to configure their aircraft for landing, making it a critical waypoint that ensures they are on the correct flight path.

Understanding this point is significant for pilots, as it provides an essential reference for timing their descent and confirming they are aligned properly with the runway for a stable approach. The FAF establishes a definitive transition from cruising at altitude to the final phase of approach, facilitating calculations for descent rates and adjustments to airspeed as part of the landing sequence.

This context is vital for maintaining safety and efficiency during landing, ensuring that the aircraft is properly positioned in relation to the runway and that pilots are ready to execute the final steps necessary for a safe landing.