How is the Final Approach Fix depicted for a full ILS approach with a glideslope?

The Final Approach Fix for a full Instrument Landing System (ILS) approach with a glideslope is depicted by a lightning bolt symbol. This symbol indicates the point at which the aircraft begins its final descent and aligns with the glideslope to ensure a proper descent angle for landing.

Understanding this depiction is critical for pilots and air traffic controllers because it marks an important phase in the approach procedure where altitude and glide path become crucial for a successful landing. The lightning bolt clearly distinguishes this point from other navigational aids and fixes, allowing for effective communication and situational awareness during the approach.

In contrast, other symbols represent different types of navigational fixes or procedures. The circle symbol typically represents a VFR waypoint or navigation aid but is not specific to the final approach fix in an ILS. The Maltese cross is used for non-precision approaches and is not associated with the glideslope. A dotted line is often used to indicate other navigational paths or procedures, but not specifically the Final Approach Fix for ILS.