ABSTRACT
The Enhanced Ground Proximity Warning System (EGPWS)* is one of the newest systems becoming standard on all military and civilian aircraft. Its purpose is to help provide situational awareness to terrain and to provide predictive alerts for flight into terrain. This system has a long history of development and its various modes of operation and warning/advisory functionality reflect that history:
• Controlled Flight Into Terrain (CFIT) is the act of flying a perfectly operating aircraft into the ground, water, or a man-made obstruction. Historically, CFIT is the most common type of fatal accident in worldwide flying operations.
