The Automatic Ground Collision Avoidance System is designed to prevent controlled flight into terrain mishaps by executing an automatic recovery maneuver when terrain impact is imminent. The system continuously compares trajectory prediction, terrain profile and elevation data. The instant the predicted trajectory touches the terrain profile the automatic recovery is executed. The F-16 Auto GCAS is projected to save the U.S. Air Force 14 F-16 aircraft, 10 personnel, and $530 million over the future life of the F-16, according to Peterson. The system is expected to be fielded on all U.S. Air Force Block 40/42/50/52 F-16s by spring 2014, which totals approximately 640 aircraft. (U.S. Air Force graphic by Jet Fabara)