During 1969-1970, a team at Arizona State University developed and tested a system for helicopter emergency medical services (HEMS) within Arizona. The nine month flight program--known as the Air Medical Evacuation System or AMES--demonstrated the validity of using helicopters for evacuation of accident victims. During the demonstration project, the AMES program flew 1,185 hours and evacuated 225 persons in the course of 213 missions. Project personnel and aircraft also flew 613 non-medical missions, including manhunts, aircraft searches, patrol, and surveillance. In addition to the Executive Summary, the full final report and other documentation of the AMES project are available in the Archives.
Cockpit Voice Recorder (Source: National Air and Space Museum)