The primary operational task of rescue is to locate, communicate with, and recover downed aircrews and isolated personnel. This primary task can be broken into three sub-tasks. Locating the aircrew or isolated personnel (survivor) by visual or electronic search methods to pinpoint the survivor’s location and permit recovery. Communicating with the survivor by radio or visual signaling to conduct authentication. Recover the survivor to return the survivor to friendly control and provide the survivor necessary medical assistance.