Dated 15 July 1971, this page outlines lost wingman procedures - the precise separation maneuvers a fighter pilot executed if visual or instrument contact with the flight leader was lost during climbs, turns, or final approach. Covering two-, three-, and four-ship formations, these procedures were critical safety protocols for F-4 Phantom squadrons flying dense formation and instrument approaches from Da Nang Air Base during the Vietnam War, preventing mid-air collisions when weather or workload separated a flight. Project: 218454