Dated 15 July 1971, this weapons-effects table lists the minimum safe distances required between an ordnance impact point and friendly troops for the full range of munitions carried by F-4 Phantoms - general-purpose bombs, cluster bombs, napalm, rockets, and the 20mm cannon. Distinguishing between 'protected' and 'unprotected' friendly positions, this reference was essential for close air support missions flown from Da Nang Air Base during the Vietnam War, where fighter-bombers often struck targets in close proximity to allied ground forces. Project: 218454