The M163 Vulcan was a full-tracked armored personnel carrier that had “great cross country mobility and a mounted turret with a 6-barrel M61 Vulcan Gatling cannon that fired 20-mm high explosive and armor piercing projectiles” (Laur and Llanso 195). The crew consisted of four to six members depending on combat situations. Rather than serving its main purpose to provide forward air defense against low flying aircraft, it provided security as a soldier foot patrol escort and perimeter defense on isolated fire support bases when at a standstill. The Vulcan was a great benefit for infantrymen on small base defense because of the high firing rate and heavy rounds that destroyed ground targets nearby.
The M42A1 Skysweeper was equipped with a twin set of antiaircraft 40-mm self-propelled guns in an open turret on a tank... [continues]
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