 This drop a result of aircraft attrition as well as the fact that production lines had closed in 1961.The 83d was inactivated to make up for attrition losses of F-101s in other units, but six aircraft remained at Hamilton as the 84th Fighter-Interceptor Squadron strength increased from 18 to 24 Voodoos.The 83d FIS was reactivated at Loring Air Force Base, Maine, in July 1971 when it absorbed the mission, personnel, and Convair F-106 Delta Darts of the 27th Fighter-Interceptor Squadron.