USAF I was Crew Cheif from the day it left the factory. It was used for Minuteman Missile support mainly. But had on many occassions supported the Atomic Engery commission. Example chasing radiation clouds. Nevada and in Mississippi. The helicopter was assign to the 351st Missile Sq. Whiteman AFB, MO. Maintained by the 351st Consolidated Line Maintance Sq. under Col Sam Tuck