 Complete the following phrase:  The squadron flew the B-47 Until 1965, when the medium bomber began to be phased out of SACs inventory. Ground alert for B-47s was terminated on 11 February 1966. The squadron began to send its Stratojets to the Aerospace Maintece and Regeneration Center at Davis-Monthan Air Force Base for retirement. It began receiving Boeing B-52G Stratofortresses in June 1966, receiving its aircraft from the inactivating 70th Bombardment Squadron at Loring Air Force Base, Maine. It trained in strategic bombardment missions, and stood ground alert with its Stratofortresses. it also periodically flew airborne alert indoctrination missions, but accidents at 