100th Air Refueling Wing
At Beale, the 17th continued global strategic bombardment alert to 30 June 1976 when it was inactivated as part of the phaseout of the B-52 at Beale. The wing's KC-135 tanker aircraft were subsequently reassigned to the 100th Air Refueling Wing, which SAC moved to Beale from Davis-Monthan AFB, Arizona, as part of SAC's phaseout from Davis-Monthan. The mission of the 100th ARW was primarily primarily to refuel SR-71s of the 9th Strategic Reconnaissance Wing. Concurrent with this action the 100th's U-2 aircraft at Davis-Monthan would merge with the 9 SRW and its SR-71 operations at Beale. The first U-2 arrived from Davis-Monthan on 12 July 1976, and until 26 January 1990, when budget restrictions forced the retirement of the SR-71, Beale was the home of two of the world’s most unusual aircraft.
The 100 ARW remained at Beale until 15 March 1983 its assets absorbed by the senior 9th Strategic Reconnaissance Wing, which became a composite wing under the one-base, one-wing concept.