The housekeeping unit at Aviano was originally known as Detachment 1 of the 629th Air Control and Warning Squadron, later redesigned 7227th Combat Support Group then 40th Bombardment Group, 40th Tactical Group and, finally, 40th Tactical Support Wing.
In 1992, the wing was renamed the 401st Fighter Wing when that unit moved to Aviano from Torrejon AB, Spain. In April 1994, the 401st FW was redesignated the 31st FW under the U.S. Air Force's unit heritage program which preserves the rich lineage and illustrious accomplishments of historic units. (update July 1997)
In the pictures: 28 July 1968, "Aviano NAT0 Day": a Convair F-102A "Delta Dagger" (56-1061) and a Convair C-131A "Samaritan" (52-5788) in the static display area.
(Aeromedia, maggio 1999)