 Accordingly, a more functional system was adopted in which each base was organized into a separate numbered unit.The squadron was, therefore, disbanded in April 1944 and replaced by the 261st AAF Base Unit (Combat Crew Training School, Fighter), which took over the personnel, equipment and mission of the squadron at Abilene Army Air Field.The May 1949 Air Force Reserve program called for a new type of unit, the corollary unit, which was a reserve unit integrated with an active duty unit.