 Accordingly, it adopted a more functional system in which each base was organized into a separate numbered unit, while the groups and squadrons acting as RTUs were disbanded or inactivated.This resulted in the 505th, along with other units at Dyersburg Army Air Base, being inactivated in the spring of 1944 and replaced by the 223d AAF Base Unit (Combat Crew Training Station (Bombardment, Heavy)), which assumed the unit's mission, personnel, and equipment.Although the 346th group was reactivated in August 1944 as a Boeing B-29 Superfortress unit, it was assigned three new squadrons and the 505th remained inactive until it was consolidated with the 905th in 1985.