Lineage. Established as 305 Bombardment Group (Heavy) on 28 Jan 1942. Activated on 1 Mar 1942. Redesignated as 305 Bombardment Group, Heavy, on 20 Aug 1943. Inactivated on 25 Dec 1946. Redesignated as 305 Bombardment Group, Very Heavy, on 11 Jun 1947. Activated on 1 Jul 1947. Inactivated on 6