Cougar den Published Feb. 12, 2019 By Senior Airman Daniel Garcia 375th Air Mobility Wing Public Affairs SCOTT AIR FORCE BASE, Ill. -- The 458th Airlift Squadron hosts 7 C-21 aircraft inside a hangar at Scott Air Force Base, Illinois on Feb. 9, 2019. A $38 million avionics upgrade for the fleet is underway and a consolidation effort is moving four aircraft from Joint Base Andrews, Maryland, to join Scott’s 10 C-21s by late summer, bringing the total of 14 aircraft assigned here.