Kenneth Thompson, 576th Aerospace Maintenance and Regeneration Squadron aircraft mechanic, aligns a portion of the pre-cooler ram air duct onto the top of an A-10A Thunderbolt on Davis-Monthan Air Force Base, Ariz., Jan. 23, 2013. The 309th Aerospace Maintenance and Regeneration Group is regenerating the aircraft, which was used as a trainer for munitions load crews, so that it can be converted into a storm chaser. (U.S. Air Force photo by Senior Airman Timothy Moore/Released)