Tech. Sgt. Joshua Pa'akaula, 363rd Training Squadron special missions aircraft armament instructor, removes a panel from a Bofors 40 mm cannon at Sheppard Air Force Base, Texas, May 31, 2019. Learning about the components of a Bofors 40 mm cannon and how to repair it is one of my many skills maintenance Airmen acquire throughout their course. Airmen assigned to the Lockheed AC-130 aircraft will be familiar with its weapons systems upon course completion. (U.S. Air Force photo by Senior Airman Ilyana A. Escalona)