U.S. Air Force Tech. Sgt. Jason Bouse, right, 372nd Training Squadron Detachment 23 F-16 weapons instructor, advises Senior Airman Chris Rodriquez, 35th Aircraft Maintenance Squadron aircraft armament systems, how to install an M61A1 Vulcan cannon on an F-16 trainer during a two-week basic flightline maintenance course at Misawa Air Base, Japan, July 2, 2012. The M61A1 fires standard M50 ammunition at 6,600 rounds per minute. (U.S. Air Force photo/Airman 1st Class Kia Atkins/Released)