A-10s at Grayling Aerial Gunnery Range
An A-10 Thunderbolt II from the 107th Fighter Squadron, Michigan Air National Guard, fires its primary weapon, the 30- millimeter GAU-8 Gatling Gun, during a training mission at the Grayling Aerial Gunnery Range, near Grayling, Mich., April 24, 2012. The Grayling range provides a wide variety of training scenarios for both aircraft and various ground personnel. More than 1,700 air missions are flown every year at the range. (U.S. Air Force photo by TSgt. David Kujawa)