Sheppard in Photos
Airman Jarod Tracy, 363rd Training Squadron aircraft armament apprentice course student, installs a bracket that holds the recoil cylinder on a 40 mm Bofors cannon 40 mm cannon is used by the AC-130u "Spooky" gunship for air to ground support. The recoil cylinder is responsible for ensuring a 7.8 inch recoil tolerance. Tracy and his classmates are scheduled to graduate on Oct. 17, 2017. (U.S. Air Force photo by Senior Airman Robert L. McIlrath)

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Photo by: Senior Airman Robert L. McIlrath |  VIRIN: 171006-F-ZC626-0044.JPG