Qualification Course Navy Petty Officer 3rd Class Erik Hansen calibrates a .50-caliber machine gun during a live-fire qualification course on the USS Theodore Roosevelt in the Pacific Ocean, April 27, 2019. SHARE: Download: Full Size (1.28 MB) Tags: Navy Credit: Navy Petty Officer 3rd Class Erick A. Parsons VIRIN: 190427-N-ZM949-1124C.JPG Photo Gallery