Monitoring Catapult Operation Navy Petty Officer 3rd Class Dan Triplett monitors no-load-runs of a catapult on the flight deck aboard the aircraft carrier USS Carl Vinson as the dry cargo and ammunition ship USNS Charles Drew sails in the background in the Pacific Ocean, Feb. 3, 2017. Triplett is an aviation boatswain’s mate, equipment. Navy photo by Petty Officer 2nd Class Sean M. Castellano SHARE: Download: Full Size (0.3 MB) Tags: Sailors, training, Navy Credit: Petty Officer 2nd Class Sean M. Castellano VIRIN: 170203-N-BL637-084A.JPG Photo Gallery