180625-N-PM193-0054 PACIFIC OCEAN (June 25, 2018) Aviation Structural Mechanic 3rd Class Lucas Harney directs the crew of an MH-60S Sea Hawk helicopter assigned to the “Black Knights�? of Helicopter Sea Combat Squadron (HSC) 4 during a replenishment-at-sea aboard the Nimitz-class aircraft carrier USS Carl Vinson (CVN 70). (U.S. Navy photo by Mass Communication Specialist 3rd Class Alexander C. Kubitza/Released)