Cmdr. Christopher Valdivia, auxiliaries officer aboard the aircraft carrier USS Carl Vinson (CVN 70), explains how to plot the ship's coordinates to training officer Lt. Cmdr. Amy Hunt on the ship's bridge underway in the Arabian Sea on April 12, 2011. The Carl Vinson and Carrier Air Wing 17 are conducting maritime security operations and air support missions in the U.S. 5th Fleet area of responsibility.