170919-N-PJ969-0020 SAN DIEGO (Sept. 19, 2017) An MH-60S Sea Hawk helicopter assigned to the Merlins of Helicopter Sea Combat Squadron (HSC) 3 retrieves an air crew rescue swimmer trainee during a simulated rescue at sea. HSC-3 is the largest search and rescue training command on the west coast. (U.S. Navy photo by Petty Officer 1st Class Abe McNatt/Released)