190822-N-NZ999-052 BOSTON (Aug. 22, 2019) USS Constitution Sailors prepare training for chief petty officer selects, Sailors who have been selected for the paygrade of E-7, during Chief Heritage weeks aboard the oldest commissioned warship afloat in the world. During the selects’ week spent aboard Constitution, Sailors teach them a variety of time-honored maritime evolutions while living and working aboard the ship. (U.S. Navy photo by Seaman Nathan Roth/Released)