190828-N-UY653-0129 BOSTON (Aug. 28, 2019) Chief petty officer selects, Sailors who have been selected for the paygrade of E-7, participate in a mast climbing evolution during Chief Heritage week aboard the oldest commissioned warship afloat in the world, USS Constitution. During the selectees 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 Mass Communication Specialist 1st Class Ryan U. Kledzik/Released)