190820-N-YG104-0023 BOSTON (Aug. 20, 2019) Chief petty officer (CPO) selectees simulate the firing of a cannon during training at CPO Heritage Week, aboard USS Constitution. CPO Heritage Week is a week dedicated to mentoring the Navy's newest chiefs through naval history and heritage training aboard America's Ship of State, USS Constitution. (U.S. Navy photo by Mass Communication Specialist 1st Class Sarah Villegas/Released)