BOSTON (October 29, 2021) A chief petty officer (CPO) selectee conducts line handling operations during CPO Heritage Week on board the USS Constitution in Boston, Mass., Oct. 29, 2021. Constitution got underway to culminate the annual “Chief Season” tradition where Chief Selects from around the Fleet live on board and are trained in various maritime evolutions. Constitution, first launched in 1797, is the world’s oldest commissioned ship afloat and is nicknamed “Old Ironsides” from the War of 1812 when British cannonballs were seen bouncing off the ship’s hull. (U.S. Navy photo by Chief Petty Officer Joshua Karsten)