Essex-class aircraft carrier

The Essex class is a retired class of aircraft carriers of the United States Navy. The 20th century's most numerous class of capital ship, the class consisted of 24 vessels, which came in "short-hull" and "long-hull" versions. Thirty-two ships were ordered, but as World War II wound down, six were canceled before construction, and two were canceled after construction had begun. Fourteen saw combat during World War II. None were lost to enemy action, though several sustained crippling damage due to aerial attacks. Essex-class carriers were the backbone of the U.S. Navy from mid-1943 and, with the three Midway-class carriers added just after the war, continued to be the heart of U.S. naval strength until supercarriers joined the fleet starting in the 1950s. Several of the carriers were rebuilt to handle heavier and faster aircraft of the early jet age and saw service in the Vietnam War, with Lexington decommissioned as a training carrier in 1991. Of the 24 ships in the class, four – Yorktown, Hornet, Lexington, and Intrepid – have been preserved as museum ships.