The Vought F6U Pirate was the Vought company's first jet fighter, designed for US Navy during the mid-1940s. Although pioneering the use of turbojet power as the first naval fighter with an afterburner and composite material construction, the aircraft proved to be underpowered and was judged unsuitable for combat. None were ever issued to operational squadrons and they were relegated to development, training and test roles before they were withdrawn from service in 1950.