The Supermarine Spitfire was a British single-seat fighter serving in the RAF and other Allied air forces during World War II. The aircraft, together with the Hurricanes, formed the basis of the British Fighter Air Force during the Battle of Britain. Many variants of the Spitfire were created, used several wing configurations and were also produced in larger quantities than any other British aircraft.
Type C was a new design, also known as the "universal wing", was standard on most Spitfires built since mid-1942. This wing has been redesigned to reduce labor and production time. in addition, it was designed to allow mixed options of type A, type B or four 20 mm Hispano cannons. Several versions of the Spitfire, including the Mk XIV and Mk XVIII, had integrated 13-gallon fuel tanks at the leading edges of the wings, between the wing root and the inner cannon.