Fighter aircraft use "C" (Nieuport 17 C.1). Although the term "fighter" specifies aircraft designed to shoot down other aircraft, such designs are often also useful as multirole fighter-bombers, strike fighters, and sometimes lighter, fighter-sized tactical ground-attack aircraft. This has always been the case, for instance the Sopwith Camel and other "fighting scouts" of World War I performed a great deal of ground-attack work. In World War II, the USAAF and RAF often favored fighters over dedicated light bombers or dive bombers, and types such as the Republic P-47 Thunderbolt and Hawker Hurricane that were no longer competitive as aerial combat fighters were
Armstrong Siddeley Ltd, which later became Self-Changing Gears – the gearbox that should be credited with enabling the marketing tagline "Cars for the daughters of gentlemen". Armstrong Siddeley manufactured luxury cars, aircraft engines, and later, aircraft. In 1935, J. D. Siddeley's interests were purchased for £2 million by Tommy Sopwith owner of Hawker Aircraft to form – along with the Gloster Aircraft Company and Air Training Services – Hawker Siddeley, a famous name in British aircraft production. Armstrong Whitworth Aircraft became a subsidiary of Hawker. The aviation pioneer Thomas Octave Murdoch Sopwith – Tommy, later Sir Thomas, Sopwith – became chairman of