[6] The Bulldogs were replaced by Gloster Gauntlets, in September 1936 and Gladiators in April 1937,[7] before the Squadron's first monoplane, the Supermarine Spitfire, arrived in March 1939. In mid-1942, the squadron joined No. 1 Wing (Spitfire Wing) of the Royal Australian Air Force, a Spitfire unit responsible for air defence duties against Japanese aircraft in the Darwin area.
