The Italians claimed to have downed six Gladiators and a single Supermarine Spitfire. The British Supermarine Spitfire was facing several challenges by mid-1942. The Malcolm Hood is a type of aircraft canopy originally developed for the Supermarine Spitfire. This was a scaled-down copy of the Aurora Supermarine Spitfire kit. Later variants of the Supermarine Spitfire and Seafire used the Griffon with contra-rotating props. It proved a difficult opponent even for the Supermarine Spitfire. Squadron exchanged their Mustangs for Spitfire Mk. This is a list of operators of the Supermarine Spitfire. The formation was escorted by Spitfire and Mustang fighters. Two air regiments were equipped with Spitfire Mk. The new wing was initially fitted to a Spitfire Mk XIV. An attempt to intercept it with a Spitfire from RAF Manston was unsuccessful. The Mk Vb Spitfire, AB910, escorted convoys in the Battle of the Atlantic. RKO Radio Pictures used Luke in its popular adventures of "The Falcon" and "Mexican Spitfire". Spitfire fins are based on the Wing configuration used by Spitfire aeroplanes.