Supermarine Aircraft Spitfire Aircraft company and produce all-Australian homebuild aircraft kits. In the event, the constant-speed, four-blade propeller would be obtained from a specialist firm in New Zealand. Supermarine Aircraft is not related to the original British Supermarine company, although the owners of the Supermarine marque have given their permission for the name to be used. The first production model was named the Spitfire Mk25 and was a 75% scale replica of the original Supermarine Spitfire design. The stressed skin structure consists of 2024 aluminium alloy skins, formers and longerons with some fibre-glass mouldings for parts such as fairings and air scoops. The
Supermarine Spitfire more reliable installation with an improved feed mechanism and four .303s in the outer wing panels. The modified fighters were then delivered to 19 Squadron. The operational history of the Spitfire with the RAF began with the first Mk Is "K9789", which entered service with 19 Squadron at RAF Duxford on 4 August 1938. The Spitfire achieved legendary status during the Battle of Britain, a reputation aided by the famous "Spitfire Fund" organised and run by Lord Beaverbrook, the Minister of Aircraft Production. In fact, the Hurricane outnumbered the Spitfire throughout the battle, and shouldered the burden of the defence