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 Aircraft Spitfire cylinder heads for the 5100. This has removed the overheating problems and also allowed the nose cowling of the Mk26 to be reshaped to remove the air intake and considerably reduce the frontal area to be in keeping with the original sleek design of the Spitfire. Construction of the Spitfire requires metalworking skills and tools and makes extensive use of aviation grade pull rivets or pop rivets. Pre-assembled kits are provided but still leave the builder with 1,200 man-hours of work to be completed. Over 92 Spitfires have now been sold around the world. After a fatal accident at Gympie,