Michael (Mike) O’Sullivan’s Supermarine Aircraft Factory officially began its life in the kit aircraft manufacturing business in 1995, although the original idea is much older. The Mk26 and Mk26b are now well proven designs with all aluminum components pre-drilled and precision cut using a computer controlled CNC router cutter. This keeps parts standards consistent and accurate, a far cry from the original Spitfires construction methods. The main structural sections of the aircraft are pre-built in factory jigs thus ensuring the highest possible accuracy of these critical components. The method of construction is aimed at the average person who is good with their hands.