An interesting project. In real life the Spiteful and the Seafang were the last of the piston Spitfires to be put forward, but neither actually saw service, which makes this a sort of "What If" project. According to BAE Systems Heritage website 13 prototypes & F.31's were built for trials, while 6 F.32's that were fully navalised (folding wings and contra-rotating propeller) were actually build for the Royal Navy, there are no records of them flying in service according to the FAA.
