Supermarine Aircraft in the US and is now an American limited liability company. Aircraft are now approved and flying in many countries and over 92 have been sold. The Supermarine Aircraft Spitfire is the only all-aluminium replica Spitfire in production. Three models have been produced, all sub-scale: Supermarine Aircraft Supermarine Aircraft, LLC is an American kit aircraft manufacturer based in Cisco, Texas, with its head office in nearby Clyde. Originally founded in Brisbane, Australia by Mike O'Sullivan and his business partner John McCarron, the company manufactures the Supermarine Aircraft Spitfire homebuilt kit aircraft which, although slightly smaller than the original Supermarine Spitfire,
Supermarine Aircraft Spitfire British Light Aircraft Association. The company has since moved to Cisco Airport, Texas in the US, which O'Sullivan also manages. The prototype MK25 was initially fitted with a Rotax engine, before development progressed through a series of more powerful Jabiru types. Early production models were powered by eight-cylinder, Jabiru engines made in Australia. Subsequently, the company introduced a V6 Isuzu engine conversion, producing with supercharger, as well as a V8 General Motors automotive engine conversion producing . Early versions of the Spitfire MK26 used an eight-cylinder Jabiru 5100 horizontally opposed aero engine, but early installations suffered from inadequate cooling. The