FS2004/FSX Supermarine Spitfire Mk XVI LF. The Mk XVI was a late production Spitfire with an American-built Packard Merlin 266, license-built version of the Rolls-Royce Merlin 66. The difference in service tooling between the British and American engines necessitated the introduction of the new mark. This is the clipped wing version. Tested in FS2004/FSX/FSX Acceleration. Gmax model by A.F. Scrub.