FSX/FS2004 – Spitfire XI. The Mk XI was a reconnaissance aircraft based on a combination of features from the marks VII, VIII and IX. The cameras, two vertically-mounted and sometimes an oblique mounted one, were installed in the fuselage behind the cockpit. The first Mk XIs were built in November 1942 and lasted until 1944 when they were phased out in favour of the Mk 19.