FSX/FS2004 Spitfire Mk VcTrop. The basic Mk V was a Mk I with the Merlin 45 series engine. This engine delivered 1,440 hp (1,074 kW) at take-off, and incorporated a new single-speed single-stage supercharger design. Several Mk I and Mk II airframes were converted to Mk V standard by Supermarine and started equipping fighter units from early 1941. This MkVc is armed with 4 cannon. Model by A.F. Scrub.