Like the Mk VI, the Mk VII was a high altitude pressurized variant, this time powered by the Merlin 64 (F. Mk. VII) or 71 (H.F. Mk. VII) series engine with two-stage, two-speed superchargers.
Extended, "pointed" wingtips were fitted to the Type C wings, increasing the wingspan to 40 ft 2 in (12.2 m). Because the threat from high altitude bombers never materialized many Mk VIIs later reverted to the normal, rounded wingtip.
Native mdl by A.F. Scrub