As a method to raise funds for the war effort, a scheme was created that allowed individuals, businesses, and communities to pay to have an aircraft inscribed with a particular name (known as the "Spitfire Fund"). These special aircraft would later become known as "Presentation Spitfires". One such Spitfire (P7923) was dubbed "Venture I". Built in Castle Bromwich Aircraft Factory as a Mk IIa (thus equipped with a Merlin XII engine and 8 Browning machine guns) and entered into service on 1st February 1941, the aircraft was initially attached to the RAuxAF 610 Squadron (encoded "DW-H"), before being transferred to the RCAF 411 Squadron (encoded "DB-R"), based at RAF Digby, in July of the same year. In November 1942, the aircraft was sent to the Central Gunnery School at RAF Sutton Bridge, where it later collided with a stationary Miles Master trainer during taxi in February 1944 and was finally written off on 9th November 1944.

Introduced in Update "Starfighters", the Spitfire Mk IIa Venture I plays much like its tech tree counterpart. It has excellent climb rate and is relatively fast, but its main strength is the extremely tight turn radius. This allows the pilot to confidently draw any opponent into a turning engagement and emerge victorious (bar the occasional biplane and Japanese fighters, against which the superior speed and energy characteristics of the aircraft can be utilised). However, the key drawback of the Spitfire Mk Ia is the mediocre armament. While the 8 Browning machine guns present great volume of fire, they are rather weak and quite limited by convergence due to their spread-out nature across the wings, and thus may require a long time on target to successfully down an opponent.