NightFighter

WW2 Aircraft Performance (wwiiaircraftperformance.com) - Has primary source data in droves for the Spitfire Mk.V and a good bit on the A6M2 and A6M5. Spitfire Va: Flaps Up - Gear Up around 76 mph (Indicated Air Speed) Flaps Down Gear Down around 69 mph (Indicated) Wing Loading : 25.3 lbs/ft^2 A6M2: Kinda all over the place with regards to in air testing - Navy says 74mph clean, 61 mph dirty (Indicated) but Air Force has 65mph clean and 59ph dirty (Indicated). Most wartime testing is pretty inaccurate so take these with a grain of salt. Wing Loading : 22.77 lbs/ft^2 [5500 Gross Weight (Average between several tests and MGW) / 241.5 ft^2 (Wing Area) Wing loading is definetly lower for the A6M2 so instantaneous turn is well in its favor. I think the A6M2 definetely has the edge in terms of low speed and aerodynamic turning, however its low weight and engine power did reduce its ability to retain energy. A Spitfire on the tail of an A6M2, IMO, will not be able to stay on its tail, and if the Spitfire is caught at a low enough speed I think it is in a decisively dangeous position. However, medium to high speeds is obviously where the two switch.