The Spit IA should have a Constant Speed Prop

[41Sqn_Banks]

Originally Posted by Skoshi Tiger

Looking at the charts of similarly equiped MkI and MkIIs there are differences but in my opinion they are quite minor.

The following link shows a comparison between a late model MkIa and a MkIIa
http://www.spitfireperformance.com/spitfire-II.html

Cheers

You are right about the performance, the difference is small. However the handling of Merlin III (Spitfire I) and Merlin XII (Spitfire II) is different.
E.g. Climb boost: Merlin III +6 1/4 vs. Merlin XII +9.