The Spit IA should have a Constant Speed Prop

[*Buzzsaw*]

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 know what? I don't think there is much difference between the 109E3 and 109E4, so why don't you tell Luthier to scrap his plans to add the E4?

The differences between the Spit I and Spit II are there, and additionally, the Spit II was not used till late in the Battle and in small numbers.