Spit IIa is now so much more inferior to the 109

[NZtyphoon]

Originally Posted by Kwiatek

Maby at 6 1/2 lbs yes but still not sure with CSP but really doubt with +12 lbs emergency power for SPit. 1300 HP make really difference here.

Although the 100 Octane was really only effective up to about 10,500ft, so in a short zoom climb against a 109 below these altitudes a Spitfire using +12 lbs could probably catch a 109; the CSP prop made a bigger difference above that altitude. From what I can find the 109 also had a steeper climb angle which made it hard for a pursuing Spitfire to line up its sights.