why the spit turns most effectively at the limit edge and the 109 doesnt

[Kurfürst]

Originally Posted by Rumcajs

The wing is elliptical. Lift distribution is modified to a certain degree that's true, but it still has lift more evenly distributed than the wing of a 109. And the elliptical shape is responsible for that.

I'd love to see some lift distribution graphs to support that.

Your claim is not exactly true, because induced drag simply has something to do with the shape and lift distribution. You are right that the wing of a spit is large and that's why lower angle of attack ... ok. But the shape contributes too.

Certainly shape is a factor, but I do not think it's a major or measurable factor compared to sheer wing size. The Spitfire had a very large wing for a very small airframe, much larger than any other with the possible exception of the Zero.

If wing shape would have been such a factor, planes like the Curtiss Hawk, Zero or Hawker Hurricane wouldn't run circles around the Spitfire, but they did.

BTW if the elliptical shape didn't bring advantages, why would the Brits bother to manufacture them?

Simply because the British Air Ministry specified an 8-gun armament, and Supermarine could not find space in the wings to house them without enlarging the original trapezoid wing of the Spitfire (which was meant for a four gun armament). The design team was simply practical about it.