Leading Edge Slats on the Me-109

[Crumpp]

I should remind you that slats deploy before the main wing has actually stalled which makes my original text quite correct thanks.

Ok taildragger,

Do you understand that the basic effect of the slats is to add energy to the boundary layer and delay seperation?

On the lift polar, the slats have the effect of extending the lift polar increasing both maximum co-efficient of lift tied to that, available angle of attack. This is a completely different effect from increasing camber, btw.

The wing stalls at a higher angle of attack with the slats deployed.

The plain airfoil cannot reach that same angle of attack and is stalled while the tips continue to fly. When the plain airfoil, which makes up the majority of the Bf-109's wing is stalled, the pilot does not have enough control to raise the nose and stall the tips which do gain the benefit of the slats.

Study the diagram below and explain to me how the plain airfoil can continue to fly and reach the slated portion CLmax??