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Airfoils with nominal Clmax > 2.3 ?

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F

fly scared!

I understand that by modifying the camber of a good profile, very high Cl can be reached.
Usually this means unusable drag and large moments.
And very rarely there is any actual wind tunnel data (and then only for truly minor mods).

So, what are the tested airfoil above 2.3 Clmax (say at Re 2M) ?

The Selig family (S1223) comes to mind, but are there other (less exotic, "thick", non laminar et c.) airfoils in this class ?
 
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