Sources for STU sized Wing??

[Eagle7]

... from the center of the radius of the leading edge to the center of the radius of the trailing edge....

Thanks for the diagram. I think you mean the center of curvature, not center of radius. The center point of a radius is by definition not on the curvature.

[Greg Amy]

I think you mean the center of curvature, not center of radius.

I do mean that, thank you.

[Matt93SE]

Thanks for the diagram. I think you mean the center of curvature, not center of radius. The center point of a radius is by definition not on the curvature.

That's what confused me. the center of the radius would be, well, the center.