• S4180-PT (Fig. 12.100)

The thin trailing edge of this model was wavy for the aft 25% chord along the entire span. Because of the significant three-dimensionality, nothing conclu­sive can be said about the two-dimensional airfoil characteristics. The model coordinates were not digitized because there is no representative section.

Also see: S4061

Polar plot: Fig. 12.100

Thickness: 9.77% Camber: 4.36%

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