Robert Barnard wrote:

Has anyone checked out the Felix prop?

W-10508 Bell Rd., Camp Douglas, WI 54618
608-427-6544 / 800-PROPELR
(got this off the Sonex list)

This is the double-bulge airfoil.  The designer, Fred Felix, was looking for
a more efficient white water paddle, the shape he came up with was
anticipated to develop more thrust, but resulted in a quieter prop.

Rob Barnard

 
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