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New to the forum. About 50 years ago I was gifted a 4'-8", 7.00 pitch, 3-blade, scimitar design, wooden propeller by a gentleman my father worked for at Bendix in South Bend, IN. Pretty sure from the PP stamping it is an American Propeller Corp, Paragon brand prop. The stampings are not all clear as some digits appear to be re-stamped. Anyhow, I'd love to know more about the origins of this prop, including why it was made. Any help greatly appreciated. Pics attached, I hope.
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Nice looking prop. I've seen several of those and I agree it's likely a Paragon. From some earlier Paragon literature I believe that the concept behind the scimitar shape was to allow some twisting of the blades at higher RPMs, effectively making it a sort of "variable pitch" design, at least in theory. The concept behind the three blades was to lower the radius of the propeller arc, which could reduce the likelihood of a prop strike.
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