Help on identifying a prop

[hhumphrey]

Hi All
looking for help in knowing what this prop was built for .

Hub data
Type H16
PP163RH
90X500


It is a paragon prop was told it was built for a OX5 but don't know
any help would be great,

Thanks Howard

[Dave]

The H16 was a large Curtiss flying boat used by the Navy in the late teens. I think it was only powered by Liberty engines, but don't know that for a fact. The "PP" in the drawing number does in fact indicate that it was built by the American Propller Company as a Paragon Propeller.

If the hub is notched on the back or the front, it was part of a 4-blade assembly. If the hub is about 7 inches thick, it was a 2 blade model.

[Dave]

That's a beautiful prop in excellent original condition, and was almost certainly one that was sold as surplus in the early twenties and never actually mounted and used.