I was recently gifted a propeller and I am trying to track down what its history is. From what I was told is that it came off a crop duster and has been sitting in a barn since the 50’s. That seems to check out considering some delamination on the backside of the prop.
It has metal leading‑edge sheathing with rivets, fabric on the outer third of each blade, a 2.5” tapered center bore, a hub about 3–3.5” thick, six through‑bolt holes plus six smaller plugged holes on a slightly different circle (2.5”), and the hub face is stamped “F 6399” with “1” and “2” near opposite sides and a “13” near one of the plugs.
On the top of the hub there’s a very faint line of stamps that looks like it might read “72 x 42” along with some worn letters/numbers and a clear “S,” and there’s also a pencil note on the back that looks like “4 1/4 – 2 1/8.”
Can anyone tell me who likely made this, roughly what era it’s from, and what kind of aircraft or engine it might have been used on?
It has metal leading‑edge sheathing with rivets, fabric on the outer third of each blade, a 2.5” tapered center bore, a hub about 3–3.5” thick, six through‑bolt holes plus six smaller plugged holes on a slightly different circle (2.5”), and the hub face is stamped “F 6399” with “1” and “2” near opposite sides and a “13” near one of the plugs.
On the top of the hub there’s a very faint line of stamps that looks like it might read “72 x 42” along with some worn letters/numbers and a clear “S,” and there’s also a pencil note on the back that looks like “4 1/4 – 2 1/8.”
Can anyone tell me who likely made this, roughly what era it’s from, and what kind of aircraft or engine it might have been used on?
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