Propeller identification

gasngulp · Feb 11, 2025

Hi. Looking in any assistance to identify what aircraft this may have came from. It has clearly been recovered from the sea at somepoint due to the crustacean on one side and was eventually recovered from a property on the South coast of England, Sussex. Any suggestions would be appreciated. Thank you

Michael Hope · Feb 11, 2025

What is the material. is it steel or aluminum?
I do not see a lot of twist in the blade, aircraft propeller blades have more of a twist to the airfoil surface, i.e. a lower blade angle at the tip and a greater angle near the inboard end, so that the blade along its length moves a theoretical same volume of air.
The width at 16 inches is very wide for an aircraft propeller blade, for WW2 vintage Hamilton Standard blades a B-29 propeller blade was only just over 14 inches in width for reference, and most of the other higher HP blades were about 12 inches in width maximum, like a for the P-47, C-54, F4U, PBM.

gasngulp · Feb 13, 2025

Michael Hope said:
What is the material. is it steel or aluminum?
I do not see a lot of twist in the blade, aircraft propeller blades have more of a twist to the airfoil surface, i.e. a lower blade angle at the tip and a greater angle near the inboard end, so that the blade along its length moves a theoretical same volume of air.
The width at 16 inches is very wide for an aircraft propeller blade, for WW2 vintage Hamilton Standard blades a B-29 propeller blade was only just over 14 inches in width for reference, and most of the other higher HP blades were about 12 inches in width maximum, like a for the P-47, C-54, F4U, PBM.

Hi. Thanks for your reply, it is steel and its width and lack of twist in the blade is unusual, I can't think what else it could have come from other than an aircraft??

MiTasol · Feb 13, 2025

I can see why you thought a prop blade but I do not think that is correct, or at least not an aircraft blade. The hub end should be a round tube and some 125mm/5inches diameter and I do not see that. Maybe it is from a ships prop blade.

Also steel aircraft prop blades are hollow with a small number of internal ribs running from the hub to the tip and again there is no evidence of that in the photos you have so far posted. This is almost always visible when a blade is bent.

Propeller identification

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