Who made it & value?

[oldtruck]

Only markings are Model 670-24 & Serial 3931. It is 70 1/2 inches long
& 8 inches wide. Any info appreciated. Jim
kitfoxlover@gmail.com

[Dave]

It looks like an airboat propeller. Many were made by Sensenich, but typically they had Sensenich decals on the blades. Perhaps it's been refinished?

[oldtruck]

Thanks. It is a puller not a pusher. Don't know much about airboats but the few I have seen were pushers.

[Dave]

It's a right hand thread, but that can be a pusher configuration with an engine that rotates opposite the normal or that has a geared drive, which can reverse the rotation. Aerodynamically, pusher and tractor props are identical. It's the engine rotation that determines application.

[oldtruck]

Interesting information. This came off of a 65HP powered Ercoupe fusalage on 4 Federal skis. Early snowmobile. Jim

[Dave]

I wonder if it was custom made for that use. The flat pitch and broad blades are characteristic of a non-flying device, since they add desirable drag at low rpms. The squared off tips add clearance.