OMC Propeller Question

[labrador-guy]

Hi guys and Gals, I just picked up a propeller at a rummage sale. It should work on something in my pack. The leading edge of the paddles are very blunt. Looks like it missed the last grind at the factory. I have the box that it came in and the propeller looks like it was used very little. Did Michigan wheel sell a few seconds? This prop would perform better with sharp leading edges. Would you agree?

dale

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[fisherman6]

Dale, The flat leading edge is certainly odd to see. I am no prop expert by ANY STRETCH but believe a smoothly rounded, semi-sharp leading edge to be the best. A knife edge can lead to some cavitation. Although I have to believe the flat edge would be worse than the knife edge for cavitation as well as performance. I dont know the application for a Michigan PJ 016, but it looks like a fairly small prop, maybe for an OMC 4hp around late 60s to early 70s. I could be completely off though. Just going by shape in the photo.

Maybe someone with more knowledge of props will be able to help out more.
-Ben

OldJohnnyRude on YouTube

[The Boat House]

Jet Drive?

[frankr]

For commercial / dredging / rock crushing??

[phil-b]

Michigan 012011 is supposed to be a 9×10 for OMC 18,18,20,25hp, also Honda, Yamaha, Mariner applications:

http://www.tacomapropeller.com/65812/21 … AmgA8P8HAQ

[labrador-guy]

Ya that number is stamped on the propeller. It’s a mystery to me!

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[outbdnut2]

Could it have been rebuilt by someone who didn’t finish the edges properly?…or does it appear to be brand new?

[labrador-guy]

Looks new to me!

dale

[Mumbles]

It’s for digging clams.

[Author]

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