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post #5 of Old 11-02-2012
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Re: Prop for my 9.9 Merc used for a sailboat

Originally Posted by Mjfossler View Post
Wondering if a more efficient prop could be used for my outboard on my O'Day 272? I have the factory one now. The Mercury website was no help at all. Any guidance appreciated!
You don't give the year of the Mercury, but if it is pretty new then it was made by Tohatsu and probably uses the same props.

We bought a 9.8 HP Extra Long Shaft Tohatsu and it comes with a 4 blade 5 pitch very high thrust prop standard. Since our Mac isn't real heavy we switched to a 4 blade 7 pitch that worked very well in tidal currents in Florida.

If the Tohatsu props work I'd go with the 4 blade 5 pitch for your boat and they probably list that prop in the Merc parts also.

Make the change and you will like it then you will also have a backup prop also,



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