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Old 17 November 2012, 10:29   #1
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Country: Canada
Town: Gibsons
Boat name: Hokie Pokie III
Make: AB
Length: 3m +
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SS vs AL prop on a 15HP 2 stroke?

I will be starting to get my 3m RIB and 15 HP Yamaha 2 stroke rigged shortly. Assuming that when I get everything dialed in, and the stock aluminum 9 1/4 x 11 J prop will allow the engine to run within the correct RPM range, would there be any advantage in switching to a Stainless prop? I'm a bit surprised at how crude the Yamaha prop looks, but perhaps it's not an issue with engines of this size.
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1993 Bayliner 3288, 351 Fords, converted to tuned port programmable EFI. 2012 AB 9.5AL RIB, Yamaha 15MSH (tender)
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Old 17 November 2012, 13:44   #2
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I would say very little advantage, and a fair disadvantage in that if you do clip a rock or other hard item, you may do damage to the lower unit.

BTW, the only time you see the prop is when the boat's out of the water.

jky
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