Three Blade for a 31' O'day

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David Hirtle

Good morning: As we get closer to the departure date for a planned trip south, we are looking for advise egarding the appropriate three Blade prop for our 1985 31' O'day. This boat has the M-18 Universal with the standard gear (2 to 1 ratio) and the shoal draft keel. Thanks!
 
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Bill O'Donovan

You're in luck

The Hunters Owner Website has almost 20 posts on this. Go under "Site Search" and check off the first four boxes. Then type in the words "3 blade prop vs. 2" and you'll find lots of relevant advice. Merry Christmas.
 
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Kevin

spec.

Hello Dave, If you zap back to me the current two blade configuration along with the motor information and transmission reduction gear, we can run a calculation for you. Hope this helps. Kevin
 
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David C. Hirtle

Kevin, Thanks for the response. I don't have the dimensions for the existing two blade but I will get them. The boat is a 1985-6 31' O'day, shoal keel, Universal M-18 (14 HP) with the standard Hurth 2:1 gear ratio. This will keep the conversation alive! Thanks, David KHRTL@CS.COM
 
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