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 How to measure a three blade prop 
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MMT Member

Joined: Wed Dec 14, 2016 9:02 pm
Posts: 16
Post How to measure a three blade prop
I have a 27hp prodrive gen 2 with original 3 blade prop. I bought it used guy told me it was the original prop.
I have searched everywhere and can't find out how to
Measure prop to see if it's worn and if anyone knows what size it started as.
It's a stock motor and I get about 18mph with two guys. 1651 Phowler extreme boat
Thanks


Mon Sep 11, 2017 7:55 pm
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MMT 1000 Club

Joined: Mon Dec 31, 2012 11:07 pm
Posts: 4820
Location: West Monroe, LA
Post Re: How to measure a three blade prop
Center of hub to end of one blade. That's the radius. Double that.

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Tue Sep 12, 2017 5:26 am
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MMT F.E.

Joined: Mon Jul 14, 2014 8:19 am
Posts: 981
Post Re: How to measure a three blade prop


Tue Sep 12, 2017 7:18 am
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MMT Member

Joined: Wed Dec 14, 2016 9:02 pm
Posts: 16
Post Re: How to measure a three blade prop
Thanks Russ
bluesky2012 = #duestchbag


Tue Sep 12, 2017 11:33 am
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Joined: Tue Jan 13, 2009 7:19 pm
Posts: 6441
Location: Trinity Bay - Texas
Post Re: How to measure a three blade prop
It is not the diameter that matters....

As a three blade wears the blades wear most in width....

PD liked the GD 3 blade which was 3 1/2" wide across the blade when new
still ran well at 3 1/4" but was worn out at 3" and useless for loads or speed...

I wear out a 3 blade by 50-70 hours FYI

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Tue Sep 12, 2017 7:33 pm
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