Offshoreonly.com - Cutting prop Dia?

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- - Cutting prop Dia? (https://www.offshoreonly.com/forums/general-boating-discussion/264497-cutting-prop-dia.html)

sean stinson

10-22-2011 06:26 AM

Quote:

Originally Posted by Noise Pollution (Post 3533452)

Instead of labbibg or thinning the blades, what about cutting the diameter down? How muchwould you have to cut for 300 or 400 rpm? What effect would it have in the mid range?

PM your contact info and I will give you a call!!!!

sean stinson

10-22-2011 06:29 AM

Quote:

Originally Posted by Noise Pollution (Post 3533537)

Slip is around 14%. Little scared of a five blade. 700#'s of torque through a bravo one.

If you go to a 5 blade it will improve your cruise significantly....BUT....you can't have a heavy hand if you catch my drift!!!!! In other words you can't have very many misses before you break something!!!!! So how much hardcore WFO boating do you do????

Noise Pollution

10-22-2011 08:20 PM

I have a stock 26. I put a borrowed shorty on the boat. I first tried a the 26. I could turn it 5200-5300 rpm.It was like spining tries. Boat only ran 60.The 28 has a supper cruise in the mid range. Just need a fer more rpms.
Also both props measure 15" in Dia.

sean stinson

10-22-2011 08:25 PM

Quote:

Originally Posted by Noise Pollution (Post 3534178)

Not 15.25"????

Noise Pollution

10-22-2011 08:32 PM

Quote:

Originally Posted by sean stinson (Post 3534181)

Not 15.25"????

No. its 15"

A.O. Razor

10-22-2011 08:55 PM

Quote:

Originally Posted by Noise Pollution (Post 3534189)

No. its 15"

Yep. Why merc stamps them 15.25" beats me. Maybe Bblades can tell us this. As mentioned ealier, it's only the 32 and 34 that measures 15.25"

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