Prop Slip - Labbed vs. Stock
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I was told by my marine mechanic that, with the same pitch prop, a labbed version will provide less
mid-range cruising efficiency than that a stock version of the same prop. I also had noticed the difference when testing both a labbed 24p B/1 4-blade as well as a stock one on my 23' hull.
I assume this is caused by slippage due to the thinner blades.
Is this true?
mid-range cruising efficiency than that a stock version of the same prop. I also had noticed the difference when testing both a labbed 24p B/1 4-blade as well as a stock one on my 23' hull.
I assume this is caused by slippage due to the thinner blades.
Is this true?
Last edited by StillHaulin@63; 05-08-2007 at 02:45 PM.
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The recipe used when Labbing determines the end result.
A "standard" Lab recipe developed 15 years ago at Merc Racing for a Bravo 1 will allow for a 1-2 mph cruise loss on a sport boat. It may gain 4-5 on the top though.
Hull design , power, and Lab recipe determine the outcome.
Remember, Labbing was designed for speed. There are other advantages to Labbing also.
A "standard" Lab recipe developed 15 years ago at Merc Racing for a Bravo 1 will allow for a 1-2 mph cruise loss on a sport boat. It may gain 4-5 on the top though.
Hull design , power, and Lab recipe determine the outcome.
Remember, Labbing was designed for speed. There are other advantages to Labbing also.
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
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Thin blades do not induce slip.
Advantages often overlooked that I really like to tell folks about is Acceleration and buttery smooth operation.
Brett
Advantages often overlooked that I really like to tell folks about is Acceleration and buttery smooth operation.
Brett
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
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The acutal pitch of a lab finished prop, in most cases, is lower than that of a non-lab finished prop. Your slip really does not go up with a lab finished prop compared to a stock prop when you take into account the true pitch of the lab finished prop.