Offshoreonly.com - Prop pitch question

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- - Prop pitch question (https://www.offshoreonly.com/forums/prop-talk/160930-prop-pitch-question.html)

jdub	06-14-2007 07:04 PM

Thanks. Battery was dead so no MPH. I'll have to go out again to get some hard numbers.

Griff

06-15-2007 03:31 AM

Quote:

Originally Posted by jdub (Post 2163651)

Is there a rule of thumb on how much a pitch size increase will change RPM at WOT.

General rule is 200 rpm decrease for every 1" of pitch increase----with the same make of prop.

jdub	06-26-2007 07:48 PM

Well I ran a 26 Bravo and saw 82 GPS @ 5300. At this point I would say this is the prop for me. But I am still open to suggestions on what else to run. Thanks.

bbladesprops

06-26-2007 09:43 PM

Labbing a 28 is another option that will put you in the same rpm range (5200ish). Your current efficiancy will help to determine if Labbing is a good all around option. Your gear ratio will help to make the determination.

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