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Impact of Prop Pitch on Trolling Speed
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<blockquote data-quote="FuzzyGrub" data-source="post: 503488" data-attributes="member: 3438"><p>If his idle rpms changes with a prop change, then he should re-adjust the idle rpms to spec. My self, never have seen an idle rpm change with a prop change that is usually within 1-2" of current one, but it might, if his motor calls for in-gear idle speed adjustment vs in neutral.</p><p></p><p>I suspect that his idle speed is an utmost concern for trolling speed. Myself, it hasn't been a concern, so suggest using the calculator to see what kind of change might happen. </p><p></p><p><a href="https://www.mercuryracing.com/propellers-overview/prop-slip-calculator.html" target="_blank">Merc Calc</a></p></blockquote><p></p>
[QUOTE="FuzzyGrub, post: 503488, member: 3438"] If his idle rpms changes with a prop change, then he should re-adjust the idle rpms to spec. My self, never have seen an idle rpm change with a prop change that is usually within 1-2" of current one, but it might, if his motor calls for in-gear idle speed adjustment vs in neutral. I suspect that his idle speed is an utmost concern for trolling speed. Myself, it hasn't been a concern, so suggest using the calculator to see what kind of change might happen. [URL='https://www.mercuryracing.com/propellers-overview/prop-slip-calculator.html']Merc Calc[/URL] [/QUOTE]
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