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Boat Speed and Prop Slip calculators
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<blockquote data-quote="DaleH" data-source="post: 431264" data-attributes="member: 15636"><p>Here are a boat speed and prop slip calculator if anyone is interested:</p><p></p><p>Theoretical Hull Speed = ( Prop Pitch X RPM ) / ( LU Gear Ratio X Constant of 1056 )</p><p></p><p>Prop Slip = ( Theo. Speed - Actual Speed ) / ( Theo. Speed )</p><p></p><p>I have found the speed one pretty accurate with small open v-hull skiffs. But where a lot of your guys' boats have extensive flooring, decking, and compartments ... I'd expect lower actual speeds due to the actual weight carried. Also note a jon boat will have more wetted surface on the running hull and will be slower.</p></blockquote><p></p>
[QUOTE="DaleH, post: 431264, member: 15636"] Here are a boat speed and prop slip calculator if anyone is interested: Theoretical Hull Speed = ( Prop Pitch X RPM ) / ( LU Gear Ratio X Constant of 1056 ) Prop Slip = ( Theo. Speed - Actual Speed ) / ( Theo. Speed ) I have found the speed one pretty accurate with small open v-hull skiffs. But where a lot of your guys' boats have extensive flooring, decking, and compartments ... I'd expect lower actual speeds due to the actual weight carried. Also note a jon boat will have more wetted surface on the running hull and will be slower. [/QUOTE]
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