Thread: 210 Cummins RPM
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Old 06-23-2018, 05:25 AM   #7
FF
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For the easiest long range cruising a speed of the Sq rt of the LWL works well.

This speed is in Knots

Multiply by .9 for a heavy fat boat or 1.15 for a light sleek boat.

Whatever RPM is required to maintain this easy cruise speed will be comfortable over the long run and about as efficient as the boat can be.
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