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Preliminary numbers for the Suzuki DF 140. It has a Suzuki 14”/20” pitch SS prop. Conditions were windy and1-2 ft chop. Full tank of fuel and just me on the boat with normal equipment. I have about 5 hours on it. Planning on running it again this weekend. MPH is with a handheld Garmin GPS. WOT showed 6450 RPM but I didn't leave it their long enough to get any numbers. Thinking I may try a 22" prop?

RPM MPH GPH
3500 20.5 2.5
4000 26.6 3.4
4500 29.8 4.6
5000 33.6 5.6
5500 38.1 6.5
6000 39.6 9.4