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I'm running a 12x10 3-blade Solas on a BF40D. I've measured it at 14kts with no ballast, one passenger, @5000 RPM (max I can get with that prop). I'm generally pretty heavily loaded (just under 3400 lbs) even with no ballast.

I just double-checked a trip log. I ran from Green Cove Springs to the Jacksonville Landing and back. A good portion of it was at WOT and I maxed out at 14 knots (both directions). Same engine and prop as the previous post but with two adults on board. Wind was under 10kts, no significant wave action (but not glassy).

From a past trip, 161 NM from Wrightsville Beach to near Charleston on the ICW, we ran at 5200 RPM, we had trip segments of 3.62, 4.21, 4.24, and 4.29 nm/gallon. Our speed avg was 9.97, 10.75, 9.2, 9.4, 9.6 and 9.14 nm/hour. (Some segments were done without topping off gas.) My top speed was 14.3 to 13.8 nm/hour, per the gps for each leg. Normally laden with usual load and fuel and two people.

Needless to say, for fuel efficiency, slow down. My record is 39 miles on 6 gallons.

Be Free wrote: ↑Wed Jan 05, 2022 1:03 pm I ran from Green Cove Springs to the Jacksonville Landing and back.

Nice!

Re: my new prop. Just picked up a Michigan wheel prop:
11.5”x 10 4 blade. Now to wait to test and report. Thanks for all the shared info