Supersize me!

[Daddyo]

9 knots cruise, 2000nm range with 10% reserve at 6 knots.

 

[koliver]

6 knots? Be sure to report in if you ever cruise at anything less than 8. I know none of the rest of us slow down to 1.0 x Sqrt waterline. Except FF of course.

 

[FF]

50 ft boat , close to 49 on the waterline gives 7K with very low fuel burn and 8K is not much more.SL x 1.15

Cheap burn and speed simply take a long light boat , skinney would help even more , at higher speeds.