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#8 | |
Senior Member
Join Date: Feb 2005
Location: Gilford, NH and Florida
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![]() Quote:
18 to 22 Ft. single I/O will get somewhere in the 4 MPG range. 22 to 25 Ft. Single I/O will average about 3 MPG when cruising at about 3000 RPM. If you read the reviews in most boating magazines that is usually the most efficient engine speed for boats in this range. 30 to 38 Foot planing boats with twin big block engines will be in the 2 MPG range. Standard displacement cruisers in the 35 Ft. range will get about 1 MPG and cruise at 14 to 18 MPH. Of course there are many different hull shapes and engines, and the weight of similar sized boats will differ from each manufacturer, but in general I think that these numbers are not too far off. |
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