One calculator showed over a 100 hp difference than another calculator using the exact same input data (calculating estimated HP based on mph/et/weight)... Still pretty cool to get some estimates.
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Boating is not a matter of Life or Death.
It's more important than that.
. . . . . . . 1988 Skipperliner Custom 53x14 . . . . . . . . . .2007 Bayliner 175BR . . . .