I have a 10 ft tru-line sportscat boat that is a tri-hull. My outboard engine is a 15 hp long shaft (23"). I understand that the cavitation plate should be at the bottom level of the hull or and inch or so higher at most.
My problem is that there are several measurements on this hull from the top of the transom. To the left and right of center the measurements are 21" and towards center is 17" and in the center it is 20" from top to bottom of hull. Which do I use? Right now the cavitation plate is approx 3" below the center measurement.
I am thinking I need a mini jacker plate to lift this up 4 inches and wanted to get some input on if that would be ok with the cavitation plate at approx 1 inch above the hull line at the measurement and?
My problem is that there are several measurements on this hull from the top of the transom. To the left and right of center the measurements are 21" and towards center is 17" and in the center it is 20" from top to bottom of hull. Which do I use? Right now the cavitation plate is approx 3" below the center measurement.
I am thinking I need a mini jacker plate to lift this up 4 inches and wanted to get some input on if that would be ok with the cavitation plate at approx 1 inch above the hull line at the measurement and?