Quote:
Originally Posted by sidelock
So how does one figure out or calculate the center of gravity of a hull to do the calculation if a motor is already mounted on the transom. I have an 18SF that at some point in time will ultimately have to replace the 1998 Yamaha C115 @ 330lbs with a heavier four stroke and would like to know how far forward to move the 40 gallon fuel tank and or the center console.
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I think it's safe to assume that both Moesly and Potter, who were both pilots so they understood the impact of cg location on performance and handling, put the fuel tank on the boats CG so it wouldn't change trim as fuel was burned off. So if you figure that the CG of the complete hull was located at center of fuel tank with a 300 lb motor on the transom, you should be able to back calculate where the CG of the bare hull would have to be.