Quote:
. . . The one thing I have a question about is why this boat sits so stern heavy when others have a bracket and twins and don't sit as deep. Does anyone have any thoughts on this?
I look forward to participating more in the forums now that I actually own a boat. By the way it is my first boat so this is a fun time.
Alan
|
Welcome to the site Alan! Lots of good knowledgeable folks on here, so don't be shy about asking questions!
I've always thought Peter B's boat sat pretty low in the back and I always wondered if it was self bailing at the dock. If I remember correctly, I think it had older Yamaha HPDI's, which I think are over 500 lbs, almost as heavy as some 4-strokes. When Potter designed it in the early 70's, the biggest motors were carb'd 2-strokes that I don't think weighed much over 400 lbs, plus it wasn't designed for a bracket.
Cause might be not enough flotation in the bracket, heavy motors, and too much setback in the bracket, plus the CC's seem to be a little more stern heavy than the Sceptre/Tsunami's. Most brackets designed for twins have additional flotation compared to those designed for a single, but that only affects trim at rest; flotation tank is no help once you're on plane. The 23's are less weight sensitive than the 20's, but the same laws of physics apply! Anything you can do to move the CG forward will improve the ride, make it easier to get on plane, and reduce minimum planing speed. A well-balanced rig should be able to plane at 10-12 mph, which is a big deal when the seas get nasty! Moving the gas tank, batteries and even the console further forward will all help. 4-blade props will provide more stern lift to improve low speed planing ability, as will a Doelfin or equivalent added to cavitation plate. More extreme fixes would be a big single modern DI 2-stroke like an Optimax or E-Tec, or even smaller twins with spare low-pitch prop to allow planning on 1 engine. A bracket with less setback and a bigger flotation tank, like a Hermco, would also help. Good luck playing with and tweaking your new toy! Denny