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Old 08-21-2017, 10:48 AM
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CMichaud CMichaud is offline
 
Join Date: Apr 2010
Location: New Beijing, Canada
Posts: 1,470
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Quote:
Originally Posted by KegRiver View Post
What you are experiencing is called porpoising.

It can be caused by hull design or trim settings too low or too high. Usually too high.
But it can also be caused by having the center of gravity too far aft. Or in layman's terms, too much weight too far back.

Without the boat to test, one can only guess at what the problem with a particular boat might be. In the end no one would gain from such guessing.
This is what i was thinking. I have an 8hp merc kicker on the back along with a 70hp yamaha. 16ft boat will get popoisingat speed unless my put the wife and kids forward.

Have not tried a whale tail and the trim does not fix it
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