Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Whaler Porpoising?

Posted by CaptnChris on 04/24/10 - 1:29 PM
#16

DWinter wrote:
Any 15' boat that requires trim tabs has something else going on. weight distribution, trim, something!! I've driven every civilian model whaler built between 2004 and 2009 and never had this issue. I'm not trying to sound like a know it all, but I suspect something isn't right with the boats set-up.


I am inclined to agree with you. A boat that has a porpoising "attitude problem" can most always be easily corrected. Shifting weight properly and motor height is basic. The right prop is paramount and can most always properly correct the problem. It is also one of the most misunderstood, most important necessities for a boat, thus minimized as relatively insignificant....not the case at all! Tabs have their place, no doubt....for listing issues. Tabs can also create a false sense of fore and aft correction which can be detrimental to performance and economy. When understood and used properly, they are important equipment...but, not for a quick fix. Zero trim angle +(or closely thereto) is where your motor should be at cruise or speed and anything negative of zero and you are are compromising your power with economy suffering along with it. And those "whale tails"? I see them and think, Oh my!!