Re: Conventional vs smart tabs
Swist;<br /><br />I would like to answer your question from more than one point of view. <br /><br />First is there a down side? From a boat performance view point I can not think of any. I guess it would be like asking the pilot of a small plane if he could do without the flaps. <br /><br />Some high performance boat owners may say that they slow the boat down, not true! If the boat chine walks or porpoises badly a slight deployment (helm controlled) of the tabs will eliminate the problem, and may slow the boat a bit, however operating the boat at high speeds when it is chine walking or porpoising is not safe. Smart Tabs work slightly different and since they are "spring loaded" they are not deployed at high speeds. Adjusting the pressure correctly will eliminate the porpoising or chine walk without any reduction in speed. <br /><br />With regard to the "standard equipment" issue, here is my take.<br /><br />Thinking like a boat manufacturer you need to accept the following: <br /><br />1) two of the three biggest lies in the world are - "Our Boats don't need trim tabs", and "If the boat needs trim tabs there is something wrong with the hull deign" - you know the other one - "the check is in the mail".<br /><br />2) Every dime counts, and the cost of helm controlled tabs on smaller boats is beyond the manufacturers budget.<br /><br />3) Most small boats will have twice as much HP per pound (HP to weight ratio) as there bigger (30' twin engine) cousin. With enough horse power you can make any boat plane, but that does not mean it is a good design.<br /><br />4) "Trim tabs are only needed to make the boat plane" - a false statement. Trim tabs adjust the hull design to compensate for the constant changes in water, speed, weight, and balance conditions.<br /><br />5) Most I/Os and Outboards now come with "tilt and trim" and the boat manufacturer "tilts" the transom so that the motor can help push up on the stern during acceleration. This is not only inefficient but is limited in it's effectiveness. The motor/ propeller is for propulsion not attitude adjustment.<br /><br />6) Changing props will fix the performance problems - False! They cure one problem then add to another. For example: A lower pitch prop will provide faster acceleration - but reduce top speed and run the engine faster at all other speeds, resulting in more fuel consumption. and vise versa.<br /><br />I think you will be hard pressed to find a boat owner who has trim tabs that will tell you he isn't happy with the addition. That should tell you something.