General rule is, the cavitation plate should be even, to 1 inch above the bottom of the boat. More info on motor, and boat, would be more helpful also. more
See full version: Transom is 16 1/2: Long or short shaft
General rule is, the cavitation plate should be even, to 1 inch above the bottom of the boat. More info on motor, and boat, would be more helpful also. more
Re: Transom is 16 1/2" :Long or short shaft?
Re: Transom is 16 1/2" :Long or short shaft? more
Ok thats what I was thinking. thanks. my concern was the shaft being shorter than the transom. Is this not an issue at all, or is it not ideal but will be ok?
When making a choice between trim tab sizes, remember that the largest trim tabs that will comfortably fit on the transom will be the most efficient. [links]
General Guidelines
These sizing recommendations are based on average performance. Your choice may vary based on power, engine configuration, weight distribution, type of boat, and use. The greater the surface area, angle of deflection and/or speed of the water flowing under the trim tab, the greater the lift.
As a rule, choose at least one inch of trim tab span (per side) for every foot of boat length. (Examples: 22-foot boat = no less than 24" x 9", 36-foot boat = no less than 36" x 9". here
Many factors affect the choice of properly sized trim tabs, and the ultimate responsibility for selection is up to you, the boat owner. To help you decide, Bennett Marine offers you a few guidelines below. [links]
Q: What is inside the actuator?
For ST series SMART TABS: [links]
A: If your boat has a curved transom, contact Technical Support at 800-233-0194 for assistance before installing SMART TABS SX. Boats with curved transoms and SX Series tabs may require en eyelet-style end fitting, part number EF-PS-140, at the actuator bottom. (SX tabs come with a clevis-style end fitting, part number EF9510-2, at the bottom.) The reason is that the curvature of the transom makes the actuator almost vertical, causing the tab to “bind up” against the bottom end fitting – in other words, the tabs won’t lift properly, and the EF9510-2 end fitting can break. The EF-PS-140 allows the actuator to swivel and accommodate this application. If you have already purchased your SMART TABS SX, contact us and we will supply the end fittings at no charge. more
Q: What is the difference between the PR500 Plate Retractor Kit and ProTroller SMART TABS? [links]
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