dpmulvey
Active Member
- Dec 19, 2007
- 4,188
- Boat Info
- 1999/2007 330 Sundancer Hardtop.
- Engines
- 6.2 Merc Horixons
1.5:1 Velvet Drives
Larry,
Note in the Catalog (link below) that shy of the custom actuators in stainless, Bennett only makes one actuator.
http://www.bennetttrimtabs.com/pdf/bennett_catalog.pdf
Also, the tabs you are looking at are too small for a 330 based on Bennett's own sizing chart.
True, the fin in your picture will provide some lift and add to slow speed tracking, however, the fin alone will not provide the lift that exists in the Bennett sport tab. Much of that lift comes from the "up angle" diversion from the horizontal plane itself then having the water forced down the fin. That action provides a theoritical 30% extra tab area. That is from Bennett, not me.
You may want to ping some of the members who have larger boats and see what they have for trim tabs. My friend has a 36 Dancer and his tabs are much larger than my originals in width and he is running a 12 inch chord. He is only running one actuator per tab.
I understand the issue with top pressure. The lanyard is a good idea even on normal size tabs. It is extremely rare, but not unheard of to have a tab rip loose and trash a prop regardless of tab size and like the man said; "If it's gonna happen, it's gonna happen out there."
Good Luck with whatever you decide.
Note in the Catalog (link below) that shy of the custom actuators in stainless, Bennett only makes one actuator.
http://www.bennetttrimtabs.com/pdf/bennett_catalog.pdf
Also, the tabs you are looking at are too small for a 330 based on Bennett's own sizing chart.
True, the fin in your picture will provide some lift and add to slow speed tracking, however, the fin alone will not provide the lift that exists in the Bennett sport tab. Much of that lift comes from the "up angle" diversion from the horizontal plane itself then having the water forced down the fin. That action provides a theoritical 30% extra tab area. That is from Bennett, not me.
You may want to ping some of the members who have larger boats and see what they have for trim tabs. My friend has a 36 Dancer and his tabs are much larger than my originals in width and he is running a 12 inch chord. He is only running one actuator per tab.
I understand the issue with top pressure. The lanyard is a good idea even on normal size tabs. It is extremely rare, but not unheard of to have a tab rip loose and trash a prop regardless of tab size and like the man said; "If it's gonna happen, it's gonna happen out there."
Good Luck with whatever you decide.
