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-   -   AT Trim Tab versus Boat Movement (https://www.offshoreonly.com/forums/active-thunder/213688-trim-tab-versus-boat-movement.html)

R Addiction 07-28-2009 07:39 PM

1 Attachment(s)
And I got the big ones for my 25:grinser010:

slboatdrinks 07-28-2009 07:42 PM


Originally Posted by R Addiction (Post 2920186)
Tabs even with hull......lead the pack for 45 minutes down the bay :)

http://i295.photobucket.com/albums/m...ni_Run-218.jpg

Hard to tell John, but the tab looks all the way up.......?

boatfreak 07-28-2009 08:17 PM


Originally Posted by ActiveThunder (Post 2920052)
Just for grins, next time you're out, trying raising the drive on the high side when you have a lean instead of dropping the tab on the low side and let me know what you think.

I did that after you showed me that little trick and it caused my oil temp to climb on the low side.

R Addiction 07-28-2009 08:33 PM


Originally Posted by slboatdrinks (Post 2920197)
Hard to tell John, but the tab looks all the way up.......?


Set at 3.

R Addiction 07-28-2009 08:34 PM

I should have had them a little deeper on that run on the James!!:boat:

slboatdrinks 07-28-2009 08:38 PM


Originally Posted by boatfreak (Post 2920232)
I did that after you showed me that little trick and it caused my oil temp to climb on the low side.

Engine builder.....:party-smiley-004:

laszlo01 07-28-2009 09:19 PM

I like your train of thought, makes sense. It will be on the fine tuning list for sure.


QUOTE=ActiveThunder;2920052]Just for grins, next time you're out, trying raising the drive on the high side when you have a lean instead of dropping the tab on the low side and let me know what you think.[/QUOTE]

ICDEDPPL 08-03-2009 06:04 PM

Good thread! Being a new to boating I`ve been trying to figure out all the relationships between trim, tabs, etc.

Since day one the boat leans to the left so I have to have the left side set to about 4. the other side I keep at 0
This keeps the boat level but with lake Michigan chop anything over 40mph it keeps flying out of the water. using the trim to lower the bow kills speed and I`m sure eats more gas. Trimming up makes it even worse
This weekend I tried lowering both the tabs and that seemed to lower the bow for a smoother ride but not kill speed as much.. then using the trim didn`t seem to make too much difference..

Damn I got a lot to learn..

chuckbeecher 08-03-2009 06:53 PM


Originally Posted by ICDEDPPL (Post 2924049)
Good thread! Being a new to boating I`ve been trying to figure out all the relationships between trim, tabs, etc.

Since day one the boat leans to the left so I have to have the left side set to about 4. the other side I keep at 0
This keeps the boat level but with lake Michigan chop anything over 40mph it keeps flying out of the water. using the trim to lower the bow kills speed and I`m sure eats more gas. Trimming up makes it even worse
This weekend I tried lowering both the tabs and that seemed to lower the bow for a smoother ride but not kill speed as much.. then using the trim didn`t seem to make too much difference..

Damn I got a lot to learn..

If I read the above right :eek::eek:
you can get in BIG trouble having one down significantly and none on the other side.
I was always taught to have them both in the water ..then add more of one or the other.
if say "3" is level with bottom of boat(assuming "0' is all the way up) then have both at "3" then drop high side to "4" and low side more(deeper)

My Addiction 08-03-2009 07:46 PM


Originally Posted by R Addiction (Post 2920193)
And I got the big ones for my 25:grinser010:

280's? I got 380's on my 25, there's a little bit more going on out back though:coolcowboy:I only use em when the ol' lady starts crying, which isn't often


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