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Author Topic:   Anyone have trim tabs on newer OR 18
hugehugo posted 08-03-2003 09:55 PM ET (US)   Profile for hugehugo   Send Email to hugehugo  
I am considering trim tabs on my 99 OR 18 and am wondering if they will interfere with the swim ladder. I understand that the factory used a 9X9 Bennett. I don't see this in the Bennett product info, but I do see a 9X9 available from Lenco. Any advice would be appreciated.
JohnJ80 posted 08-06-2003 09:15 PM ET (US)     Profile for JohnJ80  Send Email to JohnJ80     
I guess the first question is what problem are your trying to solve?


Neilwjo posted 08-07-2003 02:03 PM ET (US)     Profile for Neilwjo  Send Email to Neilwjo     
I have a 2000 18 ft. Outrage with Bennet tabs. I haven't measured them but would guess they're about 9x9. They don't interfere with the ladder at all.
JohnJ80 posted 08-07-2003 09:10 PM ET (US)     Profile for JohnJ80  Send Email to JohnJ80     
I have been talking to the trim tab guys. They recommend at least a 12" wide tab for small boats like my 15'. I would think the 9x9s are too small for your boat for sure. From what I am told, the biggest tab you can use is the right one. Larger is better and more efficient than small.

The Lenco's personally appeal to me more than the Bennetts just because I think the installation is easier and you don't need to do the hydraulic thing. I know others swear by Bennetts and I know they have great customer service, but I like the idea of electrics better. I like the idea of a wire to each cylinder and that is it - no pump, no tubing etc...


Swellmonster posted 08-08-2003 06:41 AM ET (US)     Profile for Swellmonster  Send Email to Swellmonster     
My bennets are approx 8X9.5 on my 1998 20 OR.
Night and day difference with performance, handling, leveling. No issues with my factory swim ladder, I could even go larger....
If I had a canoe, I would install them on it ;)
13_Dauntless posted 08-08-2003 11:47 AM ET (US)     Profile for 13_Dauntless  Send Email to 13_Dauntless     

My name is Christian, and I work for Bennett Marine. I was reading the forum (I own a 13) and saw your post.

The reason that you don't see 9 x 9 trim tabs listed in our product information is because they are not a standard Bennett size. We manufacture the 9 x 9's specifically for Whaler, and they are used on several models.

I've spoken to several 18 OR owners who have installed our M80 Sport Tabs (8 x 10 inch). The would be a excellent alternative to the factory installed trim tabs as overall size of the is nearly identical to the Whaler 9 x 9. Based on the feedback I've heard from other 18 OR owners, the M80 would be a great choice for your boat, although my opinion may be a bit biased!

JohnJ80 posted 08-08-2003 05:13 PM ET (US)     Profile for JohnJ80  Send Email to JohnJ80     
I have been contemplating putting tabs on my Dauntless 15 because I boat on a large body of water with large boat wakes and I have noticed that the trim angle (boat to water) makes a large difference when i hit one.

SwellMonster and 13_Dauntless, you guys sound sold on them. What do you think about on a small boat?


Swellmonster posted 08-08-2003 10:19 PM ET (US)     Profile for Swellmonster  Send Email to Swellmonster     
13's beat you to death in a chop, but they are a lot of fun. They would have to make a great difference in the ride plus keeping the boat level. You know, when the cooler on the left side is so full of ice and the boats leans...
Id put em on a surfboard!!
Lagged posted 08-08-2003 11:38 PM ET (US)     Profile for Lagged  Send Email to Lagged     
13' with trim tabs? It has bene done!

Sorry Bennet, you guys are great - but I think hydolics are over kill on a 13, so I went with Lenco. I had to move the swim platform up a bit, and it was glued on with 5200, so most of the time was spent with a Razor blade.

They really improve the ride and hole shot facing 2 - 3 foot chop is not uncommon and now I can slice thru it the best you can with a 13 foot boat. Leveling out the boat is a big plus too, I use this much more then I thought I would.

13_Dauntless posted 08-11-2003 10:01 AM ET (US)     Profile for 13_Dauntless  Send Email to 13_Dauntless     

I think that adding tabs to the 15 could help to really smooth out the ride in a chop. This is because you can use the tabs to hold the sharper part of the vee down into the waves to better slice through them, while using the power trim to trim tab prop for the best efficiency.

Another thing to consider is this: Because of the small size and light weight of small boats, they are typically more affected by sea conditions and weight distribution than larger, heavier boats.

Again, I work for Bennett, so my opinion may be a bit biased, but based on what I have seen, and the feedback I've gotten many small boat owners, I think that tabs could help to really enhance the performance of your 15.

JohnJ80 posted 08-11-2003 12:44 PM ET (US)     Profile for JohnJ80  Send Email to JohnJ80     
OK, next question -

There is supposedly only wood on one side of the transom in a Dauntless 15. Does this mean that you have to thru bold the actuators or dig out the foam and replace with epoxy? Or can you just screw them into the transom and just drill the hole for the control (either electrical or hydraulic)?

the forces on the screws should be a shear force so there really isn't any need to have a solid wood backed screw hole if there is enough thickness in the fiberglass. It sure seems solid enough if you rap on the transom.

Comments anyone? I would love to hear what you all have done. I am seriously going to look at the tab thing again and review he Bennett vs Lenco comparison. I'll probably do it since this sounds like it could really improve the ride.

If you guys think this installation is easy, then I'm off to the catalogs.

I have to keep my boat trimmed in almost all the time just because of the boat wakes we get on the weekends even though trimming out makes the steering easier to turn and you can hear the motor free up. If the bow comes up too much, the pounding gets bad fast.


13_Dauntless posted 08-11-2003 04:51 PM ET (US)     Profile for 13_Dauntless  Send Email to 13_Dauntless     

The lack of wood in the transom isn't really a concern. Stainless self tapping screws--when combined with a marine adheseve/sealant, such as 5200--really bite into the glass and hold very well. As you already noted, the forces are in shear, so the force upon the trim tabs won't try and pull the screws out of the transom.

Trim tab installation is fairly easy. Drop me an email and I'll send you an Installation Video (VHS) so you can get an idea of what would be involved in installing trim tabs on your boat.

Christian Redditt
Bennett Marine

JohnJ80 posted 08-11-2003 05:14 PM ET (US)     Profile for JohnJ80  Send Email to JohnJ80     
Thanks Christian,

I'm not worried about doing the installation, I was just concerned about the relative strength of the transom.

If you don't think this is a problem, that is good enough for me. i just wanted to hear it from someone who has experience drilling Whaler transoms for trim tabs. I didn't think it would be an issue, but it never hurts to ask.

I'm thinking that this may be the ticket. I'm going to order up some here this week and then pull the boat next week and have at it. I'll post here what the results are.

I think my choices that would be best on my Dauntless 15 are either the Bennett M80 (8"x10") or the Lenco 9x9's. Both companies recommend going larger to 12" if possible, but it would just seem to be disproportionate on the transom. Do you have a comment on that? How much of a difference is there between a 8-9" tab and a 12" tab?


13_Dauntless posted 08-12-2003 09:18 AM ET (US)     Profile for 13_Dauntless  Send Email to 13_Dauntless     

I think that the M80 would be a good size trim tab for your boat. Because of te Drop Fins on each side of the the M80, water that would normally escape out the side of the trim tab is channeled aft, which creates more lift. This allows the M80 to perform like a larger trim tab, while only taking up 8" of transom width.

While you could go to a larger 12" x 9" size, it would likely offer no noticeable increase in performance for your 15, and would require more space on the transom.

Christian Redditt
Bennett Marine

hugehugo posted 08-12-2003 10:06 PM ET (US)     Profile for hugehugo  Send Email to hugehugo     
Thanks for the tips. One thing I would be interested in is how much of an effect the tabs could have on trolling speed. My current speed is over 3mph and I would like to slow down to 2.5. Would the tabs have an effect in the fully down position?
13_Dauntless posted 08-13-2003 08:23 AM ET (US)     Profile for 13_Dauntless  Send Email to 13_Dauntless     

Trim tabs deflect about 20 degrees when fully down, which isn't really enough to affect trolling speed at all.

Christian Redditt
Bennett Marine

Swellmonster posted 08-14-2003 03:19 PM ET (US)     Profile for Swellmonster  Send Email to Swellmonster     
Tab it!!
Cant wait for your sea trial report!

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