Nautic star 21' tunnel trim tab pictures needed & help.

[juicegoose]

I have a NS 2110 tunnel and bought some trim tabs recently for those choppy BL days. Last night I went to setup the location and realized two things.
1. Mounting them in the preferred location(as per lenco) will require me to twist the upper mounting bracket. I can land the actuator naturally but the bracket has to rotate as you can see in the pictures.
2. My hull has a reverse angle to the lower transom line limiting my use of available mounting surface. I'm either going to need to place them in the location shown towards the outside of the hull or all the way in towards the tunnel. Lenco says don't do this and doing so would not allow me to mount my depthfinder transducer or power pole bracket.

Can anyone send me some pictures of a 21' nautic star with trim tabs installed.

Also what do you guys think of rotating the position of the mounting bracket?

[keakar]

go to any metal fab repair shop and have them bend two heavy duty aluminum brackets for you that will fit onto the curved hull and give you a flat mounting surface for the piston to mount to.

I have to ask, why in the world is your boat hull sitting so close to your trailer frame? you should raise it up more to have a good 3" space there. stuff happens and if you ever had a board bracket give way you need a little space to drop before it hits metal so the other brackets can hopefully hold it from hitting metal.

question two is, what in the world is that little round thingy that appears to have been painted over at some point and looks to be leaking water or something based on the hull coloration under it? is it a light or something?

my last suggestion is the back of the transom looks ROUGH very rough so I would suggest you clean it all up and seal all those little holes (above and below waterline) and give it a fresh coat of paint to make it look as good as the rest of the boat.

[juicegoose]

Lots of questions allow me to answer
1. Im assuming the closeness you speak of is in regard to the outside edge. Thats an optical illusion. Its further from metal then you think.
2. That hole is a drain for self bailing hull.
3. The paint is bottom antifouling paint. Put on by previous owner. It stains and generally looks like poo but you dont see it in the water. I could have it repainted but it isnt worth it.

[keakar]

1. ok, it looks like its sitting right on it.
2. ok, I wasn't sure what I was looking at.
3. yep, looks likes a kids watercolor experiment went wrong lol.

[kb7722]

I would guess that these day this is a problem on many of the newer model boats. So it is surprising to me that Lenco uses double clevis joints on each end of the actuator. You have no choice but to mount the actuator on a compound angle. So when the tab moves through the range of motion, it is going to want to bind at the clevis joints. There is probably enough give in the joint so that it doesn't bind, but it is very poor engineering. There should be a ball joint on each end. Lenco has been around a while and seem to be an industry leader; so I guess given the infrequent use and small range of movement that it works ok.

[speck25]

maybe these will help

[juicegoose]

Thanks speck that helps me wish more that i didnt have bottom paint. My tabs are 12" wide and with the tunnel i couldnt mount them like you did.

[keakar]

couldn't you fit them just on the inside edge almost touching the eyelet where its flat?

moving in that 4 or 5 inches should still give the clearance you need for PP

[Natural Light Kid]

Would giving me the power pole help you in any way?

[juicegoose]

Yup come get it!!