Trim tab fitting position.

[gyislander]

Hi, back again with another trim tab question (last one was about oversizing). The lenco set up I got mega cheap has 18x12 tabs which I was advised in the last post would be fine but which I now know will need cut down.
My issue is that the transom on my fairline weekender curves so I can only see 2 options for locating the tabs (cut down to 12x12) The outer position pictured would still require slight spacing blocks to fit flat. Which option would you recommend?

 

[gyislander]

 

[tico]

spot on! Outer position. (edited as the second photo wasn't visible earlier)

 

[sc25 Sweden]

Outer position - more effect

 

[stelican]

In a previous life fitted many in outside position as per the builders

 

[gyislander]

In a previous life fitted many in outside position as per the builders

How did you level out the curve ?

 

[gyislander]

spot on! Outer position. (edited as the second photo wasn't visible earlier)

Outer position - more effect

Outer was my thinking for optimum effect its just working out how to fill the gap , about 0 to 5mm over outer 50mm.

 

[kashurst]

I would use epoxy filler. Sand area back to gelcoat, fill out proud and shape it back to give a flat surface for the trim tabs. Blend the upper edge into the transom.
Wood bits will swell and rot pretty quickly.

 

[stelican]

How did you level out the curve ?

Been trying to remember but 40yrs have passed.
I will put a post on the Fairline forum see if anyone remembers

 

[gyislander]

Got some blocks of hard nylon from my marina which I'll try and cut into a suitable wedge.

 

[stelican]

I ha e looked closely at photos and

Got some blocks of hard nylon from my marina which I'll try and cut into a suitable wedge.

Standard fit 9x12 Bennetts
That's'why I couldn't recall fairing blocks!

 

[gyislander]

I ha e looked closely at photos and

Standard fit 9x12 Bennetts
That's'why I couldn't recall fairing blocks!

Is that not still 12 on the transom and 9 deep though ?

 

[QBhoy]

View attachment 129238View attachment 129240

I presume that’s not the original outdrive? Someone has installed that way too low. Does she handle ok like that ?

 

[gyislander]

I presume that’s not the original outdrive? Someone has installed that way too low. Does she handle ok like that ?

An interesting view. Drive and engine were fitted in 2005 by a Volvo specialist so I'd have thought they knew what they were doing. Engine is a D3 160 , tons of room in the engine bay though not height wise or at the rear. (I did a recent post about only being able to see the trim sender hole with a scope !) Boat handles fine.

 

[PCUK]

Got some blocks of hard nylon from my marina which I'll try and cut into a suitable wedge.

Make sure it is water resistant or it will swell.

 

[QBhoy]

An interesting view. Drive and engine were fitted in 2005 by a Volvo specialist so I'd have thought they knew what they were doing. Engine is a D3 160 , tons of room in the engine bay though not height wise or at the rear. (I did a recent post about only being able to see the trim sender hole with a scope !) Boat handles fine.

Looks like a great upgrade package for a lovely classic boat. Excellent to see. Yeah…just thought it looked a little low installed there. The AV plate on the outdrive looks like it might be running a fair bit below the lower line of the hull perhaps.

 

[gyislander]

Looks like a great upgrade package for a lovely classic boat. Excellent to see. Yeah…just thought it looked a little low installed there. The AV plate on the outdrive looks like it might be running a fair bit below the lower line of the hull perhaps.

Maybe a clearer shot.

 

[QBhoy]

Maybe a clearer shot.

to be honest, it doesn't look too terrible there, to be fair. I initially thought the av plate above the prop may have sat way below the lower hull...looks like it may just be ok there, when imagined in its lower position.

 

[gyislander]

to be honest, it doesn't look too terrible there, to be fair. I initially thought the av plate above the prop may have sat way below the lower hull...looks like it may just be ok there, when imagined in its lower position.

Probably looked bad due to the angle, trailer is blocked high at the front just now.