Hydraulic or Electric trim tabs on ribs? Anybody using them? - Page 4

ollyit · 26 August 2005, 10:32

hope so mate, does the positioning look alright?

eupa · 26 August 2005, 11:16

boatser.

Have a talk with John at Nauticus- he advised me pretty well on my boat
- I have a 29 footer and weight is 2300kgs. The ones you adjust -from what people have told me seem to be a pain to say the very least. Nauticus have a
a new range out - and they sent me the correct ones for my boat- which are in fact 2 activators /tab. Results are pretty good - have done about 42 knts ( not 52 jonny fuller - my mistake) in a 5/6 and the plain is constant. The cost was about 260$ FOB tampa- and you can get them direct from Nauticus

jonathan

Nos4r2 · 26 August 2005, 14:50

Olly where did you get smart tabs in the UK?

ollyit · 26 August 2005, 15:40

I was kindly given them, had a to buy some new actuators and couple of parts, do you want the address of a place that sells them?

Nos4r2 · 26 August 2005, 18:08

Yes please if you know of one!

boatster_sr4 · 26 August 2005, 18:14

Quote:

Originally Posted by eupa

boatser.

Have a talk with John at Nauticus- he advised me pretty well on my boat
- I have a 29 footer and weight is 2300kgs. The ones you adjust -from what people have told me seem to be a pain to say the very least. Nauticus have a
a new range out - and they sent me the correct ones for my boat- which are in fact 2 activators /tab. Results are pretty good - have done about 42 knts ( not 52 jonny fuller - my mistake) in a 5/6 and the plain is constant. The cost was about 260$ FOB tampa- and you can get them direct from Nauticus

jonathan

Hi Eupa,

I have in fact reinstalled my Nauticus tabs. I prefer them over the Lencos for sure.

Ollyit,

your setup looks exactly like mine. Everthing looks good.

ollyit · 26 August 2005, 20:36

Quote:

Originally Posted by Nos4r2

Yes please if you know of one!

Streamlined Propellers
Unit 17 Cavendist Mews,
Off Grosvenor
Aldrshot Hants
GU113EH United Kingdom

01252 -316-412

Mollers · 27 August 2005, 19:06

I've had trim tabs on bigger hard boats and as far as I'm concerned they correct trim, as the name implies. On a larger boat where the load (people usually) might be unevenly distributed( sat to one side chatting) a trim inbalance can be corrected using the tabs. This does though create drag, hence I'm no fan of the things. There is the argument that they give effective extra hull length for speed. Not convinced on that one. As for correcting handling problems. I would look more at engine/boat set up.

eupa · 27 August 2005, 19:33

hi mollunum,

We ( boastser and myself) are in fact talking about the "automatic" ones made by Nauticus in the states( www.nauticusinc.com)- i fitted them becasue I could never get a decent trim on the boat- and its simple to see why. I have 29' of boat with 420 kgs sitting on the back and a cabin in the middle. the total weight of the boat is 2300 kgs- there is no way that you can trim that out to give you a decent ride- with the engines alone. The engine trim area is miniscule

Fitting automatic trim tabs -they adjust themselves whilst moving ,serves two purposes
- it lifts the stern up
- at a certain speed they cease to act as lift and become stablizers. Drag does not seem to come into it

Its like a Boeing - these are the identical to the horizontal stablizer and act in exactly the same way - but havnt seen a Boeing on the water yet???????

Jonathan

boatster_sr4 · 29 August 2005, 01:03

I have to agree with Eupa,

I have noticed a real improvement in not only the ride of my boat but also the fuel economy. Although the Nauticus tabs seem like the "conventional" trim tabs they are anything but that in operation.

bogib · 29 August 2005, 01:13

Boeing did manufacture sea planes.............

Bogi

Nos4r2 · 29 August 2005, 10:16

Quote:

Originally Posted by ollyit

Streamlined Propellers
Unit 17 Cavendist Mews,
Off Grosvenor
Aldrshot Hants
GU113EH United Kingdom

01252 -316-412

Cheers Olly-btw, have a look at my last build post. I did something you might find useful.

IanE · 29 August 2005, 23:08

Having added 8 1/2 stone of diesel auxiliary to the ar*e end ,I found the Bow needed to be trimmed down (to the limit of power trim when only 1 on board)
Smart Tabs work perfectly ... handling improved ... planes at lower speed ... top speed up

Simple to install (about an hour)
at the moment 10/10

Ian

Chopppywaters · 09 September 2005, 02:16

is it safe to drill into ur transom?

Richard B · 09 September 2005, 07:13

Quote:

Originally Posted by Chopppywaters

is it safe to drill into ur transom?

No, it certainly isn't!

Always use velcro to attach the engine.

eupa · 09 September 2005, 07:38

your are talking about 8 * 5mm diameter self -tapping 20mm screws for each plate + 2 for the activator holder. Dont.know about Dicky's-B transom but mine is at least 350mm thick. If it can stand up to my appallinng sea manship and 420 kgs of engine- I can aassure you the transom can take it.
My boat is out on the trailer next week and will post some pics of the tabs.
If you cannot get a decent trim then go tabs and go Nauticus. Very serious people.

The effect is satrtling - you push the throttle foreward the bow comes up and you then see it coming down.

Jonathan

Richard B · 09 September 2005, 07:51

For "yooper": http://en.wikipedia.org/wiki/Irony

eupa · 09 September 2005, 09:13

Quote:

Originally Posted by Richard B

No, it certainly isn't!

Always use velcro to attach the engine.

Richard - many thanks - but my concern is that somebody - lets say that
mind of info from wales might take you seriousely.....

I once told somebody - that they would die in 6 months .. low and behold he did....
Dicky, the irony of the fact is when do you take people seriousely on this site???
In Belgium I have to be extemely careful of what I say- either I am too direct and it upsets a lot of people - or I crack a typical english joke and they havnt a clue....

sincerely
jonathan

codprawn · 09 September 2005, 13:09

Quote:

Originally Posted by eupa

Richard - many thanks - but my concern is that somebody - lets say that
mind of info from wales might take you seriousely.....

I once told somebody - that they would die in 6 months .. low and behold he did....

sincerely
jonathan

Well doesn't everyone use velcro - it does have lots of uses......

By the way - are you sure it is Belgium you live in and not one of it's former colonies - like the Congo???

The Garfish · 09 September 2005, 14:02

Quote:

Originally Posted by codprawn

are you sure it is Belgium you live in and not one of it's former colonies - like the Congo???

cairful codsporn. yoopers reel naim iz blakk jakk schram.

Quote:

Originally Posted by eupa

In Belgium...... I crack a typical english joke and they havnt a clue..

neiver av wee jakk

gArf