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Old 06 October 2005, 07:44   #11
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Country: Belgium
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Make: BWM RAPIER
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i suppose this will be the right thread - trim tabs Richard - dont go to bed without them

These are the automatic ones - and there are twin actuators per tab. They are currently set at 27 degress - but can go to 35 . Believe you me son, its light night and day...

Jonathan
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Old 06 October 2005, 10:38   #12
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I thought trim tabs were supposed to follow the shape of the V but others say not - is there a definitie answer on this???
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Old 06 October 2005, 11:37   #13
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Quote:
Originally Posted by codprawn
I thought trim tabs were supposed to follow the shape of the V but others say not - is there a definitie answer on this???
I dont think it makes much difference---- except that you are looking for the
most effect- whether its in the V or not ( stand to be corrected on this)

In my case due to two engines and a relative small width - I had to put them at exremities and to assure they were always submerged.Anyway they work very well./ www.nauticusinc.com/ ask for john. price 250-270us$ FOB us port.

jonathan
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Old 06 October 2005, 13:40   #14
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Quote:
Originally Posted by eupa
i suppose this will be the right thread - trim tabs Richard - dont go to bed without them

These are the automatic ones - and there are twin actuators per tab. They are currently set at 27 degress - but can go to 35 . Believe you me son, its light night and day...

Jonathan
Hi Eupa, interesting photo of your rig. I'm intrigued by the attitude of both tabs. If they're automatic, why is one up and one a little down? Does this reflect the last setting whilst in action in the water? I assume they move when a suitable thrust more than equal to the hydraulic resistance is placed on the tab by water pressure, such as in a hard turn. the tab will resist at first and then start to give? I would have thought that they would both return to fully down when water pressue removed.

Thanks in anticipation of your reply.
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Old 06 October 2005, 15:20   #15
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Country: Belgium
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Quote:
Originally Posted by hard1
Hi Eupa, interesting photo of your rig. I'm intrigued by the attitude of both tabs. If they're automatic, why is one up and one a little down? Does this reflect the last setting whilst in action in the water? I assume they move when a suitable thrust more than equal to the hydraulic resistance is placed on the tab by water pressure, such as in a hard turn. the tab will resist at first and then start to give? I would have thought that they would both return to fully down when water pressue removed.

Thanks in anticipation of your reply.
Sorry my fault - i was testing them for freedon .. just before I took the photo
and pushed them up - the dampers take a little time to push down - and the boat is not square on the trailer.

jonathan
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Old 06 October 2005, 18:30   #16
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Thanks - my mind is now at rest. (At least over Smart Tabs!)
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Old 07 October 2005, 06:09   #17
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eupa,


we had a set of the auto tabs on our one .. great things.. great fun in a following sea , really had to keep the power on in following sea to stop the nose dropping very fast.

do you have anodes on the plates ??? i hadnt and the ball joints corroded, failed and popped out.

p
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Old 07 October 2005, 10:22   #18
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do you have anodes on the plates ??? i hadnt and the ball joints corroded, failed and popped out.

No - did not cross my mind.. Now that you bring it up wll have to look into it.
I remember vaguely Nauticus saying somethng about this .. but did'nt give it miuch credence. A bit of zinc wont hurt i suppose!!!.

How many degrees to the plane have you set yours to??. The following sea is
great fun. I am really surprised people dont fit them more . For me-- the best part is the stability at high knots-- literally hands off. The trim surface on an
ob is pathetically small.

jonathan
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Old 09 October 2005, 13:13   #19
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Need a little extra weight up front? Don't forget Mrs Hightower! It's her speciality, you also get a little dredging done if required at no extra cost.
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Old 29 October 2005, 10:43   #20
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what will happen when i get a little airborne and i have a 500 lbs engine hangin off the back of a 5.85? and if i get smart tabs will i even get the engine out of the water?
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