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Old 09 May 2005, 09:53   #11
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Stung into action by Boatster.

I have Bennett Sport tabs and swear by them.
In fact I cant imagine running my boat without them.
Not only do they give you roll and pitch control, but it is also great fun steering the boat by using only them (yaw).
Here is Bennetts download simulator:
http://www.bennetttrimtabs.com/
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Old 10 May 2005, 19:39   #12
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My last "ToP" on this subject:

I gather there aren't many UK ribbers that use trim tabs. I wonder why?
It seems over here in the US there are more boaters that have trim tabs than those that don't.

Boatster
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Old 10 May 2005, 20:06   #13
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I just noticed Jwalker uses trim tabs also:

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Old 10 May 2005, 22:57   #14
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Quote:
Originally Posted by boatster
My last "ToP" on this subject:

I gather there aren't many UK ribbers that use trim tabs. I wonder why?
It seems over here in the US there are more boaters that have trim tabs than those that don't.

Boatster
Could be RIBS don't need them as much - especially ones built for rough water with deeper v hulls???
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Old 11 May 2005, 03:16   #15
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We have a very basic form of auto trim tabs on Zebedee. Certainly makes it easier getting on the plane. Also help in a head sea !

Us
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Old 11 May 2005, 03:40   #16
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Quote:
Originally Posted by codprawn
Could be RIBS don't need them as much - especially ones built for rough water with deeper v hulls???
Not to press the issue but actually Jwalker has trim tabs and his boat is:
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX

Also Brian posted above:
Make: Scorpion Sports Crui
Length: 9m +
Engine: Ib/d Yanmar 300hp-di

I'm running an Avon Searider SR4 which is about as deep a hull as any other just length challenged.

I'm not trying to drive a point or an agenda but am curious why they aren't as popular for UK ribbers as I've noticed a significant jump in seaworthyness even with my automatic trim tabs.

I would really love to see what Jwalker has to say about trim tabs.

boatster
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Old 11 May 2005, 03:47   #17
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Quote:
Originally Posted by boatster
I'm not trying to drive a point or an agenda but am curious why they aren't as popular for UK ribbers as I've noticed a significant jump in seaworthyness even with my automatic trim tabs. boatster
Never really felt that a well balanced rib between 5 and 6.5m needed them. On ribs in this range, trimming the outboard will have the desired effect of helping to hold the bows down when going into a head sea or getting a heavily laden dive boat up onto the plane.

Its another cost and something else to go wrong. Given the choice I would rather have a second VHF or GPS for the money.

Peter
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Old 11 May 2005, 07:07   #18
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Cant help feeling that Pete7 has touched upon a couple of good points here.
In the US, the entry-level cost to ribbing is considerably higher than in the UK. Hence some, having scraped together enough money to get themselves waterborne, one cant necessarily go the extra mile initially by investing in trim tabs.
When you do get some cash together, the tabs come quite low down the priority list, with VHF, hand helds, plotters etc. assuming greater perceived importance.
Added to that is the fact that if you haven't got a VHF, you cant make a call. If you dont have tabs, "well, we will get round it somehow and does it make much diference anyway, does it?" tends to be the attitude.
As you say, once you have them and use them, then they become very important. They just dont seem that way when you are starting out.
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Old 11 May 2005, 07:21   #19
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Quote:
Originally Posted by boatster
Not to press the issue ......
....I would really love to see what Jwalker has to say about trim tabs.

Fekk, you're persistent.

Right, boats list into the wind. I reckoned a cabin would make this consideably worse so I fitted tabs. The reason listing is a pain is that the boat will land on that side of the hull and it will be virtually flat to the water and, consequently, a very hard landing. It also allows fore and aft trimming whilst still keeping the angle of the drive correct for the hull. I have heard stories of being able to drive the bow right down to an almost dangerous extent... on my boat you can't.

Happy now?
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Old 11 May 2005, 13:22   #20
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Persistent indeed!!!

I agree that considering all the other necessities trim tabs could be percieved as doelfins or some "enhancing" part of a setup (unnecessary). I can say from my experience that they are actually quite necessary, at least for me.

I will now unceremoniously let this thread die!!
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