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Old 18 August 2006, 13:22   #1
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Trim Tab

My 8.5 hangs a little to the left when under way. Motor is rigged offset ok, and if I trim to the limit I can get it nearly level, but this is not suitable for some sea states. I've tried 80 litres of ballast too, forward on the rhs next to console, which also works, but is not the best solution. The hull is an excellent performer, and I wondered about putting a single tab on the transom to correct the tilt. I assume its prop torque thats causing it from the single 275?

Your views folks if you please
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Old 18 August 2006, 13:23   #2
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Should also say, layout is not the fault either.
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Old 18 August 2006, 20:49   #3
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You could put a single tab on but you would be better off with 2. I have bought the new Volvo QL interceptor type tabs - cheaper than conventional tabs and a lot less to go wrong or get damaged.

You can order them from most Volvo dealers but they have usually never heard of them so you have to nag. Going price is about 350 per pair. You want the wider ones.

http://www.foreandaftmarine.com/VO-QL3841717.htm
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Old 19 August 2006, 04:21   #4
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Quote:
Originally Posted by codprawn
You could put a single tab on but you would be better off with 2. I have bought the new Volvo QL interceptor type tabs - cheaper than conventional tabs and a lot less to go wrong or get damaged.

You can order them from most Volvo dealers but they have usually never heard of them so you have to nag. Going price is about 350 per pair. You want the wider ones.

http://www.foreandaftmarine.com/VO-QL3841717.htm
Have you fitted them Codders and do they work ?
Because if you have I would be very interested in how they perform and where I can buy them from I think they would be ideal for my boat
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Old 19 August 2006, 06:21   #5
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Quote:
Originally Posted by Bigmuz7
My 8.5 hangs a little to the left when under way. Motor is rigged offset ok, and if I trim to the limit I can get it nearly level, but this is not suitable for some sea states. I've tried 80 litres of ballast too, forward on the rhs next to console, which also works, but is not the best solution. The hull is an excellent performer, and I wondered about putting a single tab on the transom to correct the tilt. I assume its prop torque thats causing it from the single 275?

Your views folks if you please
The other thing that influences lean is the prop you are using - try and borrow a prop of the same pitch wut with a slightly smaller diameter - it might bring the revs up a bit but could sort your problem out! Either that or a different model of prop.
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Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
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Old 19 August 2006, 13:02   #6
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Quote:
Originally Posted by Milan
Have you fitted them Codders and do they work ?
Because if you have I would be very interested in how they perform and where I can buy them from I think they would be ideal for my boat
I haven't fitted them yet - will be doing so soon - along with a load of other jobs!!! They are supposed to be very easy to fit and very effective - lots of fast cat ferries etc use similar designs.
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