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Old 04 June 2008, 18:00   #11
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Country: UK - England
Town: STOKE
Boat name: Humma
Make: Humber Destoyer 5.5
Length: 5m +
Engine: Out b 75 hp Marriner
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console position

I take the 500 stands for 5 metre rib ?
I have a 4 metre Narwall,I fitted under console stainless petrol tank,but in proportion was farther forward than your Brig,still had some problems with nose coming up when moving off,fitted trim tabs that preety much sorted it out and made more stable in rough conditions.
Stuart
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Old 04 June 2008, 18:17   #12
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Country: UK - N Ireland
Town: Cushendall
Boat name: JanJack /
Make: RedbayBoats / Brig
Length: 8m +
Engine: Yanmar 300 / etec 50
Join Date: Mar 2008
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Thanks for all your feedback and suggestions guys, keep it coming
Yea jockey seat is a must as the bench seat provides little support and you can't stand up with it but I will leave it in for when other people come out on the calmer days.

@Pete7 I have tried it out and found it to be bow light, but do you think moving the console a metre or so forward and moving the fuel tank will affect the balance enough to do without ballast?

Yea my parents used to have an osprey sparrowhawk that they used for diving around Ireland and it was a terrific boat aswell.

@stul Was it actual trim tabs you fitted or hydrofoils on the cavitation plate? Which one do you guys think is better - bearing in mind how expensive trim tabs are?

Regards

Conor

Also if you could please help me out, I've started a thread entitled securing console/seat to the deck. If you have a chance check it out and give me a few pointers - http://rib.net/forum/showthread.php?t=24880
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Old 05 June 2008, 04:49   #13
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Conor, I would move the console and fuel tank first then take it out with a heavy weight and move it about the boat to see the effect. An old 56lb shot weight should do nicely, but you may find the console and therefore the drivers weight enough. Trial and error I think.

Pete
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Old 05 June 2008, 05:05   #14
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Country: UK - England
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I can vouch also for trim tabs on my 4m Avon, was much for stable in the big stuff and controlled the nose going to high a bit more -
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Old 06 June 2008, 03:17   #15
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Country: UK - N Ireland
Town: Cushendall
Boat name: JanJack /
Make: RedbayBoats / Brig
Length: 8m +
Engine: Yanmar 300 / etec 50
Join Date: Mar 2008
Posts: 81
What trim tabs did you guys use and how much were they? I don't fancy spending too much so I thought maybe I would just fit hyrdrofoils/doel fins What do you guys think about using these on a small rib?

Regards

Conor
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