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Old 30 March 2010, 16:20   #1
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Transom thickness

How thick is your transom.
I was thinking for a 5.5 mtr rib
12mm grp with 2" marine plywood sandwiched onto the transom thus making
approx 14mm grp 2" ply and another 6 layers of csm and woven roven .

And carry the additional grp one meter down the hull

Any comments ar welcome.
I would rather go over the top than not enough.
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Old 30 March 2010, 18:04   #2
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Have you got that in your living room .. or do you run a massage parlour ? (for rib owners)
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Old 30 March 2010, 19:24   #3
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Have you got that in your living room .. or do you run a massage parlour ? (for rib owners)
Its a Northern massage parlour... outdoors.
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Old 31 March 2010, 03:48   #4
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don't make it so think that you can't get the lugs on the outboard over it, and well done for avin a go!
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Old 31 March 2010, 04:27   #5
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From memory, mine is overall about 48mm thick - rated to 110Kg / 60Hp. Again from memory when I took the old trunks out it was Gel - glass (approx 2mm) ply (remainder) - Glass (approx 2mm) - gel (not counting the multiple layers of antifoul!)

Friend's 5.3 Ribcraft I can't quite get my Aux clamp over his, rated for something like 90 & goodness knows how many KG. Needless to say I've never bored a hole in it!

I guess a good start is to find an engine & measure the clamps.
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Old 31 March 2010, 05:18   #6
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the one I have just done for my 5.4SR is 52mm of ply and it is not looking too thick or looking like it is going to move.
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Old 31 March 2010, 06:22   #7
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Have you got that in your living room .. or do you run a massage parlour ? (for rib owners)
Its one of those Swedish outdoor things.
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Old 31 March 2010, 06:29   #8
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don't make it so think that you can't get the lugs on the outboard over it, and well done for avin a go!
Many thanks for the advise.

I have as you can see had the lipping for the top of the Transom facing inwards.
but can cut it to fit the finished thickness when done.

I have managed to pop the hull from the mould today but will have to wait for a few hands to lift it out.
I released it with Hot soapy water tipping it between the tube lip and the mould.

It near on floated away..
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Old 31 March 2010, 06:33   #9
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I'd leave the hull in the mould till you have the ribs and stringers fitted and maybe the deck, no chance of any flex then.
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Old 31 March 2010, 07:23   #10
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I'd leave the hull in the mould till you have the ribs and stringers fitted and maybe the deck, no chance of any flex then.
very sound advice
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