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 Post subject: Your thoughs on layup
PostPosted: Fri Sep 19, 2008 2:49 pm 
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Joined: Mon Sep 02, 2002 1:00 am
Posts: 477
Location: Teahupo'o, Tahiti
Hi Guys

What do you think of the layup below, it will be for a speed board so I would like it to be a lot stiffer than say a freestyle board. I was thinking of adding another layer 290g glass to top layer and maybe even the bottom layer, oz measurements are a ruff estimate. I'm using a poured epoxy (Ampreg 22) rail, not going to lap this board don't have the time or skill......just yet :) . Weight is not really that big an issue with this type of board more of an issue would be where weight is placed and for that I will be implementing an accessory rail system that would allow for extra weight or camera/GPS that sort of thing.


Board Length 150x33

Top

Glass 106g/4oz
Carbon 196g/7oz
Footpad reinforcement Glass 290g/10oz
Carbon 196/07z strip reinforcement over inserts/fins
Glass 290g/10oz

Core AIREX C70-55 12mm shaped to 8mm poured rail

Glass 290g/10oz
Carbon 196g/7oz
Glass 106g/4oz

Bottom

Board Length 150x33

Top

Glass 106g/4oz
Carbon 196g/7oz
Footpad reinforcement Glass 290g/10oz
Carbon 196/70z strip reinforcement inserts/fins
Glass 290g/10oz

Core AIREX C70-55 12mm shaped to 8mm poured rail

Glass 290g/10oz
Carbon 196g/7oz
Glass 106g/4oz

Bottom


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 Post subject: Re: Your thoughs on layup
PostPosted: Fri Sep 19, 2008 7:32 pm 
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Joined: Wed Aug 09, 2006 3:20 am
Posts: 26
that's quite a lot of fibre, especially the carbon, are they uni's/cloth/biaxial? In my experience a speed board wants to be more flexy than a freestyle board. When I first started building speed boards I went really stiff, then was emailing the guys who make xcelerator speed boards and they said a flexy board was faster, so I tried that and it seemed to work, definitly better in chop, makes a smoother board through chop, so you can hold your edge better and put more force through the board, making you faster. Think that's the theory anyway :-?

Hope that helps


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 Post subject: Re: Your thoughs on layup
PostPosted: Fri Sep 19, 2008 8:47 pm 
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Joined: Mon Sep 02, 2002 1:00 am
Posts: 477
Location: Teahupo'o, Tahiti
The more flex the better it will handle the chop well thats the theroy anyway, the stiffer the flatter the water can be . I suppose I should make one up and see what type of Flex it has and work from there. You never going to have one board that suits all conditions I suppose.


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