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[quote=Edchris177]Andre, is it not better/cheaper/lighter/stronger to borrow aircraft technology & utilize a couple of ribs/stringers to give support vs thick enough glass?
When I was looking for a T, the decks seemed to be 1/4" ply, supported by a stringer every 16" or so. It would be VERY easy to make them using thin cardboard,(that's what Nacra used) wetted then overlayed with cloth. 
Wet cardboard, fold into a "T" shape, with the vertical leg of the "T" a fold upon itself. You have then essentially built a structural beam, with a wide flange for the deck to rest on. If you now visualize the beam lengthways, you leave 4" extra of cardboard at each end. The extra can be folded 90* & serve to tab the beam to the inside of the hull. This can be done with the vertical leg of the "T", and the "arms".
Here are a couple of photos of an N5.2 hull. They used cardboard tubes to give rigidity. The actual decks are pretty thin.
[img]http://www.thebeachcats.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=82860&g2_serialNumber=4[/img].
[img]http://www.thebeachcats.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=82854&g2_serialNumber=4[/img]<em>Edited by Edchris177 on Sep 13, 2014 - 04:34 PM.</em> [/quote]

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