I'm no expert on this, I just pick bits and pieces up along the way - I'm sure there are designers/builders on the list who know more then me. I'd like to hear from them myself on these issues. but from what I gather the 'h' join is out of favour here - relatively weak, prone to leaks if not done well etc. (???) outside seam is a strip of tape (of what ?) glassed along the hull on the outside - inside is usually standard. Extra strength is the reason, although one boat designer here disagrees. If I was buying a glass boat I'd probably get this. Extra weight I suppose. on other methods- One builder here uses a method similar to what sailing dinghy builders use. the deck overlaps the hull and is glassed in under the lip. Very strong apparently but leaves a 'lip' edge. they are thinking of changing this to eliminate the lip by using a channel in the underside of the deck into which the hull will fit and be glassed. having rudder cables running through a join sounds potentially complicated to me, but maybe it's well designed? nick Nicholas Gill School of Geography and Oceanography University of NSW Australian Defence Force Academy Canberra ACT 2600 Ph. 02 6268 8317 Mob. 041 7659440 Fax 02 6268 8313 Email: nicholas.gill_at_adfa.edu.au ---------- > From: MJAkayaker_at_aol.com > To: paddlewise_at_lists.intelenet.net > Subject: [Paddlewise] Hull/Deck Seam Construction > Date: Thursday, 16 December 1999 3:52 > > I was reading some kayak manufacturer's literature recently (trying to > prepare for buying my next boat) and would like to get some more information > concerning the methods used to join the hull and deck of FIBERGLASS kayaks. > Necky talks about an "outside seam". Current Designs describes using a vinyl > "H" channel with hull and deck glued to the channel rather than to each other > (at least I think that is what they meant). Current Designs also says that > "outside seams" are available. > > 1. What is an "outside" seam exactly? > > 2. Current Designs info says the "H" channel method produces a "seam that has > a hollow center which accommodates the rudder cables inside". How are the > deck and hull glued to the "H" to leave a hollow center? Is the hollow > center going to be a weak point particulaly up forward where there is no need > for rudder cables.? > > 3. What are the pro's and con's of each construction (or does it even matter > to the paddler)? > > 4. Are there other options for joining the hull and deck together besides the > two I have mentioned? > > 5. Can you tell by looking at the boat how the deck and hull are joined? > > This may be asking for more than can be described here on paddlewise, but I > would appreciate any information you may be able to give. > > Mark J. Arnold > MJAkayaker_at_aol.com > > *************************************************************************** > PaddleWise Paddling Mailing List - All postings copyright the author and not > to be reproduced outside PaddleWise without author's permission > Submissions: paddlewise_at_lists.intelenet.net > Subscriptions: paddlewise-request_at_lists.intelenet.net > Website: http://www.paddlewise.net/ > *************************************************************************** *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Wed Dec 15 1999 - 14:26:21 PST
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