From: "Jan Mason" <td376_at_mail.anonymizer.com> > I have to replace the forward bulkhead because it is > made of foam. How thick should the bulkhead be to support pushing on the > pump? I will be using okoume plywood purchased from Chesapeake Light Craft. > They have it 3mm, 4mm, 6mm, and 9mm sizes. My best guess would be to > laminate two 6mm pieces of plywood together and epoxy/glass the outside. That sounds awfully heavy. One of my kayaks has a bulkhead I made with a single layer of 4mm okoume and two layers of 3 oz glass on either side. I think it would support a foot pump. I would think that a single 6mm layer, glassed both sides would do fine. What is the width and depth of hull where the bulkhead goes? My kayak is a Solstice GTHV - if yours is significantly smaller than that, the bulkhead would be somewhat stiffer and stronger just due to the reduced span; stiffness changes with the square of the span. It will also be affected by the method of attaching the bulkhead to the hull - if you attach with a sealant it will be more flexible and weaker than if you glassed it in with a fillet of fiberglass on either side. Mike *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Mon Jun 10 2002 - 11:58:10 PDT
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