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Designer’s Notebook: Marine Plywood – True or False?

On July 17, 2013, in Designer Articles, Glen-L Styles, Plywood Construction, WebLetters, by Glen L. Witt
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I was looking over a website selling Marine plywood. After reading the introduction, I wondered why they felt it necessary to exaggerate the qualities of what is, in fact, a superior product. The following (in quotes) are some of the statements made on their website; the True/Flase replies are mine. Small boats: “While small stitch and glue boats can be […]

Designer’s Notebook: Fastening Sheet Plywood to Frames?

On July 11, 2013, in Designer Articles, Glen-L Styles, Plywood Construction, WebLetters, by Glen L. Witt
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Building boats planked with sheet plywood started around the WW II era. Before that, the adhesives used to make plywood were, in short, worthless for marine application; the plies would delaminate in a heavy fog. After the adhesives were improved, it took a long time before professional boatbuilders would use plywood because of its previous problems. […]

Designer’s Notebook: Save Money by Using Random-Random Stock

On June 21, 2013, in Builder Blogs, Designer Articles, WebLetters, by Glen L. Witt
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 The Bill of Materials in our plans often use the terminology “random-random”, meaning varying lengths and widths. Most large lumber suppliers, particularly those supplying wood commonly used in boat building, don’t buy material already milled such as the common 1″ x 6″ or 2″ x 4″ sold in lumberyards catering to home construction. Their lumber […]

First Steps in Building Your Boat: Setting up – The foundation for building a boat

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  A boat, unlike a house or garage, does not have flat areas such as a level foundation with vertical uprights (studs).  A boat is curved from most any direction you view it so an artificial foundation must be created. We’ve developed a method of using a “building form” to substitute for the “foundation” in the analogy […]

CB… What the heck is it anyway?

On May 9, 2013, in Designer Articles, Glen-L Styles, WebLetters, by Glen L. Witt
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CB is the abbreviation for “Center of Buoyancy” used on Glen-L plans. The CB can be compared to the fulcrum of an in-balance teeter-totter. The CB is the longitudinal balance point of the underwater volume. Add weight aft of the CB and the boat will go down by the stern, forward and it will be […]