Following is a summary of the layup schedule for a 70ft x 14ft x 5ft, 56 ton longliner. the vessel is long and lean with moderate d/l, but the scantlings seem a bit light for a vessel for open ocean work.. When we were sent to the island of martinique to repair a boat for nortech we drop shipped our material from this company fiberglast.com. they will be able to convert your glass dimensions as they ship internationally. tell them i sent you. if you get a layup schedule usa. they can convert it . hope this helps. www.bottomsupboatrepair.com. So, we have a fiberglass structure that we have been working on using these same techniques, and we are adding a reinforcement fiberglass hand-layup to strengthen this fiberglass corner. this instructable / tutorial is intended to be not necessairly specific to airplane building..
Re: advice on a layup schedule. if the layup is many layers, butt ends are ok, if staggered. if the layup is only two or three layers, i would overlap, and stagger. if the layup is not a finished area, then raised areas from overlap is not an issue, like the inside of the transom and the stringers.. With the design factors set, swanhart was ready to specify the materials and ply schedule. as one of a group of designers who prefer not to use wood-cored laminates below the waterline, he went with a solid fiberglass laminate for the wetted hull, using an industry-standard factor of safety of approximately 2.. The right fabric choices need to be determined by the part, use and budget. normally, alternating layers of mat and roven woven (heavy cloth)make up most boat hulls. mat is stiff (and uses more resin per oz per sq ft) and roven woven is more flexible with less resin per sq ft. there are many different layup schedules that will do the same job..
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