Sven Yrvind · βίντεο

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Sven Yrvind constructs a custom boom for his vessel using box-beam construction techniques to ensure structural rigidity. He glues long wooden components together, noting that the finished assembly weighs approximately 2.5 kilograms before final epoxy coats and hardware installation.▶ 1:11 The design prioritizes strength over lighter alternatives like PVC pipe to accommodate the specific mechanical loads of a balanced lug rig.▶ 2:08 In a balanced lug configuration, the boom remains unattached to the mast and relies on a downhaul to control sail shape and prevent the boom from lifting.▶ 3:05 This downhaul functions similarly to a boom vang, requiring the boom to act as a stiff beam.▶ 3:04 The design places one-third of the sail area forward of the mast to reduce forces during gybes and improve handling.▶ 3:34 The structural integrity of the boom is essential for managing the tension applied by the downhaul in this rig type.▶ 2:39

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