Sven Yrvindvídeo
Exlex Fins – For Those Interested in the Development of Yacht Design.
24 de outubro de 2026 · 6 min · 29 visualizações
O que este vídeo aborda
Sven Yrvind details the design and mechanical operation of the fins for his boat, Exlex. He constructs the fins using 12 mm thick G11 epoxy laminate, measuring 105 cm by 40 cm.0:10 The design features a pin-and-slot mechanism that allows the fins to pivot 12 degrees outward with a 4-degree angle of attack for windward performance.0:38 The trunk system allows for three distinct positions: a neutral middle slot for coastal tacking and two outer positions for trade wind sailing.2:33 When deployed, 60 cm of the fin extends below the hull while 30 cm remains inside the trunk.2:12 For downwind trade wind conditions, the fins provide stabilization, with the angle of attack adjustable to 10 or 20 degrees depending on the wind state.3:58 Yrvind plans to test these configurations on an experimental model before installing the final assembly on the boat, which involves insulating the tank and securing the transom.5:04
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