Sven Yrvind · video

What this video covers

Sven Yrvind modifies the trim rudder on his small-draft, high-latitude sailboat to improve performance for a planned circumnavigation of the Southern Ocean.▶ 0:29 He enlarges the existing rudder surface using a piece of high-density 830 foam found in his workshop.▶ 0:55 After cutting the foam to fit, he bonds the material to the rudder using thickened epoxy.▶ 0:51 The design features a 28-degree leading edge angle, which Yrvind calculates will deflect debris without the need for a protective skeg.▶ 2:37 He plans to finish the modification by smoothing the foam, applying fiberglass laminate, and painting the surface.▶ 4:31 Addressing viewer feedback regarding construction order, Yrvind explains that he must complete the structural lamination before applying paint to ensure proper adhesion.▶ 4:56 The rudder assembly sits 10 to 11 centimeters above the ground, providing sufficient clearance for the vessel's shallow draft.▶ 3:14

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