Sven Yrvind · video

What this video covers

Sven Yrvind modifies the mast-base assembly on his custom, shallow-draft, high-latitude sailboat to eliminate axial movement. The mechanism uses a series of spacers and a locking knob secured by a small string to prevent the component from shifting during transit.▶ 1:03 To ensure the assembly remains fixed, Yrvind installs custom-fabricated brackets secured with two screws, which prevent lateral and longitudinal play.▶ 2:55 The current assembly weighs approximately 10 kilograms, though Yrvind notes that future iterations could reduce this weight by half.▶ 3:20 The design requires the removal of the bracket to facilitate sail installation.▶ 3:01 A tethering string prevents the locking knob from falling overboard into deep water during maintenance or assembly.▶ 3:25 This mechanical refinement ensures the mast-base remains secure while navigating the Southern Ocean on a planned 14,000-mile nonstop voyage.

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