Sven Yrvindvideo
Improving the guidelines for the aft hatch
December 28, 2025 · 7 min · 3K views
What this video covers
Sven Yrvind modifies the aft hatch guide rails on his custom small-draft, high-latitude sailboat to ensure the hatch remains fixed in the open position.▶ 0:55 The original design lacked sufficient clearance, causing the hatch to interfere with the ventilation system.▶ 4:55 To resolve the alignment issue, Yrvind fabricates new reinforcement components using G11 fiberglass laminate, chosen for its high strength.▶ 4:22 He adjusts the height of the guide rails, setting the rear at 15 mm and the front at 17 mm to provide necessary play for smooth operation.▶ 6:55 The ventilation assembly includes a protective mesh screen designed to block debris and marine life.▶ 5:56 Yrvind utilizes scrap carbon fiber pieces to reinforce the structure, maintaining a frugal approach to material usage.▶ 2:56 These modifications aim to secure the hatch mechanism for an intended 14,000-mile circumnavigation through the Southern Ocean.▶ 0:21
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