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Sven Yrvind designs a compact, retractable swim ladder for his small vessel to address limited hull space.▶ 0:04 He constructs a 1:2 scale model to test a folding mechanism that allows the ladder to stow flush against the hull.▶ 0:04 The design features 40-centimeter-wide steps and a bolt-and-wedge system that controls the extension angle when deployed.▶ 0:15 A string-operated pulley system raises and lowers the assembly, minimizing the footprint on the boat's exterior.▶ 0:46 Yrvind plans to build a full-scale version with increased structural integrity to support his weight during boarding and washing.▶ 1:17 He also repairs the hull by installing two patches near the ladder mounting point to reinforce the area.▶ 2:02 This new configuration improves upon the two-step design used on his previous boat, which required 150 days of use.▶ 2:19 The folding mechanism provides a space-saving solution for boarding from the water on a vessel with minimal freeboard.

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