Sven Yrvind · video

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Sven Yrvind argues that small, lightweight boats survive extreme storms better than large vessels due to the square-cube law and the physics of impact energy.▶ 2:03 He demonstrates that a small boat acts like a boxer rolling with a punch, moving away from force rather than resisting it rigidly.▶ 0:21 Yrvind compares the structural integrity of various materials, noting that 20mm Finnish birch plywood significantly outperforms 9mm gaboon plywood.▶ 2:30 He advocates for composite construction using Divinycell foam cores and polyester fiber, which he claims absorbs five times more energy than fiberglass due to its superior elongation properties—17% compared to 4% for fiberglass.▶ 4:36 By calculating the kinetic energy of a 10-to-20-ton boat moving at 6–8 knots versus a sub-one-ton boat moving at 3 knots, he concludes that the smaller vessel experiences significantly less destructive force during a collision or storm event.▶ 6:24 The transcript also details his use of specific hardware, including hand-operated locking mechanisms for hatches and roof tie-downs to secure the boat against unauthorized entry and heavy weather.▶ 8:33

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