Sven Yrvindvideo
3 Apr 23. Ballast keel because of swimming ladder.
3. april 2023 · 3 min · 5K visninger · Sanctillena
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Irwin and Peter are recasting a bronze ballast keel to reduce its weight from 183 kilograms to 80 kilograms.0:26 The original bronze sole exceeded the design target of 150 kilograms, prompting the decision to recast the component with the assistance of Lam Hulstrup.0:42 The new keel design incorporates a 20-centimeter-high profile to function as a beaching deck and a mounting point for a one-meter-long swimming ladder.1:06 This configuration allows the boat to rest on the keel while keeping the rudder seven centimeters above the ground to prevent damage during beaching.2:30 The team plans to use an open-form casting method in sand, limiting the bronze pour to exactly 80 kilograms to ensure the weight remains within specifications.3:06 The design ensures the waterline remains at knee height when the vessel is beached.1:53
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