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We Just Made Our Sailboat Bigger (50 to 52 ft) - Ep. 481 Ran Sailing

20 March 2026 · 28 min · 117K views · Karlstads kommun, Sweden

Man fits foam panel to sailboat hull extension

What this video covers

Johan and Malin extend their custom-built sailboat hull from 50 to 52 feet to create a larger swimming platform at the stern.12:01 The process involves cutting the existing hull at the original design line and constructing a new transom extension using PT foam sandwich panels.12:08 To shape the foam to the hull's compound curves, Johan makes 80 kerf cuts in the material.22:29 The team builds a temporary mold using narrow wood planks glued to the hull perimeter to support the foam during the initial interior fiberglass lamination.19:54 Before beginning the structural extension, they verify the hull's rigidity by taking measurements to ensure the structure does not shift after removing the final temporary frame.13:01 Inside the boat, the crew completes the guest cabin ceiling using 25mm PT foam panels and plans a recessed drawer for the nav station to maximize storage without obstructing cabin space.0:34 They finish the week by painting the bilges with two-component polyurethane paint.18:38

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