Sailing SV Delos · video

What this video covers

The construction of the aluminum catamaran continues with the shaping of hull plates using an English wheel and the installation of bow and keel sections. To achieve the necessary curvature in the aluminum plates, the crew uses an English wheel, noting that consistent pressure and technique are required to avoid over-working the material.1:30 For the bow sections, the team employs a slot-welding technique, where pre-cut slots in the inner plates allow for welding to the internal flat bars before the slots are filled and ground flush.6:37 The build remains in the upside-down orientation to simplify welding angles and jigging.21:07 The crew also details the design rationale for choosing fixed mini-keels over daggerboards for their catamaran.10:41 They cite the simplicity, structural strength, and lack of internal trunking as primary advantages for a cruising vessel, noting that the mini-keels allow for beaching and provide a robust surface for the boat to rest on.16:08 The keels are also intended to dampen wave slap against the bridge deck while underway.20:47

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