ZULUS thread about the aircraft carrier project, I saw rhe pictures of a gunport that is part of a display. I wondered how thick the "walls" were on OLD IRONSIDES the USS CONSTITUTION. I did a GOOGLE and found this URL and then the exploration began.
https://ussconstitutionmuseum.org/2015/ ... den-walls/Please follow the "read more" click throughs on the pages, the story is both fascinating and inspiring to think that the original work was done with only hand tools
. The article talks about a 30 foot scarf joint that is part of the keel of the ship.