Mr. Herwig Marx has put together a nice collection of detail pictures of parts of the frame of his (no longer commercially built) "Kolibri". Check out: http://www.faltboot.de/images/temp/herwigs_boot.jpg Note particularly the (somehwat hidden) amidships gunwale joints and the connection of the (double) keelson sections (the keelsons being covered by plywood acting as a "sole" throughout the cockpit of this boat) on the same principle. The frames are clearly made of plywood and beatifully shaped to avoid even the remotest chance of contact with the skin. Note further the (rectangular cross section) stringers, which exhibit a stepped butt joint within an aluminium U-channel. The back of the channel is partially cut away. Presumably this saves some weight, but, more importantly, gives access to the butt between the stringer sections in case the joint becomes stuck due to swelling of the wood. Ralph ######################################################### Foldingboats Mailing List - All postings copyright the author and not to be reproduced outside Foldingboats or Foldingboats archives without author's permission Submissions: [EMAIL PROTECTED] Subscriptions: [EMAIL PROTECTED] #########################################################
