Toulinguet under construction in center of FranceThe bottom planking is laid down, as well the first layer (of 3) of the side shell.The ballast keel is made of hard marine plywood. Two lead half torpedo will be tranversely bolted.The epoxy helm tube is already inserted into structure. A hole is made for the propeller shaft.The bottom planking is made of developed plywood. The side planking is cold moulded with plywoodA rabet is cut out into the bottom planking to receive the second cold moulded layer. The third layer covers the full shell.