To start a plug (aka mold, aka armature) is made from the hull lines of the boat. This one was made to have wooden ribs so there are alignment aides for placing the ribs around the plug. They will not be used for making a PM hull.
The plug is built on a platform that has screws and nails available to enable elastic bands to be strung accross the hull and hold "planking" inplace.
When finished the PM model will be like this wooden model built from the same plug. The difference will be in the hull materials. Instead of gluing wooden planks to ribs the hull will be made from Paper Mache -- layers of cardboard, heavy paper and tissue paper pulp.
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