STAGE 5 - INTERIOR FABRICATION: frames and watertight bulkheads are installed. Frames perform a dual purpose as structural supports as well as providing the framework for storage compartments.

The fitting of bulkheads is directly linked to the boat’s buoyancy. If any part of the hull is penetrated following a collision with another ship or an obstacle floating in the water, only one of the three sections that the boat is divided into will fill with water. Enough time should then be afforded the crew to perform an emergency hull repair - using special foam-sealed PVC sheets quickly stapled to the outside - and bilge out the contents of the compromised section.

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