Condition of principal use signifies the state on whose waters a vessel is utilized or to be used most, regardless of whether moored or underway, in the course of a calendar calendar year. Metal hulls from metal or aluminum offer the opportunity for welding components to a completely watertight hull. https://louboutinshoesoutlet.co.uk/navigating-the-seas-a-comprehensive-guide-to-yacht-and-boat-registration