This paper describes the fabrication, loadout and launching of the world’s first cell spar hull. The hull was designed for fabrication by a Gulf Coast facility and represents a first for the industry, eliminating the time and cost of the traditional dry tow from a remote location. The fast-track schedule and first-of-a-kind design presented special challenges to hull fabrication. The paper will address basic design of the hull, capital improvements at the fabrication site, overall fabrication schedule, fabrication methods and construction sequence, including some special features in fabrication.
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