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10 CFR 50.71(e) - Maritime Administration - U.S. Department of ...

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Updated Final Safety Analysis Report – (STS-004-002)2 SHIP DESCRIPTION2.1 Features and CharacteristicsPrior to permanent defueling in Fall 1971, the N.S. SAVANNAH (NSS) operated as a single-screw, all-steel,nine-compartment, cargo ship, with raked bow and modified cruiser stern. The ship has three completedecks and three upper decks in the superstructure. The ship’s principal characteristics are shown in Table2-1.Table 2-1 Principal Characteristics <strong>of</strong> the N.S. SAVANNAHDimensions FeetLength overall 595.5Length fore-post to rudder-post 545Beam, molded 78Height, baseline to weather deck (A-deck) 50Height, baseline to top <strong>of</strong> house 85Draft, design 29Draft, light ship (approximate) 18.33Displacement and Tonnage in Long TonsNet carrying capacity, total deadweight tons 9,656Full load displacement, tons 21,990Light ship, tons 12,3342.2 Compartmentation, Decks and Space Arrangement2.2.1 CompartmentationFollowing reconstruction <strong>of</strong> bulkhead openings created when the ship was on public display at thePatriots Point Naval and <strong>Maritime</strong> Museum, the integrity <strong>of</strong> the ship’s transverse watertightbulkheads was not confirmed (see Section 1.2.1). Therefore, the ship’s original design capacity toresist damage and remain afloat with any two compartments flooded cannot be verified. The NSSmeets all applicable USCG intact stability criteria, which is the minimum standard required for shipmovements and layberthing.The following text is retained for historical purposes.The hull is subdivided by <strong>10</strong> watertight transverse bulkheads extending to the freeboard deck (Bdeck).The ship is designed to a two-compartment standard <strong>of</strong> subdivision (i.e., the ship will remainafloat with any two compartments totally flooded at the vessel’s full load draft <strong>of</strong> 29 feet 6 incheswith the margin line 3 inches below B-deck), which meets the requirements <strong>of</strong> the USCG. Tonnageopenings have been closed to convert the NSS from a sheltered deck to a full scantling vesselresulting in additional damaged stability.Rev. VI 19

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