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A steel ship's hull may be considered a structural beam with the main deck forming the upper flange of a box girder and the keel forming the lower strength member. The main deck may act as a tension member when the ship is supported by a single wave amidships, or as a compression member when the ship is supported between waves forward and aft. [2]
Their hulls were based on the Iwo Jima-class Landing Platform Helicopter (LPH) design due to the need for flat deck space for multiple antennas. After the retirement of the fleet flagships [cruisers] (see also List of cruisers of the United States Navy § Command cruisers (CLC, CC) ) these ships would be pressed into that role despite their ...
The flat main deck with cargo hatches and davits was designed in theory to facilitate the transfer of bulk supplies, however its low freeboard made this work extremely hazardous in typical North Atlantic swells that made the deck awash, so often supplies had to be hand-lifted through the smaller but drier conning tower hatches to avoid flooding ...
Some Navy and private ships use the afterdeck as a helicopter deck for a heliport for helicopters. A sundeck for chairs, chaise longue and lounge chairs. Rear deck swimming pool with a sundeck. On fishing boats a place to lay fishing nets or big-game fishing chairs or trawler gear. Cable laying gear. Scuba diving deck. Amphibious vehicle launching
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It can be both rowed and sailed. Its hull design allows it to double as a life raft. In that case it has a flat deck that will allow two adults to sleep on it. [2] The Franklin's hull has a W-shape, which supplies the dinghy with lateral resistance and also increases its stability. [3]
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In medieval times, warships had a single deck, with raised structures at each end: the "forecastle" in the front, and the "aftercastle" in the rear.Following the introduction of cannon, the aftercastle was gradually replaced with a simpler structure consisting of the halfdeck above the main deck, extending forwards from the stern to the mainmast; and above that the quarterdeck, extending about ...