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A deck is a permanent covering over a compartment or a hull [1] of a ship. On a boat or ship, the primary or upper deck is the horizontal structure that forms the "roof" of the hull, strengthening it and serving as the primary working surface. Vessels often have more than one level both within the hull and in the superstructure above the ...
The main deck of a ship is the uppermost complete deck extending from bow to stern. [1] 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 ...
Forecastle. Replica of the Victoria, the only one of Ferdinand Magellan 's five ships to return to Spain in 1522, showing both a forecastle (left) and quarterdeck (right). The forecastle (/ ˈfoʊksəl / ⓘ FOHK-səl; contracted as fo'c'sle or fo'c's'le) [1][2] is the upper deck of a sailing ship forward of the foremast, or, historically, the ...
The complete structure of the ship is designed with panels shaped in a rectangular form consisting of steel plating supported on four edges. Combined in a large surface area the Grillages create the hull of the ship, deck, and bulkheads while still providing mutual support of the frames. Though the structure of the ship is sturdy enough to hold ...
When a ship is loaded with cargo, it may have many times its own empty weight of cargo pushing down on the structure. In heavy seas, water flowing over or crashing down onto the weather deck applies (possibly immense) loads on the deck and transverse loads on the superstructure or other deck features such as coamings and hatches.
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 ...
Compartment (ship) A compartment is a portion of the space within a ship defined vertically between decks and horizontally between bulkheads. It is analogous to a room within a building, and may provide watertight subdivision of the ship's hull important in retaining buoyancy if the hull is damaged. Subdivision of a ship's hull into watertight ...
Main parts of ship. 1: Funnel; 2: Stern; 3: Propeller and Rudder; 4: Portside (the right side is known as starboard); 5: Anchor; 6: Bulbous bow; 7: Bow; 8: Deck; 9: Superstructure. Ships are typically larger than boats, but there is no universally accepted distinction between the two. Ships generally can remain at sea for longer periods of time ...