Ship Wallpapers

Ship - wallpapers: A ship is a large, sea-going watercraft, sometimes with multiple decks. A ship usually has sufficient size to carry its own boats, such as lifeboats, dinghies, or runabouts. A rule of thumb saying (though it doesn't always apply) goes: "a boat can fit on a ship, but a ship can't fit on a boat". Often local law and regulation will define the exact size (or the number of masts) which a boat requires to become a ship. (Note that one refers to submarines as "boats"). Compare vessel. During the age of sail, ship signified a ship-rigged vessel, that is, one with three or more masts, usually three, all square-rigged. Such a vessel would normally have one fore and aft sail on her aftermost mast which was usually the mizzen. Almost invariably she would also have a bowsprit but this was not part of the definition. The same economic pressures which increased sizes to the point of carrying four or five masts, also introduced the fore and aft rig to larger vessels, so few ship-rigged vessels were built with more than three masts. The five-masted Preussen was the outstanding example but the big German ships and barques were built partly for prestige reasons. Nautical means related to sailors, particularly customs and practices at sea. Naval is the adjective pertaining to ships though in common usage, it has come to be more particularly associated with the noun 'navy'. [br]Measuring ships: [br]A number of different tonnage definitions exist; most measure volume rather than weight and are used when describing merchant ships. [br]- Gross tonnage is a measure of the total internal volume of the ship. [br]- Net tonnage is expresses a merchant vessel's earning capacity and gives the internal capacity of that part of the ship [br] available for cargo or passengers. [br]- Thames measurement tonnage was used for smaller vessels and worked to a formula: (length - beam) x beam x [br] �beam / 94 [br]- Displacement tonnage is normally applied to warships and equals the actual weight of a ship complete with crew, fuel, [br] stores and water. [br]- Light ship tonnage measures the actual weight of the ship with no fuel, no persons, no cargo, no water on board is not [br] usually quoted. [br]Deadweight tonnage is the weight of cargo, stores, passengers etc. which when added to the weight of the ship's structure and equipment, will bring the vessel down to her designed waterline. [br]

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