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A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". [1] That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed.
As ship design evolved from craft to science, designers learned various ways to produce long curves on a flat surface. Generating and drawing such curves became a part of ship lofting; "lofting" means drawing full-sized patterns, so-called because it was often done in large, lightly constructed mezzanines or lofts above the factory floor.
There is a simple conversion factor that allows you to determine the approximate size of a model by taking the actual measurements of the full-size ship and arriving at a scale factor. It is a rough way of deciding whether you want to build a model that is about two feet long, three feet long, or four feet long.
The schooner Appledore II under construction. Boat building is the design and construction of boats (instead of the larger ships) — and their on-board systems.This includes at minimum the construction of a hull, with any necessary propulsion, mechanical, navigation, safety and other service systems as the craft requires.
Ships and boats have been included in art from almost the earliest times, but marine art only began to become a distinct genre, with specialized artists, towards the end of the Middle Ages, mostly in the form of the "ship portrait" a type of work that is still popular and concentrates on depicting a single vessel.
In 1815 she fought the last naval engagement of the Napoleonic Wars, fighting to a draw the French frigate Légère. USS Argus used during the First Barbary War and the War of 1812. Archer, a vessel of the Second Texas Navy. USS Oneida used during the War of 1812. James Fenimore Cooper was a midshipman aboard the Oneida while under construction.
The vertical/Z axis, or yaw axis, is an imaginary line running vertically through the ship and through its centre of mass. A yaw motion is a side-to side movement of the bow and stern of the ship. The transverse/Y axis, lateral axis, or pitch axis is an imaginary line running horizontally across the ship and through the centre of mass. A pitch ...
Ship stability is an area of naval architecture and ship design that deals with how a ship behaves at sea, both in still water and in waves, whether intact or damaged. Stability calculations focus on centers of gravity , centers of buoyancy , the metacenters of vessels, and on how these interact.