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Sail components include the features that define a sail's shape and function, plus its constituent parts from which it is manufactured. A sail may be classified in a variety of ways, including by its orientation to the vessel (e.g. fore-and-aft) and its shape, (e.g. (a)symmetrical, triangular, quadrilateral, etc.).
Hulls have several elements. The bow is the foremost part of the hull. Many ships feature a bulbous bow. The keel is at the very bottom of the hull, extending the entire length of the ship. The rear part of the hull is known as the stern, and many hulls have a flat back known as a transom.
If you draw a box around the submerged part of the ship, it is the ratio of the box volume occupied by the ship. It gives a sense of how much of the block defined by the L WL, beam (B) & draft (T) is filled by the hull. Full forms such as oil tankers will have a high C b where fine shapes such as sailboats will have a low C b.
Three-masted training ship Mersey Main topgallant mast The mast of a sailing vessel is a tall spar , or arrangement of spars, erected more or less vertically on the centre-line of a ship or boat. Its purposes include carrying sails , spars, and derricks , giving necessary height to a navigation light , look-out position , signal yard , control ...
The keel runs along the centerline of the ship, from the bow to the stern. The keel is often the first part of a ship's hull to be constructed, and laying the keel, or placing the keel in the cradle where the ship will be built, may mark the start time of its construction. Large, modern ships are now often built in a series of pre-fabricated ...
Quarterdeck: (a) The part of the upper deck abaft the mainmast, including the poop deck when there is one. Usually reserved for ship's officers, guests, and passengers. (b) The shipboard area, connected by a gangplank to a dock or another ship, where personnel arrive and depart a naval vessel in port. It is where the Officer of the Deck and his ...
There are many terms for parts of a ship with functions similar to a bridge. Depending upon the design and layout of a ship, some of these terms may be interchangeable. Traditionally, sailing ships were commanded from the quarterdeck, aft of the mainmast, where the ship's wheel was located (as it was close to the rudder).