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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.).
Hull form lines, lengthwise and in cross-section from a 1781 plan. Hull shapes for sailing ships evolved from being relatively short and blunt to being longer and finer at the bow. [36] [obsolete source] By the nineteenth century, ships were built with reference to a half model, made from wooden layers that were pinned together. Each layer ...
Graphical representation of the dimensions used to describe a ship. Dimension "b" is the beam at waterline.. The beam of a ship is its width at its widest point. The maximum beam (B MAX) is the distance between planes passing through the outer sides of the ship, beam of the hull (B H) only includes permanently fixed parts of the hull, and beam at waterline (B WL) is the maximum width where the ...
A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline.
The following is a partial list of sailboat types and sailing classes, including keelboats, dinghies, and multihull (catamarans and trimarans). Olympic classes
In that period, sail plans might start from smallest to largest boat or ship in a hierarchy of sailing rigs: [10] [2] Yachts. Catboat with a single sail; Sloop with mainsail and jib; Yawl with a small mast behind the steering post; Ketch with a mizzenmast ahead of the steering post; Working boats and coastal freighters. Cutter with a single ...
In traditional construction, it is the structure upon which all else depends. Modern monocoque designs include a virtual keel. Even multihulls have keels. On a sailboat, the word "keel" is also used to refer to the area that is added to the hull to improve its lateral plane. The lateral plane is what prevents leeway and allows sailing towards ...
The hull is fiberglass with internal buoyancy tanks. The 420 has a bermuda rig, spinnaker and trapeze. It has a large sail-area-to-weight ratio, and is designed to plane easily. The 420 is an International class recognised by World Sailing. The name refers to the boat's length of 420 centimetres (4.2 m; 13 ft 9 in).