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Shade sail over playground in Australia. A shade sail − or somewhat more precise a textile sunshade sail or a textile sun protection sail − is a device to create outdoor shade based on the textile basic technology that can be found in a ship's sail. [1] Shade sails use a flexible membrane tensioned between several anchor points. While ...
For most sails, the length of the chord is not a constant but varies along the wing, so the aspect ratio AR is defined as the square of the sail height b divided by the area A of the sail planform: [3] [30] = Aspect ratio and planform can be used to predict the aerodynamic performance of a sail.
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.).
Adjusting angle to the wind – Braces adjust the fore and aft angle of a yard (i.e. to rotate the yard laterally, fore and aft, around the mast). [57] Sheets attach to the clew to control the sail's angle to the wind. [57] Tacks haul the clew of a square sail forward. [57]
A jib, left, compared to a roughly 110% genoa, right. The foretriangle is outlined in red. The term jib is the generic term for any of an assortment of headsails.The term genoa (or genny) refers to a type of jib that is larger than 100% of the foretriangle, which is the triangular area formed by the point at which the stay intersects the mast, and deck or bowsprit, and the line where the mast ...
On a square rigged vessel, a topsail is a typically trapezoidal shaped sail rigged above the course sail and below the topgallant sail where carried, on any mast (i.e., a fully rigged ship would have a foremast topsail, a mainmast topsail, and a mizzen topsail). A full rigged ship will have either single or double (i.e., "split" upper and lower ...
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