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Sail plan of a brig. A sail plan is a drawing of a sailing craft, viewed from the side, depicting its sails, the spars that carry them and some of the rigging that supports the rig. [1] By extension, "sail plan" describes the arrangement of sails on a craft. [2] [3] A sailing craft may be waterborne (a ship or boat), an iceboat, or a sail ...
Two teams consisting of 2, 3, or 4 boats compete together in a race, all the boats being of the one class and reasonably evenly matched. The results of each team are combined to decide the winner; Race formats and sailing sport events Short course racing Sailing at the Asian Games; Sailing at the Summer Paralympics; Sailing at the Summer Olympics
The sail plan of the Searunner 31 typically includes a main sail, jib, and sometimes a spinnaker. The trimaran configuration allows for efficient sailing in a wide range of wind conditions, with the ability to achieve higher speeds than monohull designs. One of the notable characteristics of the Searunner 31 is its folding mechanism.
The boat has a draft of 5.75 ft (1.75 m) with the standard keel and 6.92 ft (2.11 m) with the optional deep draft keel. [ 1 ] [ 2 ] [ 3 ] The boat is fitted with a Japanese Yanmar diesel engine of 76 hp (57 kW) gasoline engine for docking and manoeuvring.
Equipped with a spinnaker, trapeze and a large sail-area-to-weight ratio, it is designed to plane easily, and good teamwork is necessary to sail it well. The name comes from the boat's length of 470 centimetres (4.7 m; 15 ft 5 in). The 470 is a World Sailing International Class and has been an Olympic class since the 1976 games. [1]
Filled with wind, the sail has a roughly spherical polygon shape and if the shape is stable, then the location of centre of effort is stable. On sailing craft with multiple sails, the position of centre of effort varies with the sail plan. Sail trim or airfoil profile, boat trim and point of sail also affect CE.
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In addition to providing more overall sailing force, a staysail can be used to modify a ship's sail plan to be more efficient in different types of weather. For example, in high winds a captain might reef a headsail, but that impacts the sail shape and can result in slower ship speed.