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Encyclopedia > Cunningham (sailing)

In sailing, a cunningham or cunningham's eye is a type of downhaul used on a Bermuda rigged sailboat to change the shape of a sail. Sailing at sunset Wooden sailing boat Sailing is the skillful art of controlling the motion of a sailing ship or smaller boat, across a body of water. ... The downhaul is a line (or rope) which is part of the rigging on a sailboat; it applies downward force on a spar or sail. ... In sailing, a bermuda rig is: A rig of mainsail or course that consists of a triangular sail set aft of the mast, with its head raised to the top of the mast, its luff running down the mast and normally attached to it for all its length, its tack...



It is named after its inventor, Briggs Swift Cunningham II, victorious America's Cup sailor and racecar enthusiast, driver, team owner, and racecar owner and builder. An inventor is a person who creates new inventions, typically technical devices such as mechanical, electrical or software devices or methods. ... The Americas Cup trophy The Americas Cup (originally the 100 Pound Cup, then the America Cup ) is the most famous and most prestigious competition in the sport of yachting, and the oldest active trophy in international sports, predating the FA Cup by two decades and the Modern Olympics... Auto racing (also known as automobile racing or autosport) is a sport involving racing automobiles. ...


The manoever differs from a typical downhaul in the way that it attaches to the sail. The system usually consists of a line which is secured at one end to the mast or boom below the foot of the mainsail. It is then passed through a cringle in the luff of the sail near the foot, but above the tack, and then led down on the other side to a fitting on the mast or boom or on deck. mizzen mast, mainmast and foremast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... In sailing, a boom is a spar (pole) usually made of aluminum or wood, is connected to the foot of the mainsail and allows the crew to control the angle of the sail to the wind. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... A cringle is an eye through which to pass a rope. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... Look up deck in Wiktionary, the free dictionary. ...


By hauling or easing the line, the tension in the luff can be changed, which shifts the point of maximum draft of the sail forward or aft, optimizing sail shape—and therefore—performance. It is a fine control which is used more frequently on racing sailboats than on cruising or day-sailing boats. In nautical parlance, the draft or draught of a sail is a degree of curvature in a horizontal cross-section. ...


External links

  • http://www.briggscunningham.com/cmuseum.html
  • http://www.rrdc.org/ look at deceased members list for the biography
  • http://www.themaseraticlub.com/ITOL_Briggs.html Briggs Swift Cunningham II - tribute 2002
  • Glossary of Sailing, Cruising and Nautical Terms





 
 

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