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The necessary speed required to keep the skier upright varies by the weight of the barefooter and can be approximated by the following formula: (W / 10) + 20, where W is the skier's weight in pounds and the result is in miles per hour. It is an act performed in show skiing, and on its own.
Water skiers performing at Sea World on the Gold Coast, Queensland, Australia. Water skiing (also waterskiing or water-skiing) is a surface water sport in which an individual is pulled behind a boat or a cable ski installation over a body of water, skimming the surface on two skis or one ski.
Bollard pull is a conventional measure of the pulling (or towing) power of a watercraft.It is defined as the force (usually in tonnes-force or kilonewtons (kN)) exerted by a vessel under full power, on a shore-mounted bollard through a tow-line, commonly measured in a practical test (but sometimes simulated) under test conditions that include calm water, no tide, level trim, and sufficient ...
American Skier Inboard Boats. American Skier boats (not to be confused with Correct Crafts American Skier) was a tournament boat company founded by Ken Elkind. Elkind of North Miami Beach, Florida, United States, in 1975. Mr. Elkind, after retiring from the offshore racing circuits, became interested in the water skiing business. [1]
Nautique Boat Company is an American boat manufacturer that produces boats primarily for waterskiing, wakeboarding and wakesurfing. With models in the Super Air Nautique and Ski Nautique lines, they are widely considered the gold standard in the inboard towboat market. Owned by parent company, Correct Craft, Nautique is a member of the oldest ...
Sailing hydrofoils achieve boat speeds up to twice the speed of the wind, as did the AC72 catamarans used for the 2013 America's Cup. [20] Ice boats can sail up to five times the speed of the wind. [21] [22] Lateral force is a reaction supplied by the underwater shape of a sailboat, the blades of an ice boat and the wheels of a land sailing craft.
49er (dinghy) The 49er and 49er FX is a two-handed skiff-type high-performance sailing dinghy. The two crew work on different roles with the helm making many tactical decisions, as well as steering, and the crew doing most of the sail control. Both of the crew are equipped with their own trapeze and sailing is done while cantilevered over the ...
Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well. When hull speed is exceeded, a vessel in displacement mode ...