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The forward motion of the foil then generates lift as in other hydrofoils. A common design consists of a large foil at the stern that is used both for propulsion and keeping the passenger above the water, connected to a smaller foil at the bow used for steering and longitudinal stability. Riders operate the vehicle by bouncing up and down on a ...
A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds.
HD-4 or Hydrodome number 4 was an early research hydrofoil watercraft developed by the scientist Alexander Graham Bell. It was designed and built at the Bell Boatyard on Bell's Beinn Bhreagh estate near Baddeck, Nova Scotia. In 1919, it set a world marine speed record of 70.86 miles per hour (114.04 km/h).
The collected power is then transferred to the water with a paddle wheel, flippers, [8] [9] [10] or to the air or water with a propeller. Pedaled craft include: Amphibious cycle; Hydrocycle; Pedal-powered kayak [8] [9] [10] Pedal-powered submersible or midget submarine [11] [12] Pedal-powered hydrofoil; Pedalo
The site also features memorabilia associated with Bell's experiments, including: the original hull of a hydrofoil boat, the HD-4, that set a world marine speed record in Baddeck by reaching speeds of over 112 km/h (over 70 mph) in 1919; a full-scale replica of that boat, the AEA Silver Dart, which in 1909 J.A.D. MacCurdy piloted up into the ...
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Decavitator is a human-powered hydrofoil equipped with pedals and an air propeller that was built by the Massachusetts Institute of Technology. It holds the human-powered speed record on water. [1] The vehicle was displayed hanging in the entry lobby of the Museum of Science, Boston until 2015. It is currently in storage at MIT.
The Flyak is a hydrofoil adaptation to the conventional kayak. It uses twin hydrofoils designed to raise the hull out of the water to increase the speed. Speeds of up to 27.2 km/h (7.6 m·s −1 , 16.9 mph) can be achieved on calm water.