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Hydrofoils are the fastest water-based vehicles propelled solely by human power. They can reach speeds of up to 34 km/h (21 mph; 18 kn), [ 1 ] [ 2 ] [ 3 ] easily exceeding the world records set by competitive rowing which stand at about 20 km/h (12 mph; 11 kn).
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.
Hydrofoils have less water resistance at the highest speeds attainable by humans and are thus usually faster than displacement boats on short courses. The world speed record on water was set 27 October 1991 by MIT professor Mark Drela who pedalled a human-powered hydrofoil , " Decavitator ", to 9.53 m/s (34.3 km/h; 18.52 kn; 21.3 mph) over a ...
Speeding through Stockholm’s archipelago, electric boat maker Candela’s new P-12 vessel barely makes a sound as it glides over a meter (3 feet) above the water.
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
Island hopping. In the summer of 2022, REGENT tested a quarter-scale prototype of its seaglider — a remotely operated version weighing 400 pounds, with a wingspan of 18 feet. The full-scale ...
Navier produces all-electric boats that glide above the water using a hydrofoil design. [16] [17] These boats combine hydrofoil technology, rechargeable batteries, advanced computer software, and joystick-controlled maneuverability. Its underwater foils lift the hull above the water, reducing hydrodynamic resistance, while joystick operation ...
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.