The 25 mph electric hydrofoil surfboard

March 10, 2007 A hydrofoil is a boat with wing-like foils mounted on struts below the hull. As the craft increases its speed the hydrofoils develop enough lift for the boat to become foilborne - i.e. to raise the hull up and out of the water. This results in a great reduction in drag and a corresponding increase in speed and has resulted in some of man’s more interesting water conveyances. The advent of the world’s first human powered hydrofoil catalysed a lot of activity in the area and one of several new manufacturers of human-powered hydrofoils, inventist, took the knowledge it had gained in developing the Aquaskipper and developed the Hydroglide, a surfboard with quick-charge, high-torque electric motor and a hydrofoil underneath. It’s still in the development stages but showing remarkable prowess with a top speed of 25 mph. That’s faster than the human-powered hydrofoil record, so it’s no slouch. The Ni-MH rechargeable battery has an average run time of two hours and takes just an hour to charge. Steering of the Hydroglide is accomplished with a steering bar and as the videos show, you can lie down or stand up.

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