Présentation Kayak Transparent Réunion
Présentation du ' molokini ' kayak entièrement transparent,
Aqua Skipper Waterbird, New invention
A human-powered hydrofoil is a small hydrofoil watercraft propelled entirely by the muscle power of its operator(s). 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), easily exceeding the world records set by competitive rowing which stand at about 20 km/h (12 mph; 11 kn). This speed advantage is achieved since hydrofoils lack a submerged body to provide buoyancy, greatly reducing the drag force.
HYDROFOIL--AWESOME BAYLINER FLYS!!! Ray Vellinga video
Thrilling hydrofoil adventure video. Harry Larsen has a new electronic height control system for the front foil of Talaria IV and he and Ray do dangerous experimental runs. For Ray's book, CLICK THE FOLLOWING: http://www.amazon.com/Hydrofoils-Design-Build-Vellinga-Ray/dp/0982236115/re f=... for Ray's book.
HYDROFOIL -- The Amazing Boats of Kotaro Horiuchi. Video posted by Ray Vellinga
CLICK ON THE FOLLOWING: http://www.amazon.com/Locus-Boat-Designer-Kotaro-Horiuchi/dp/0971264643/ref =sr_1_21?ie=UTF8&qid=1301095862&sr=8-21 For Kotaro's book. Or, CLICK THE FOLLOWING: http://www.amazon.com/Hydrofoils-Design-Build-Vellinga-Ray/dp/0982236115/re f=sr_1_16?s=books&ie=UTF8&qid=1301096218&sr=1-16 for Ray's book.