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http://www.designboom.com/weblog/cat/8/view/9513/aguila-design-breaking-marine-vehicle.html
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belgian designer jan gielens of spain-based aguila design has developed 'breaking',
a water vehicle which responds to both economic demands and new technological advances
in the area of water sports. 'breaking' is known for its manoeuvrability, having the ability
to take full turns at high speeds, and can stop quickly and suddenly without overshooting,
jerking, rolling, reeling over or capsizing.

the manipulation of gravity used within the structure of the vehicle allows for a hydrodynamic
effect on the keel (the 'fin' below the marine craft), aerodynamic forces affecting the profile
of the wing and the propulsion of the movable air propeller on the dynamic centre,
which has a favorable influence on the energy consumption of the propulsion motor.