Introduction.
"THE NEXT EVOLUTION IN SURFBOARD DESIGN IS HERE AT LAST!"
In this world of high technology there have been many major changes - space research, cars, computers etc - but the humble surfboard has missed the 'techno wave'. Most surfers are riding boards which have hardly changed in 25 years. The current three-fin thruster is basically the same as it was in 1974; a simple concept - it is a planing hydro-craft.
The force a fluid can exert on an object is proportional to its surface area. The surfboard needs all its surface area to stay afloat at slow speeds. The trouble is, at high speeds when the water exerts more force on the board, it clatters and bangs around because the surface area it now needs is not much bigger than a skateboard. This is quite inefficient. One way to deal with this problem is to have three or more boards for different surf conditions.
