
When the rules were written for the 34th America’s Cup, a bunch of radical 72ft catamarans were born. Those boats were destined to be at the cutting edge of design and to create a spectacle that would take sailing to the level of motorsport.
The carbon-fibre monsters are now zooming around San Francisco Bay so close to shore as to make the Cup a true spectator sport.
But the boys at Emirates Team New Zealand wanted to take it further. Instead of designing a conventional catamaran, the Kiwis designed one that could rise up on foils to reduce drag and increase speed to a level that would astound even themselves.
Of course the other teams had to follow or they would be blown out of the water by the Kiwis achieving unheard of speeds.
So how does all this work?