The Science Behind the AC72 Wing Sails
Video. About 3 minutes.
The boats used in the 34th America's Cup - AC72s - are giant catamarans with a revolutionary 40 meter (131 foot) wing sail that is about the same size as a jumbo jetliner's wing. The technology of these sails allows the trimmer to power up the boat so it can fly 3X faster than the speed of the wind.