The America's Cup 2017

The America's cup regatta was a race between monohulls for many years since 1851. In 1983, the Australians, under Dennis Conner, won the cup.  After a long legal battle the rules were changed in 2010. 90 ft catamarans were used instead of monohulls. They can fly one hull and reduce the drag so that boat speed is almost double that of a monohull.