The racing yachts used in the America's Cup

Andrew Simpson was training on one of the new super catamarans. They're 72 feet long and powered by a huge windsail. It's the first time these racing yachts have been in the America's Cup. It's the oldest sporting event in the world - and began, in 1851, off the Isle of Wight.

Andrew Pate takes a look at these new 'super cats' - and just what they're designed to do.