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.
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Mostly dry with sunny spells throughout the day. Some isolated thundery showers are possible in Kent this morning and feeling fresher
Sunny this evening, then dry overnight. There is the risk of thundery showers for Kent tomorrow morning, then sunny spells by the afternoon
Sunshine to end the day then dry tonight. Tomorrow will be mostly dry and feeling fresher with the risk of a heavy shower in the afternoon