America's Cup: Foils - how they work and Luna Rossa's new toys

Emirates Team New Zealand practice and testing with the AC72, NZL5 in San Francisco.

AC UnCut's Genny Tulloch goes behind the scenes at Oracle Team USA's base on Pier 80 in San Francisco to have a chat with Designer Joseph Ozanne about the shapes of foiling.



In the second video Genny Tulloch catches up with Luna Rossa skipper Max Sirena to hear about challenges the Italian team faces against the clock in this 34th America's Cup, and the anticipated arrival of 'new toys' in the coming days.



One of Alinghi 5 S foil that was not used for the races.
Jean Philippe Jobé