Italy's Quantum Sails President Vittorio d’Albertas and his colleague Pietro Pinucci have spotted a setup problem on INEOS Team UK which is slowing the boat, preventing it from foiling.
British website Sailweb reported the theory is that the problem in light wind, where Britannia requires considerably more speed before they can start to foil, is down to an incorrect angle of attack of the foil arm, requiring the application of excessive flap angle.
The Italian pair have become YouTube stars with their comments on the new America’s Cup AC75 class.
Read the full story at Stuff.