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America's Cup

AC75 - Filling in the Blanks

Emirates Team New Zealand asked Ray Davies and Dan Bernasconi to answer a few more of questions on the specifics of the AC75 Class Rule rule.

Teams will design their own hulls this time, where in Bermuda, the cat’s hulls were one-design. The new soft-wing mainsail also gives sail designers more latitude.

ETNZ’s technical director Bernasconi, who enjoys this phase the most, calls it the true beginning of a campaign – where the design boundaries have been laid out, and the innovation that pushes those boundaries begins.

Designing the AC75 will place more focus on fluid dynamics, hydrodynamics and aerodynamics than in the previous Cup, when the emphasis was on the foils and control systems.

Inside Emirates Team NZ’s base on Auckland’s Beaumont Street – not far from where the new America’s Cup village will be built – around two dozen designers are already working fulltime on the design of the defenders’ first boat of two.

There's another deadline to meet; the first boats can be launched on March 31 2019.

Since the class rule was released to the world at the end of last month, some potential challengers have renewed contact with Emirates Team NZ, says Bernasconi.

“They’re asking for more information about various aspects of the rule and the protocol. There are a number of potential teams out there, but we will have to wait and see how many of them make it to the start-line,” he says.

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