America’s Cup: AC75 Class Rule Published

Published on March 29th, 2018

(March 29, 2018) – The Royal New Zealand Yacht Squadron and Circolo della Vela Sicilia, together with their respective teams, Emirates Team New Zealand and the Challenger of Record – Luna Rossa, published the AC75 Class Rule for the 36th America’s Cup today.

The AC75 Class Rule defines the parameters within which teams can design a yacht eligible to compete in the 36th America’s Cup. It regulates all aspects of the boat to ensure fair and exciting racing, whilst leaving plenty of freedom for innovation to flourish.

The development of the Class Rule has been a four-month process led by Emirates Team New Zealand, working together with Luna Rossa Challenge. Dan Bernasconi, Design Coordinator for Emirates Team New Zealand, explains:

“We are pleased to publish the Class Rule on time as per the Protocol. It has been a detailed collaboration with the Challenger of Record on all aspects of the rule, including the one design and supplied parts. We feel we have done a great job containing costs on certain aspects, while leaving the rule open enough for the America’s Cup to continue as the driving force of innovation and technology in sailing.”

Highlights of the AC75 Class Rule include:
• Strict limitations on the number of components that can be built including hulls, masts, rudders, foils and sails, thus encouraging teams to do more R&D in simulation and subsequently less physical construction and testing.
• Supplied foil arms and cant system to save design time and construction costs.
• Supplied rigging.
• One design mast tube.

In addition, the ‘soft wing’ mainsail concept that has been developed for the AC75 Class Rule is expected to have a trickle down effect on sailing in the future.

“The AC75 Class Rule sets the parameters for the teams to develop and race the fastest sailing monohull on earth. The rules are the result of a close collaboration and a true partnership between Emirates Team New Zealand and Luna Rossa,” said Martin Fischer, Design Coordinator for Luna Rossa Challenge.

“This marks a definite milestone and a turning point from developing the rule to developing the boat,” said Bernasconi. “Overnight we have to completely change our thinking, from trying to write a fair rule, to doing our best to design the fastest boat within the constraints of the rule. We have to stop thinking about what we intended the rule to mean, and start trying to pick it apart for what the words actually say – and see where there might be room to squeeze some advantage.”

This will be the same for the best minds in yacht design and technology across all of the teams who will begin to reveal their innovations March 31 2019 when the first AC75 yachts can be launched.​

AC75 Class Rule (v1.0): click here

Source: America’s Cup Media


Key dates:
✔ September 28, 2017: 36th America’s Cup Protocol released
✔ November 30, 2017: AC75 Class concepts released to key stakeholders
✔ January 1, 2018: Entries for Challengers open
✔ March 31, 2018: AC75 Class Rule published
June 30, 2018: Entries for Challengers close
August 31, 2018: Location of the America’s Cup Match and The PRADA Cup confirmed
August 31, 2018: Specific race course area confirmed
December 31, 2018: Late entries deadline
March 31, 2019: Boat 1 can be launched
2nd half of 2019: 2 x America’s Cup World Series Preliminary Events
February 1, 2020: Boat 2 can be launched
During 2020: 3 x America’s Cup World Series Preliminary Events
December 10-20, 2020: America’s Cup Christmas Race
January and February 2021: The PRADA Cup Challenger Selection Series
March 2021: The America’s Cup Match

Protocol of the 36th America’s Cup
Key Points of the Protocol
Deed of Gift

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