The Women's Americas Cup (WAC) regatta shall be raced in 6-7 provided one-design foiling AC40 yachts. The AC40 is a scaled AC75 designed by ETNZ and built by McConaghy.

The yacht is sailed by a crew of 4, who sit in pods on each side of the hull. The crew does not move around. All controls are powered controls.

The boat is set up with a double membrane mainsail of 63m2 and 3 different self-tacking headsails,/jibs of 38m2, 32m2 & 26m2.  The boat is designed with twin canting T-foils & a T-rudder of steel and carbon composite and a autopilot control system for stable flight.

In light winds the AC40 is expected to be able to sail at up to 26 knots at 46º upwind and 30 knots boat speed at 138º downwind. At the upper limits of 20 knots TWS, the boat speeds are expected to escalate to 39 knots upwind at 41º and 44 knots at an angle of 155º downwind.

The AC40 is available for purchase by private owners, The class was created by the America's Cup Event Authority and the boats will be used after the Cup in a professional sailing tour like the SailGP.

The AC40 will raise the level for owners-drivers competitions around the world. 7 AC40 are delivered to date and 5 are under production.