The Class Rule is open enough to guarantee a wide margin of freedom to the designers but introduces certain one-design elements for cost containment also.

Ac75 technology. The 23 m 75 ft monohulls featured wing-like sailing hydrofoils mounted under the hull a soft wingsail and no keel. The Flying Technology of the AC75. The AC75 class yachts are not simply sailing yachts.

Using technology to set precedence. The AC75 Class is a 75 foot high performance monohull governed by the AC75 Class Rule which was published on 29 March 2018. But the foils can serve another purpose too.

The system on which the AC75 monohulls fly on one of two retractable foils was a radical system designed for the 36th Americas Cup to be staged in Auckland this summer. This is the AC75. With the AC75 sailing on its foil drag is dramatically reduced vast amounts of power can be generated and so speeds rapidly increase.

In mere seconds the AC75 goes from low-speed displacement sailing in as little as 10 knots apparent wind speed to high-speed foiling in excess of 50 knots apparent wind speed. The AC75 is the bold new high performance fully foiling monohull. Using technology to set precedence.

The AC75 rule crafted for the upcoming 36th Americas Cup was intended to be open to multiple interpretations and the result has been four very different designs. The AC75 Designed to Fly - YouTube. Coupled with the fact the AC75 is unlike any other boat that has ever come before the current Cup cycle is fast proving to be as much a battle of the designers as a contest on the water.

On an AC75 its the trimmers and flight controller who decide where the power goes using electronic push-buttons mounted at their stations and linked back to the servo motors on the Single and Double True-Clutch assemblies. To start with the AC75 is big - 75-feet long and 16-feet wide - but its also light which is crucial because the AC75 is designed to fly. An exciting new era in Americas Cup racing has been unveiled today as the concept for the AC75 the class of boat to be sailed in the 36th Americas Cup is released illustrating a bold and modern vision for high performance fully foiling monohull racing yachts.