The single most radical development of the AC75 is to take a 75ft keelboat but put no keel on it whatsoever.

Ac75 no keel. The AC75 yachts have no keel and the hull appears to levitate in a strange equilibrium supported only by one hydrofoil cantilevered off to leeward. Each foil has wings that will. British Challenger for the Americas Cup INEOS Team UK was the first team to launch a first test boat in the build up to AC36.

The deck is slightly recessed to gain sail area favor the wind acceleration in the lower part of the sails and increase the. The design uses the righting forces generated by the canting port and starboard foils for stability as well as to lift the boat out of the water at speed. While designing the lines of TNZ Te Aihe we noticed that the AC75 rule was radically different from the rules that are in use in France for Open Mini Transat Open 40 or IMOCA mono-hulls.

Here it is. Then it climbs beneath the hull at the last part. The Americas Cup AC75 boat concept revealed.

The Emirates Team New Zealand and Luna Rossa design teams have unveiled the AC75 a concept design for the 36th Americas Cup in 2021The design is a 75 foot long foiling monohull. In this regard they are very like a 75ft skiff than a 75ft keelboat. The AC75 is the bold new high performance fully foiling monohull.

Designed jointly with competitors Luna Rossa the AC75 is a monohull with no keel. The new boats now all have some kind of keel ridge or skeg with a shape that differs from one boat to another. There is no heavy keel to help keep it upright like a traditional sailboat.

Burns Fallow raises an important issue inherent in the AC75 design concept with its reduced stability at low speeds - when there is no or little lift being generated by the leeward foil. GRANT DALTON CEO Emirates Team New Zealand We are really proud to present the concept of the AC75 today. The AC75 has a mainsail that actually consists of two sails set on the back of a D-Shaped.