So whats happening is that now there is a gap again.

Ac75 hull design. There is enough design scope in this department to prove hugely influential and with teams having to make decisions. Emirates Team New Zealand last week revealed the prototype test jig for the AC75 foil cant system that will be used to control the composite foil arms that will essentially lift the foiling 75 foot monohulls out of the water to fly around Aucklands Waitemata Harbour in 2021. While the American Magic AC75 appears to have been built with an all but totally flat underwater section Emirates Team New Zealands boat has a pronounced longitudinal bulge underneath running almost from bow.

Inside the AC75s hull is an intricate web of hydraulic pumps tubes valves and rams that allow the sailors to make micro adjustments using programmable logic controllers to manipulate the. On their blank sheet of paper or rather their monitors they started from a rather basic box rule with a hull length of 2070 meters a maximum beam of 5 m a displacement of 76 tons including two foils with ballast weighing 1215 kilos each and a few contingencies. Take a closer look at the technology and design rules that allow the AC75 to flySUBSCRIBE to the official Americas Cup channel.

Hulls As explained in the article a year ago the hull of an AC75 in foiling mode should have zero lift zero heel and almost zero distance between the bottom of the hull and the water surface. The initial AC75 hull designs fell into two basic types. In the latest episode of our Americas Cup podcast Ben Ainslie explains the key differences between the four AC75 hull designs launched to date Photographs of hull shapes will be pored over so teams can model each others designs.

However everyone retained that it was essential to design a slim hull under the main hull a kind of long keel. In the Scow corner you have INEOS Team UK and American Magic while in the Skiff corner we have ETNZ and Luna Rossa. It is quite easy from the outside to assume that there is still plenty of time before the Americas Cup in 2020 rolls around but in truth with one AC75 launching in 2019 and the next in time for the Cup in 2020 design for the main hull at least needed to be finalised recently.

This is the AC75 the class of boat. Since the initial launch INEOS appear to be the only team to have made use of the opportunity to reconfigure their hull. For the latter yacht Britannia 2 the design team has completely reviewed its.

The design of the AC75 is already well underway. Ralph HewittTeam INEOS UK Four AC75s have now been launched and each of these brand. The differences between the two AC75 hulls do not stop there with the two design teams taking significantly contrasting approaches on the underwater profiles of their AC75s as well.