« L’ AC45 a prouvé qu’il était spectaculaire; l’ AC72 sera sensationnel. » Russell Coutts chef de direction D4ORACLE Racing a présenté le premier catamaran AC72 construit dans trois endroits différents autour de la région du Pacifique. This week on America's Cup Uncovered we're in Auckland where Luna Rossa Challenge and Emirates Team New Zealand went head to head for the first time. We have reactions to the testing sessions for the wing extensions, designed to increase the speed of the AC45s in lighter breeze. Then, we in San Francisco to uncover Save the Bay - partner of the America's Cup Healthy Ocean Project. But first, some crew news from Team Korea: White Tiger Challenge announced the recruitment of two current world champion athletes. Australian Nathan Outteridge will replace outgoing skipper and helmsman Chris Draper, who has joined Luna Rossa Challenge. Also joining Team Korea is World and European Finn Champion, Giles Scott, from Great Britain. Emirates Team New Zealand chief operating officer Kevin Shoebridge says 
Deux ailes dans les canaux de Patagonie This is a model I made of an America's Cup AC45 Wing Sail Catamaran using Rhino and Grasshopper. The basic outline of the model is based on America's Cup pro... Modélisation Eléments Finis d'une voile rigide pour un maxi trimaran CSMA 2011: 10ème Colloque National en Calcul des Structures 
The decision to use rigid wing sails for the next generation of America's Cup boats has lead to a race in understanding of this novel sail boat system. The AC45 and AC72 will be fast, light and exciting, and offer a unique challenge to both the sailors and the designers. 
AC72 build like Lego on a large scale
Winging It: America’s Cup Racers Push the Sailboat to Its Limits
John Kostecki has one instruction for me: “Hold on.” It’s a sunny day in New Zealand’s Hauraki Gulf, off the coast of Auckland, and I’ve just boarded Kostecki’s boat. Actually, calling it a boat suggests something a lot more substantial than what I’m standing on. It’s the barest skeleton of a raft, a wisp of a catamaran 22 feet wide by just under 45 feet long. Called an AC45, it’s a bantam version of the next-generation America’s Cup yacht, and it’s unlike anything else on water. Above me is not a sail but a solid wing, mounted vertically like a fin. At 70 feet tall, it is longer than the wing of a Boeing 727. Yet the craft that this massive airfoil propels is almost fully dematerialized—a CAD file in wireframe hovering over the bay. As far as I can tell, there’s nothing to hold on to.
Wired : http://www.oracleracing.com/web/media/files/m5126_Wired_mag_article.pdf
High-Tech AC45: A tire d'aile
Gilles Martin-Raget a été l’un des premiers à embarquer
Voiles&Voiliers Décembre 2011: http://www.oracleracing.com/web/media/files/m5595_Voiles%20Voiliers_Dec%202011.pdf Want to know what it feels like to fly across water? Join an America's Cup team as they scream over the sea. 
The 66mEmax E-Volution Solar Hybrid Schooner by Sauter Carbon Offset Design is being described as the Fastest and Greenest Superyacht of our time with a maximum Speed of 28 knots and an unlimited Zero Carbon Cruising Range at 14 knots. The 66m Emax E-Volution Solar Hybrid Sailing yacht is to be built by NedShip is, according to Sauter Carbon Ofset design, a culmination of the very best the yachting world has to offer. |
A forum entry from Pressure-Drop with a collection of pictures taken during Oracle Racing training on President's day. A reader a the Foilers blog (foils.wordpress.com) observed that one of the AC45 was equipped with L-Shaped foils. Is it a new innovation that will come on the AC45 after the WingSail extension? 
Ryan Nelson from West Marine Rigging in Alameda, California sends us this great write up and pictures of his AC45 expierence in San Diego. 
2012 springtime training in Mondello Graphic rendering: Vito Pavia (www.vitopavia.com)
Promoted by Roberto Grippi and formed in September 2010, Challenge Italia is a group of sailors, designers, and boat builders determined to challenge in C-Class catamarans with the aim of winning the Little America’s Cup, due (at present) to be held in 2013 in Falmouth, England. It is the first Italian challenger for the Little America’s Cup in 31 years.
http://www.challengeitalia.it/
Emirates Team New Zealand and Luna Rossa in their first practice racing sessions on Aucklands Waitemata Harbour. Both boats are sailing with the new AC45 wingsail extensions in winds that ranged from 15-20kts. 
Simulation software from Dassault is being used to help a team of engineers get its extreme sailing boat - the V-44 Albatross - off the ground The thrilling world of speed-sailing is responsible for some remarkable engineering innovations. John Kostecki has one instruction for me: “Hold on.” It’s a sunny day in New Zealand’s Hauraki Gulf, off the coast of Auckland, and I’ve just boarded Kostecki’s boat. Actually, calling it a boat suggests something a lot more substantial than what I’m standing on. It’s the barest skeleton of a raft, a wisp of a catamaran 22 feet wide by just under 45 feet long. Called an AC45, it’s a bantam version of the next-generation America’s Cup yacht, and it’s unlike anything else on water. Above me is not a sail but a solid wing, mounted vertically like a fin. At 70 feet tall, it is longer than the wing of a Boeing 727. Yet the craft that this massive airfoil propels is almost fully dematerialized—a CAD file in wireframe hovering over the bay. As far as I can tell, there’s nothing to hold on to. Wired : http://www.oracleracing.com/web/media/files/m5126_Wired_mag_article.pdf Techniques Avancées est un catamaran expérimental conçu et réalisé par les élèves de l'ENSTA ParisTech. Il est lancé en 1989 a détenu de 1997 à 2007 le record du monde de vitesse à la voile en catégorie grande voilure (classe D).
Michel Desjoyeaux and Sebastien Col preparing a Diams 18 w rigid #wingsail via @pyl
Michel Desjoyeaux and Sebastien Col preparing a Diams 18 w rigid #wingsail
Looking forward for new information on this project Thank you @PYL for sharing this UNCOVERED CLIP: We go behind the scenes at ORACLE Racing's team base on Pier 80 in San Francisco to meet the designers and engineers. We even got to sit in a top secret meeting about AC72 design. Studio di una procedura integrata di ottimizzazione delle vele rigide dei catamarani Classe AC72, progettati per le regate della 34th America's Cup POLITECNICO DI MILANO Vincenzo CARABELLI
Abstract: This thesis concerns the development of a procedure for calculating the performance of a racing catamaran with wing sail. The objective is to simulate the behaviour of the wing sail in different wind condition at many points of sailing, in order to estimate the performance of the AC72 Class catamarans. Boat which will take part in the 34th America's Cup in 2013. These vessels, by using modern technologies and materials, will be able to reach speeds up to three times the wind speed and will be cunducted by the best sailors in the world. The study of the performance includes a Vortex Lattice aerodynamic model for calculating the loads on the sail, a finite element model for the stress evaluation in the structure and an hydrodynamic model for the resistance of the hulls. The aim of the thesis is the implementation of an engineering method of analysis that integrates structural and aerodynamic model to create a cycle of optimization valid for the design of a generic wing sail. 
This amazing vehicle, Aeolus, is a creation by Yogi Beeuwsaert. It is actually a vessel that has many uses. The Aeolus has formidable and impressive features such as a SWAT torpedo hull, embedded with two outriggers that present a very novel trimaran platform. The hulls have hydrofoils inside that permit them the outriggers to be carried above the water in order to optimize the speed when the water is still. 
Our project consists in designing and selling innovative sails based on our US patented technology which allows the realization of a Soft Wing with Variable Profile. With concern to material and construction typology, our wing may look like a traditional flexible sail but it actually presents with a fully sealed double surface capable to take an asymmetrical airfoil which range from concave to flat lower surface (Joukowski/Kutta), independently from the tack. Through additional running rigging on our wing, you can modify the maximum wing thickness and the point of maximum thickness on the chord while sailing, thus allowing performance variations according to the different wind intensity and to different points of sailing. |
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