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Thread: Gitana 17 Maxi Trimaran

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    despondent correspondent Photoboy's Avatar
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    Gitana 17 Maxi Trimaran

    This morning, in the unusual setting of the palace of Tokyo, the Gitana Team presented its Ultimate trimaran christened Maxi Edmond de Rothschild. A sailing boat under construction that we were able to visit this week in preview, guided by its future skipper, Sébastien Josse and the general manager of the team Cyril Dardashti. This boat whose program, developed over five years, will have as a highlight a participation in the round the world solo and race reserved for giant trimarans and whose departure will be given Brest in two years. And his ambition is nothing less than flying around the world!

    Voiles et Voilers article on the progress of the new Maxi Trimaran Edmond de Rothschild

    By Philippe Joubin



    Image Maxi Edmond de Rothschild
    The Maxi Edmond de Rothschild was designed by Guillaume Verdier who also collaborates - and among others - with Team New Zealand in the
    frameworkof the America's Cup
    Photo @ Epron / Burlet / GITANA SA

    By entering the first of the vast halls of the Chantier Multiplast in Vannes, the visitor is seized by the gigantism. The boat that is built there is not ordinary! And the little smiles rogues displayed by Sébastien Josse and Cyril Dardashti are proof of this. Immediately, the two men placed themselves in front of the right stem of the central hull. And beyond the obvious narrowness of the lively works, a U-shaped hull, totally flat underneath and whose master-bau was so pushed back that it is at the level of the rear beam. Guillaume Verdier, the architect who signs this trimaran in the company of the design office of Gitana gave birth to a boat whose first ambition is to glide. Confirmation is provided by the two floats but especially the U-shape even more pronounced than the central shell, so that they end in a perfect rectangle at the end of a hull that reverses on its rear part. The assembly is evidently made of carbon and the reinforcements at the bottom of the three shells are composed of longitudinal beams along the entire length.

    The assembly of the boat currently in progress makes it possible to realize that the beams, particularly profiled, have small crosses at the request of the skipper to improve the passage in the sea. The floats are therefore very high with respect to the hull Central office.
    The appendages are not in the yard and those revealed in the drawings presented this Thursday are only views of artist, far from reality. The industrial secret is lurking ...
    "Sodebo is planning a new Ultimate yet has time to adapt its foils to the view of ours ," says Dardashti. So we do not show them yet. But they will be installed on the boat as soon as it is launched. "




    Sébastien Josse - Gitana Shipyard
    Sébastien Josse smiles in the construction site of his new toy.
    Photo @ Yvan Zedda / Gitana SA.

    Their shapes will be L-shaped and, coupled with T-rudders, will allow this Gitana- là, the 17th, to fly. " The experience with Gitana 15 (the former MOD70 that had been grafted with foils that became Maserati ) has allowed us to accumulate an enormous experience," says Josse. According to the calculations this tri-there should fly once the speed of 30 knots reached. But it will take barely 15 knots of real wind to reach this barrier. "
    However, this 32-meter long, 23-meter machine will weigh 15.5 tons! And that it will be endowed with a surface of sail of 450 m2 to the near for 650 to the carrying the only mainsail being of 296 m2. Five sails will constitute the wardrobe: GV, J0, J1, J2 and J3.

    3D boat presentation here:





    Offshore racing boat, the Maxi Edmond de Rothschild , will not fly permanently. " Everything will of course depend on the state of the sea," Josse goes on. Here we will have to find the instructions for use. No more time to fling from the canvas to go fast. From now on, it will be necessary to manage differently and find the brake. "Flying offshore will be a kind of booster effect depending on the conditions. Of course, the settings of the foils will be absolutely decisive and this sector of the automatic control correlated with the autopilot, crucial if any, is at the heart of the work of the team.






    Chantier Gitana
    Assembly of the giant trimaran.
    It is through the round hole at the front of the roof that will pass the mast whose root is inside.
    Photo @ Yann Riou / Gitana SA

    And if the Gitana team deliberately shortened by one meter its boat, initially planned to make 33 of it in order to enter the gauge of the category Ultimate, the technology developed by Gitana for this slaving of appendices n Is not authorized by regulation. Dardashti: "We took a step towards the Ultimate Collective by shortening the boat. Let them make one to us now. "

    Continuing the visit, one noticed the manic care brought to the aerodynamics of the platform. This is obviously the result of the work carried out by Guillaume Verdier with Team New Zealand in the framework of the America's Cup. " And if we had listened to him ," said Josse, " nothing would have gone beyond the bridge. Nevertheless, it was necessary to have a cockpit. The latter, in the form of a drop of water, is divided into two parts: the rear maneuver area with two off-centered helm stations and four winches only and, at the front, another of life for the skipper. The root of the mast is located in the roof and not directly on the deck so as to guarantee the aero and the maneuvers will return to the rear in chutes. In the central hull, very narrow, will be arranged a mini-zone of life for the races in crew.





    Josse Dardahsti
    Cyril Dardashti, on the left and Sébastien Josse on the right in the cockpit of the trimaran.
    Note on the left the bar column and in the center the locations for the four winches.
    Photo @ Philippe Joubin

    If this boat was officially presented in the framework of the Palais de Tokyo it is that its decoration was entrusted to the American street-artist Cleon Peterson. The owners of this machine, Ariane and Benjamin de Rothschild, in association with the Paris Museum of Modern Art, wanted to make it a work of art called "outside the walls". It is true that this Gypsy redesigned according to the channels of Peterson is very far from its classical traits. Like the car racing, with the Art Cars, decorated by renowned artists, this trimaran will be a sort of Art-Boat. And that gives breath and dimension to the competition sail.




    Edmond de Rothschild simulation sea
    3D projection of the Maxi Edmond de Rothschild flight.
    Photo @ Epron / Burlet / GITANA SA

    The Maxi Edmond de Rothschild , which began construction in October 2015, will be launched in July. It will then be aligned in the run of the Transat Jacques Vabre 2017 with Sébastien Josse and Thomas Rouxel. In 2018, he played the Route du Rhum before the world tour in Brest in 2019 and an attempt on the Jules Verne Trophy in 2020. Ambitious program for a boat without concession and totally atypical.

    Find here the video presentation of the Maxi Edmond de Rothschild by its actors:

    Maxi Edmond de Rothschild


    Baptismal Name: Gitana 17
    Length: 32 m
    Width: 23 m
    Light displacement: 15,5 tonnes
    Draft: 37 m
    Sails: North Sails 3Di
    Wing surface area downwind: 650 m2
    Sail area up close: 450 m2
    Energy: diesel engine with generator, wind turbines
    Appendices: 6
    Type: T-float rudders (2), L-shaped foils (2), central hull drift (1), T-
    Architects: Team Verdier / Gitana Design Office
    Constructors: Multiplast (platform) / Lorima (mast) / Persico (cap) / C3 Technologies (foils)
    Suppliers: Heol Composites, Harken, Pixel sur Mer
    Decoration: Cleon Peterson with Jean-Baptise Epron

    Three questions to Guillaume Verdier

    We took advantage of the presentation of Gitana 17 in the basement of the Palais de Tokyo this Thursday in Paris, which developed urban art in the framework of the attractive "Lasco Project" to meet the naval architect Guillaume Verdier Of New Zealand.

    Voilesetvoiliers.com: You are a member of the Emirates Team New Zealand design team. Will the developments on the foils of the Class AC influence your choices on the maxi Edmond de Rothschild?
    Guillaume Verdier: Of course! We have this chance with my team (Team Verdier) to have been able to do this work of clearing on the America's Cup. We do not go into the unknown, because besides the AC 45 Turbo then the Class AC, we were able to also rely on a very beautiful model that is MOD 70 equipped with foils. Not to mention the Gitana Team Studies Office under the direction of Antoine Koch, we are six on the design of maxi Edmond de Rothschild - Romaric Neyhousser, Hervé Penfornis, Morganne Schlumberger, Véronique Soulé, and a young New Zealander, Bobby Kleinschmidt, which we will hear very soon.

    Voilesetvoiliers.com: The automatic control of the appendages of the Class AC allows to "move" the foil several times per second. It will be possible on the maxi Edmond de Rothschild?
    GV: Yes, that's the goal of course. Then it is more political, because the "Collective Ultim" does not authorize to this day the enslavement of the foils. But do not use this technology, it's a bit like going without flaps on a plane wing ... These boats deserve to be enslaved.

    Voilesetvoiliers.com: What is the push in tons on foils on board such a multihull?
    GV: It's about 30 to 35 tons of thrust with the foils, and it's not nothing! But if flaps (flaps) are installed on the rudders, the push on the latter is limited to 200 kilos. The idea is to fly the boat in optimum conditions - medium wind and flat sea - but also to make it more "wise" in archimedean mode, especially in the sea.

    Interview by Didier Ravon
    " I just found out my nest egg has salmonella"



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  2. #2
    Doughnut Magnate Donut Town's Avatar
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    Love the graphics. Cleon Peterson is a well known graffiti/street artist in the vein of Keith Haring. It's great seeing street art starting to make its way onto boats.

    www.regattaboatgraphics.com

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