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  • Gitana 18
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  • Retractable Y-shaped foils, adjustable in three dimensions

    Inspired by the appendages of the America's Cup foiling monohulls, these Y-shaped foils have a wingspan of over 5 metres. They are designed to generate powerful lift, increase power and offer a wide range of adjustments to optimise flight at every point of sail and in all conditions. Beyond their impressive size, these foils feature many unique innovations.

    Revolutionary U-shaped rudders

    These are probably the most visually striking innovations on the new Maxi Edmond de Rothschild. To fly high above rough seas while maintaining control, the team wanted very long rudders that would remain in contact with the water. The challenge is that longer rudders tend to flex under load, severely affecting steering and the efficiency of their lifting surfaces. A new geometry was needed to give these appendages maximum stiffness, resist cavitation and ultimately improve control of the boat and make better use of its power. The result is a set of U-shaped rudders over 4 metres long, a metre longer than those on Gitana 17. Their shape, reminiscent of a tripod or an inverted π, is only the visible part of what makes them so distinctive.

    A daggerboard optimised to stabilise the boat and limit cavitation

    With its wide span, the daggerboard resembles an aircraft tail assembly, with two adjustable flaps: one on the vertical section and the other on the horizontal section, the distinctive “manta-ray wing”. On Gitana 18, the innovation is to position this wing behind the vertical part of the appendage, rather than directly beneath it, to minimise flow disturbance and cavitation.

    Gitana 18’s daggerboard

    Rig: adjustable spreaders to control mainsail power while sailing

    Gitana 18’s mast is 1.50 metres taller than its predecessor’s. The boom is also shorter, creating a more slender sail plan. The major innovation is a set of spreaders that can be adjusted while sailing to bend the mast fore and aft. Actuated by hydraulic rams, these spreaders can pivot through 35 degrees to adjust the bend in the middle of the mast. This unprecedented system allows the sailor to control mainsail power: adding depth in light winds to take off sooner, or flattening the sail to reduce power at high speed or in strong winds. Adjusting the depth, and therefore the power, of the mainsail can also save a solo sailor time and energy by reducing the need for risky manoeuvres or headsail changes.

    Central hull:
    an integrated, structural coachroof

    The naval architects and Gitana design team wanted an exceptionally stiff, structurally robust platform. This applies both to the floats, which must withstand heavy loads from the foils and rudders, and to the central hull, which is subject to torsion. The enclosed coachroof is integrated into the hull and contributes to its structural strength. Inside, the cockpit brings all sail-handling controls together, with ergonomics shaped by many hours of design and development. The coachroof also stands out for the number and size of its windows. This configuration meets the visibility requirements of the Ultim class rules and gives sailors the best possible view to keep a visual watch.

    Gitana 18’s coachroof

    17.03.2004

    Gitana XI launched.

    The 60 pieds Open multihull, Gitana XI, was launched at 11:00am this morning in Port-La-Forêt in Brittany (France). An emotional moment for the Gitana Team, particularly for her shore team brought together for the occasion at the CDK Technologies shipyard, where all of the paint, composite, disassembly and reassembly work was carried out. After hav…

    par Gitana

    The 60 pieds Open multihull, Gitana XI, was launched at 11:00am this morning in Port-La-Forêt in Brittany (France). An emotional moment for the Gitana Team, particularly for her shore team brought together for the occasion at the CDK Technologies shipyard, where all of the paint, composite, disassembly and reassembly work was carried out. After having been immobilised ashore for three months, from Friday onwards Gitana XI is going to be able to start afresh and attack the first chapter of her preparatory programme, namely « Sailing » in preparation for the ORMA 2004 season which starts with the Grand Prix in La Trinité-sur-Mer (France).
    A successful “race against the clock”

    Although the Gitana Team has two boats, two skippers and two distinctly separate sailing teams, there is just one single technical team for both multihulls. Jean Pierre Trottet and Léo Lucet work on the fittings and hydraulics, Laurent Bourgues, Pierre Le Diberder are in the composites department along with Jean Charles Godard. Young and enthusiastic, they work out of the spotlight in preparing these Formula 1 racing machines. Part of the success in a racing season rests on their shoulders. Gitana XI’s nets were fitted by Jean Yves Le Govic (Napo), an expert in the area and in charge of logistics for Gitana XI. Only the on-board computers, electronics and rigging/lines have been placed in the hands of three sailing members of the team, respectively Olivier Wroczynski (Zolive), Christophe Lassègue, and François Denis (Bambino).

    « With today’s launch of the « XI » and of the « X » in a couple of weeks, Gitana Team’s shore team has just pulled off some pretty amazing feat, emphasises Yann Marilley, Team Manager of the Gitana Team. In under three months, we will have launched two boats which will be perfectly prepared for the 2004 season. In this race against the clock, the twelve people who comprise the Team have worked on both boats to adhere to our strict schedule. A remarkable effort given that the boats were located in two different sites, Gitana X on our base in La Trinité sur Mer (Morbihan) and Gitana  XI, 100 kilometres away, at the CDK yard in Port-la-Forêt (Finistère). »

    Wide-ranging revisions, paint, structural modifications, new appendages

    The major modifications carried out on both boats concern mainly the structure and the appendages in the case of Gitana X, and on the paintwork, appendages and the mast in the case of Gitana XI. For 2004, the « X » has been fitted with a new winged foil section on the central rudder, a system used on the trimaran Géant, and new curved foils. The companionway leading to the navigation station has also been modified on the « X » at the request of skipper Marc Guillemot, in order to increase the living space inside the central hull and stowage space for the sails. The « XI » was totally stripped and has been completely repainted to sport the colours of her new owner and shall sail this year with fittings which have been either completely revised or changed, new curved foils, a new mast, new sails and a deck layout which has been modified by skipper Lionel Lemonchois.

    * Foils : blade sections under the floats providing lift. Current trend is towards curved sections to reduce the tendency to drift and reduce clutter.

    Mission accomplished for the XI

    CDK Technologies was not chosen by chance for the preparation of Gitana XI. This yard specialises in composite materials and presided over the construction of the boat in 2001 born under the name of Belgacom, acquired in December 2003 by the Baron Benjamin de Rothschild and placed in the hands of Norman skipper Lionel Lemonchois for 2004. « Three major tasks were accomplished on Gitana XI on a hull which was completely stripped down both inside and out,”  explained boat captain Jean Le Houérou Kérisel, formerly of Team Belgacom, a man who knows the Van Peteghem-Lauriot-Prévost design inside out. “The first task to be carried out by our technical team involved disassembling, revising and reassembling all of the boat’s equipment once a complete paint job had been done, equipment including hydraulics, fittings engine and electronics. The two other tasks were the new paint job in the Rothschild family colours and work on the structure to incorporate new foils, work which was contracted out to CDK. More than 3 000 hours of labour went into getting the job done – an ungracious and arduous job if ever there was one – involving pure « elbow grease » in a near permanent cloud of dust and toxic fumes. » Paintwork and composite are often incompatible and so CDK and the Gitana Team had to do a fair bit of closely calculated juggling to finish on time. After having re-stepped the mast, on Wednesday and Thursday, Gitana XI will be sailing back to her home port of La Trinité sur Mer on Thursday.

    Two more weeks in the yard for Gitana X

    As fifteen or so men were busy in Port-la-Forêt around Gitana XI, in La Trinité sur Mer, Gitana X was undergoing three major modifications under the attentive eyes of Marc Guillemot and the boat captain, Olivier Wroczynski, one of the pillars of the technical and sailing team on the « X » boat since 2002. The work done on Gitana XI was important, that carried out on Gitana X was also ambitious, requiring close on 2 500 man hours occupying a team of five full time. Olivier explains : « We are still in the full throes of optimizing the boat, and we are hoping that the three months we have just spent working on her will bring about important changes in the way she behaves generally. The changes to the companionway which Marc asked for, the fitting of lips to the daggerboard casing, the addition of new curved foils and a winged central rudder should make her more stable and easier to handle. » Gitana X is to be put back into the water at the end of March, beginning of April and both crews should be in Port-la-Forêt at the same time, where the first joint training session with other multihulls entered in the Orma circuit 2004 is to be held from 5th to 8th April.

    A happy event in the Gitana Team

    On March 5th at the maternity unit in Vannes hospital, the wife of Pierre Le Diberder gave birth to a son by the name of Milo, a fine way to celebrate the launch of Gitana XI. Pierre Le Diberder is a composite specialist who recently joined the technical department of the Gitana Team. Pierre is currently working on the « X » and lives in Baden with Soizic, a couple of miles from La Trinité.