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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

    03.04.2007

    Marie Galante within 2,000 miles….

    The outcome of this first transatlantic race of the year is proving very tough to call. Led by Armel Tripon on the leading vessel Gedimat, two boats are following the orthodromic (direct) route. Currently lying 3rd in the general ranking, Thierry Duprey du Vorsent is on a route slightly more to the south. Two other groups, made up of the majority o…

    par Gitana

    The outcome of this first transatlantic race of the year is proving very tough to call. Led by Armel Tripon on the leading vessel Gedimat, two boats are following the orthodromic (direct) route. Currently lying 3rd in the general ranking, Thierry Duprey du Vorsent is on a route slightly more to the south. Two other groups, made up of the majority of the 25 Figaros still in the race, have also chosen a southerly trajectory, an extreme one in the case of Nicolas Troussel on Financo, who is attempting to go around the anticyclone, thereby picking up the trade winds that will take them as far as Marie Galante. In short, at the moment it is still anybody’s race for the taking…

    In fine fettle, the Gitana Team skipper is currently in his 10th day of racing and delighted to have now come within 2,000 miles of the finish line.

    Thierry Duprey du Vorsent is still very much in the reckoning. Although there’s a long way to go yet, he has had a magnificent race since departing from Belle-Ile-en-Mer. In perfect control of the boat and his physical condition thus far, the man from Cancale is savouring these hours spent at sea in the upper echelon of the race ranking.

    Thierry Duprey du Vorsent, skipper of Domaine du Mont d’Arbois in today’s midday radio chat:

    “Since yesterday evening, the weather conditions have been quite bizarre. I saw the front descend quite clearly at nightfall: first, a dense stormy band and then large squalls. The wind picked up to 37 knots, and then the transition phase snapped in. The wind switched from a southerly direction to west south-west, while dropping quite fast to 8 or 6 knots. By the early morning, there were only 4 knots of wind. I’m now preparing myself for the transition to the next front with a wind that has risen back up to 20-22 knots and a sea that’s starting to be choppy. I’ve only got two tricky passages to negotiate before I could, in theory, reach the trade winds that will take me as far as Marie Galante. My morale is very good, even if the race is far from finished. The field’s still open and I prefer being where I am. Everyone’s starting to see the results of their earlier options and it’s an interesting configuration in as much as there’s a large gap between first and last places in the ranking (ed’s note: over 500 miles separate Armel Tripon from  Eric Peron at the rear of the fleet). But that doesn’t necessarily mean a lot at this stage, as the race will be won or lost by the way the wind shifts are exploited. The only slightly irritating aspect is that the most southerly contingent will finish up with a sun tan, whereas we might not be so lucky!”


    Ranking 3 April at 3:00 pm :

    Place – Bateau / Skipper  – Latitude / Longitude – Dist. 1er

    1st –  Gedimat / Armel Tripon  – 36 39.03′ N / 33 55.64′ W
    2nd –  Suzuki Automobiles / Eric Defert  – 37 23.89′ N / 33 44.09′ W à 32.5 milles
    3rd –  Domaine du Mont d’Arbois / Thierry Duprey du Vorsent – 34 22.64′ N / 31 00.83′ W  à 54.4 milles
    4th – Theolia / Robert Nagy – 32 57.96′ N / 30 00.72′ W à 59.1 milles
    5th –  Art Immobilier Construction / Daniel Dupont – 34 17.36′ N / 29 56.01′ W à 100.1 milles
    6th –  Luisina / Eric Drouglazet – 28 54.74′ N / 26 56.85′ W à 132.7 milles
    7th –  Les Mousquetaires / Bertrand de Broc – 28 54.82′ N / 26 50.81′ W à  137.6 milles
    8th –  Groupe Céléos / Ronan Treussart – 28 50.46′ N / 26 34.87′ W à 149.5 milles
    9th –  A.ST Groupe / Marc Emig – 28 54.41′ N / 26 32.11′ W à  152.4 milles
    10th –  Cercle Vert / Gildas Morvan – 27 44.99′ N / 25 54.15′ W à 166.5 milles
    ….