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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

    15.05.2008

    Gitana Eighty and Loïck Peyron on the attack.

    Setting out from Plymouth last Sunday, the fleet of thirteen Imoca monohulls are sailing across the middle of the North Atlantic after four days of racing. The leading group in The Artemis Transat 2008, currently led by Sébastien Josse, yesterday completed the first third of the course and is encountering light airs unfamiliar to this route. Back a…

    par Gitana

    Setting out from Plymouth last Sunday, the fleet of thirteen Imoca monohulls are sailing across the middle of the North Atlantic after four days of racing. The leading group in The Artemis Transat 2008, currently led by Sébastien Josse, yesterday completed the first third of the course and is encountering light airs unfamiliar to this route. Back at the head of the leading pack, the monohull equipped by Baron Benjamin de Rothschild is now in 2nd place, on the attack.

    This atypical zone is proving to be a real lottery for the solo sailors in The Artemis Transat 2008. A ridge of high pressure lies in their wake and now they’re preparing to tackle some new calm zones blocking the way over the coming hours. Indeed, the leader, Sébastien Josse, is already feeling the effects of them, as his speed at the latest position report and his diminishing lead bear witness. A phenomenon which is benefiting the skipper of Gitana Eighty, positioned just 11 miles astern at 1600 hours. 

    At night all the cats are grey…
    The skipper of BT, who pulled off a great move last night, benefited from the passage of a ridge of high pressure to get away from his pursuers. At daybreak, Loïck Peyron was holding onto 2nd position but had a deficit of around thirty miles on the leader: “Although conditions are very shifty and random as a result, the North-South positioning had a big part to play in last night’s action. You had to be attentive and spend a lot of time on deck. I don’t know how many gybes I made – around ten I think – to extract myself as best I could from all the obstacles dotted about Gitana Eighty’s course.” The solo sailors know only too well that this 4th night was just a taste of what’s to come over the next 24 hours: “the wind is beginning to ease gently but that’s nothing compared to what’s ahead. The evening will be complicated once again!” indicated Loïck Peyron.

    Wearing on the nerves, this situation requires maximum attention from the skippers. As an experienced sailor the skipper of Gitana Eighty knows what a considerable asset it is to remain lucid. With this in mind, the skipper has spent the whole day benefiting from the more stable conditions in order to rest and eat well. After a start to the course which Loïck Peyron himself concedes did not exploit the true potential of his boat, he is now right into his racing: “I wasn’t exactly on the pace over the first few days, but now it’s all going really well. There’s plenty of work on deck but everything is really working in sequence now aboard Gitana Eighty.”


    The black-out to begin on Friday evening
    On Friday at 1800 UT, the sailors and the public alike will make themselves familiar with the latest positions of the fleet in The Artemis Transat, prior to a day and a half with a complete position black-out. Indeed, the organisers of The Transat will not reveal any positions for an entire 36 hour period. This initiative, guided initially by a slight nostalgia as regards sailing in times gone by, will spice up the battle currently being played out in the North Atlantic. Naturally this black-out will be reminiscent of the first editions of this transatlantic race (formerly-Ostar) where the winner only found out about his or her performance once the finish line was crossed.
    On Sunday morning, at the first position report of the day, at 0600 UT, we’ll learn the new hierarchy and in particular the choice of courses adopted by each of the racers in the final sprint to Boston.
    The idea greatly appeals to the skipper of Gitana Eighty: “I think this black-out is a very good thing and an excellent idea by the organiser… To be honest I’d rather a 15 day black-out (laughs)! The last data (positions, headings and speeds) will be very important, as they’ll be our last link with our little playmates. I really like the notion that anything’s possible…”
     
    Ranking on 15th May at 1400 UT
    1. BT (Sébastien Josse) 1,859 miles from the finish
    2. Gitana Eighty (Loïck Peyron) 11 miles from the leader
    3. PRB (Vincent Riou) 18.9 miles back
    4. Generali (Yann Eliès) 25.8 miles back
    5. Foncia (Michel Desjoyeaux) 34.8 miles back
    6. Brit Air (Armel Le Cléac’h) 79.4 miles back