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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

    14.05.2006

    The final throw of the dice!.

    As the first five trimarans negotiate the Balearic archipelago this Sunday morning, three different bids for glory are underway. The two leaders, Groupama 2 and Banque Populaire IV, remain close together having left Majorca to their east, Géant has just passed between Spain and Ibiza, while the two Gitanas are opting for a path to the east of the i…

    par Gitana

    As the first five trimarans negotiate the Balearic archipelago this Sunday morning, three different bids for glory are underway. The two leaders, Groupama 2 and Banque Populaire IV, remain close together having left Majorca to their east, Géant has just passed between Spain and Ibiza, while the two Gitanas are opting for a path to the east of the islands. With 300 miles still to go and a windless bubble to cross, the first three to reach Nice is still far from decided…

    In the ocean off the Balearics this Sunday, we are witnessing the first and probably the last major throw of the dice. For since the start of the race in London last Monday, the weather conditions have given the sailors few opportunities to make their navigational talents count. A small tactical coup off the English coast or a slight advantage obtained in the Bay of Cadiz, and that has been thatl!  But now, as the end of the race draws near, the reduction of the route has thrown the contest wide open by giving the vessels a free choice on how to pass the Balearics. And consequently, the pursuers of the leading duo have thrown caution to the wind as they seek to obtain some advantage before the arrival in the Bay of Nice. This especially applies to the two Gitanas which endured a slightly less sustained wind than the two leaders overnight, particularly Eleven who, in the early hours of the morning, saw Twelve pass within a few lengths!
    There remains a primarily windless zone to be crossed to the north of the archipelago and the Gitanas appear to have chosen to head east to go around it. Whatever happens, the first trimarans are not expected in Alpes Maritimes before Monday afternoon at the earliest, as the end of the 2,075-mile route promises to be laborious in the extreme… In any case, the options taken by these three groups can no longer be changed: once they’ve set out on a particular course (to the west, the centre or the east), there is no possibility of going back on their decision, especially with the light air forecast for this Sunday afternoon. The results of their choices will therefore only become clear on Monday morning, after what promises to be a highly stressful night for the sailors.

    Thierry Duprey du Vorsent onboard Gitana 12, Sunday at 08:30:

    “We’re 35 miles southwest of Majorca. The choices available are very different… But we’ve gained ground overnight courtesy of successive changes of tack accompanied by a 17-20-knot north-easterly wind on short choppy seas and a superb full moon! During the night, I saw a small red light approaching our starboard side… Our batteries were low due to not having been able to run the motor because the central hull was still above the water, so we hadn’t lit the lights. I turned them on and was amazed to see that we’d passed Gitana 11 six lengths behind… Incredible!
    This morning, we’ve still got a good east to northeast breeze and it’s time to make a few choices: we’re probably going to pass between Minorca and Majorca as in a few hours, a high-pressure bubble’s going to form to the north of the archipelago. We’re going to try to pass as far as possible to the east of this windless zone. Then, there shouldn’t be too much wind along the French coast: it’s not going to be easy to negotiate… But we won’t get a chance to pass the leaders if we stay way back behind them like this. This is the first time we can start to take off our thermals and oilskins; we’ll need to get the sun tan lotion out this afternoon! It’s likely to be a red-hot afternoon…”