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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

    31.10.2003

    Ready to get down to it….

    Never before has the Gitana Team been as confident before the start of a race. The boat is perfectly keyed up with her new set of sails and following her latest weight loss session in the yard.

    par Gitana

    Never before has the Gitana Team been as confident before the start of a race. The boat is perfectly keyed up with her new set of sails and following her latest weight loss session in the yard.

    Both skippers, Lionel and Marc, together with the whole of the technical team are calm in the way express their confidence in the boat. The new deck layout following the  removal of the ears and the new set of D4 sails designed by the Incidence master sail maker in La Rochelle will enable the Gitana Team to give free rein to their skill and determination over the 5,188 miles separating Le Havre (France) and Salvador de Bahia (Brazil).

    Lionel : « We did not design special sails for Gitana, but the  expertise of the Incidence sail loft with multihulls (ithe loft has made sails for 12 out of the 14 multis in the fleet) meant that we have been able to make a wardrobe which is perfectly suited to Gitana’s structure. The new deck layout has meant that that we have been able to trim the sails better and have thus been able to make better use of the boat’s potential. Never the less, the start is likely to be touch and go given the tough weather conditions forecast for the first three days of the race. We’re going to have to take things steady and be really careful until we are out of the Channel and even beyond. But Gitana has proved many a time during our training sessions and previous races that she was highly seaworthy in rough weather.“

    Weather

    Sylvain Mondon, Forecast Engineer with Météo France and Gitana’s weather consultant : “Conditions for the multihull start at 15h00 on Sunday 2nd November are slightly less critical than expected will never the less be remaining strenuous for both men and material. But these are quite normal conditions for the time of year. A steady south-westerly blow, force 6 to 7 with strong rain and a rough sea. The start for the 14 multihulls entered in the Transat Jacques Vabre 2003 should be spectacular indeed, requiring masterly technique on the start line. Early in the evening, as the fleet passes the Cotentin headland, the wind should increase in strength to force 7 to 8. Repeated gusting are forecast throughout the night and the sea will be very hard going with a wave height of 2 metres increasing to 5 m on Monday morning. All the ingredients necessary to force the skippers’ to take things steady at the start of this race. “

    Never the less, the race organisers reserve the right to exercise their discretion to  postpone the multihull start at the last minute should the weather worsen still further, putting the yachtsmen’s safety in danger. Most important of all, a transatlantic race should remain a sporting challenge and not turn into a battlefield before the race has hardly begun.

    Press contact on location : François Seguin 06 80 730 004 –  Anne Massot : 06 16 19 12 20