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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

    29.01.2008

    Off the coast of Buenos Aires.

    Since Sunday afternoon, Gitana 13 has taken advantage of a sustained southeasterly wind to once again chalk up boat speeds more in keeping with its potential. Still cruising along the Uruguayan coast and nearing Argentina—the route chosen to keep a good distance from the Saint Helena high-pressure system—Lionel Lemonchois and his nine-man crew are…

    par Gitana

    Since Sunday afternoon, Gitana 13 has taken advantage of a sustained southeasterly wind to once again chalk up boat speeds more in keeping with its potential. Still cruising along the Uruguayan coast and nearing Argentina—the route chosen to keep a good distance from the Saint Helena high-pressure system—Lionel Lemonchois and his nine-man crew are preparing to enter another zone of unstable winds.

    After several days during which they covered a small number of miles, the maxi-catamaran fitted out by Baron de Rothschild reached its stride again yesterday. “What a pleasure it is to do another day of 600-plus miles,” said Dominic Vittet, the onboard navigator. “It had been awhile since we’ve experienced that, it’s good for our morale knowing that we’re again picking up the pace. We’re still being careful, in order to protect the boat, but we’re also in a race against the clock to get from New York to San Francisco as quickly as possible!” said Vittet. 

    The clear sailing along the Latin American coast will be interrupted on Tuesday when the team encounters a stormy low-pressure system. The loss of speed is already perceptible this morning, as Gitana 13 jibed toward Buenos Aires, the capital of Argentina. Fortunately, the maxi-catamaran should only be affected by this system for a few hours. According to Sylvain Mondon’s forecast, Lemonchois and his crew could enter catch another set of solid high-pressure system winds in the evening to help carry them toward Cape Horn.

    Health troubles at sea

    Léopold Lucet is both the No. 1 and the medical onboard Gitana 13. In order to meet the requirements of this latter position, last year he completed a training course provided by the European Health Training Institute. The training course, bearing the evocative name ATMSI (medical techniques in situations of isolation), was aimed at familiarizing our medical apprentice with basic health techniques. Part of the course was also devoted to diagnosis and to implementing the appropriate solutions to so-called minor health problems.

    Léopold put the theory to the test last week, when Nicolas Raynaud, trimmer and onboard photographer, bumped his head while snapping photos on deck and got a gash above his nose. Treatment: five stitches to close the wound. Everything is okay now. Thanks to the expert care provided by our friend Léo, the cut has healed and there is no longer a risk of infection.