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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

    27.10.2006

    The sea seen from land.

    At 13:02 on Sunday 29 October, Gitana 11 and Gitana 12, along with 10 other Orma trimarans, will set sail in the 8th edition of the Route du Rhum. While the twelve skippers will find themselves alone aboard their boats from 12:00 onwards for ten days or so, back on dry land, an entire team will operate a 24-hour vigil to ensure the weather monitori…

    par Gitana

    At 13:02 on Sunday 29 October, Gitana 11 and Gitana 12, along with 10 other Orma trimarans, will set sail in the 8th edition of the Route du Rhum. While the twelve skippers will find themselves alone aboard their boats from 12:00 onwards for ten days or so, back on dry land, an entire team will operate a 24-hour vigil to ensure the weather monitoring and to intervene at any moment in support of the solo sailors.

    The trimaran preparation phase has required both the time and energy of the skippers and, alongside them, a full technical team has toiled to adapt the multihulls to this transatlantic race and to meet the specific requests of each single-handed sailor. It was a task that took several weeks, not to say several months, in alternation with ocean forays designed to test the platform. Then came the last few days of fine tuning in Saint-Malo under the glare of the media spotlight which can destabilise even the steadiest temperaments. Now the hour of departure approaches and the soloist has to tune into the ocean whilst at the same time responding to the most mundane of questions: it’s a mental balancing act that requires singular skill… For single-handed multihull sailing can be likened to a high-speed train hurtling along a rough old track without stopping at any stations, and doing so for ten/twelve days with a single driver who has to watch out for other traffic, operate the points, provide the catering service and maintain the machinery… 

    Everything ship shape

    In the days leading up to the start what is most important is the performance of a final check on the boat’s communication, computer and electronic systems. Within the Gitana Team, there is always a boat captain and his assistant among the crew: William Fabulet and Sébastien Thetiot for Gitana 11, Léopold Lucet and Richard Loncle for Gitana 12 take care of any last-minute “tweaks” alongside Richard Bastide, the team’s embedded systems specialist (Inmarsat, Iridium, Fleet, image sending, etc.). By this point, the soloists need to have acquired a perfect grasp of the instrumental processes so that they can access them very fast and waste as little time as possible once the starting line has been crossed. For the two Gitanas, the last four days before the start sees a meeting held every morning to analyse the weather information with the skippers Lionel Lemonchois and Thierry Duprey du Vorsent, in the company of Sylvain Mondon from Météo France and the “routers”, Mayeul Riffet and Yann Guichard, who track the boats from on land, and also Loick Peyron, who is supervising the Gitana Team’s strategy.
    The good news to emerge from Saint-Malo over the last few days is that the weather conditions for the start will be very manageable, if a little rough and changeable. Essentially, the breeze should remain gentle and variable for the exit from the Channel and, up until the Azores, the trajectory should be straightforward. The atmosphere around the Vauban Basin is calm with no perilous low-pressure front exiting the Channel, as was the case four years ago and on other Route de Rhums. The forecast also alters the skippers’ mental preparation as they prepare for the drink….Yo, ho ho and a bottle of Rum!

    Ensuring a smooth start!

    For the start, two Gitana Team dinghies will be on the water and three crewmen will board them from the trimaran just ten minutes before the cannon sounds: they will disembark after having raised the sails and carried out the final adjustments to help the skipper. Like the majority of the other technical teams, the Gitana Team has loaded two vans with two dinghies which will leave at 15:00 on Sunday for Perros Guirec so as to organise a possible pit stop should one of the boats require it. The idea here is to be able to reduce to a minimum the detour taken by the boat and the length of any stop. The team can very speedily pick up a spare sail or a piece of rigging, change electronic equipment or a defective automatic pilot, etc…
    Once the trimaran exits the Channel, the technical team stays on stand-by for possible intervention abroad, namely at the tip of Spain, in Portugal or in the Azores: Jean, Olivier, William and Léopold thus form a “hit squad” capable of resolving all manner of technical problems.
    On land during the race, a weather assistant collects the daily reports and the information from all over the world in order to have a range of sources that’s as diverse as possible. The “land routing” team then establishes, in conjunction with the skipper, a general strategy that takes into account the position of the other competitors. “Virtual gateways” are indicated for the skipper to pass through within a given time, or whether it is better to go as fast as possible or simply stick to a precise course.
    The solo sailor can call the team at any time of day or night through the intermediary of an allocated contact for all interventions concerning the boat or the weather situation on the water. In fact, the majority of phone calls are made in the sea-land direction so as not to disturb the skipper who would have to disrupt his routine in order to answer a call.
     
    After that, it’s a case of steaming into the home straight and getting ready for the finish in Guadeloupe…

    Gitana Team shore crew :

    *Loïck Peyron, General director
    *Jean Le Huérou-Kérisel, technical director
    *Cyril Dardashti
    *Olivier Wroczinski
    *William Fabulet et Sébastien Thetiot, Gitana 11
    *Léopold Lucet et Richard Loncle, Gitana 12
    *Laurent Rivals, logistic
    *Jean-Pierre Trottet, Daniel Le Digabel, Marie Dixneuf
    *Richard Bastide
    *Benoît Piquemal
    *Sylvain Mondon, météo
    *Yann Guichard
    *Mayeul Riffet