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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

    26.11.2008

    The South is a long time coming.

    The Imoca monohulls are continuing their descent of the Atlantic, now resolved to the fact that they will have to skirt around the Saint Helena High, which is still blocking the route to the Deep South. Wedged onto the same tack since exiting the Doldrums, the days are proving to be much of a muchness amongst the solo sailors. However, on this 17th…

    par Gitana

    The Imoca monohulls are continuing their descent of the Atlantic, now resolved to the fact that they will have to skirt around the Saint Helena High, which is still blocking the route to the Deep South. Wedged onto the same tack since exiting the Doldrums, the days are proving to be much of a muchness amongst the solo sailors. However, on this 17th day of racing, the wind has eased and the still big seas are now more manageable for the head of the fleet. This trend is set to continue or even intensify with the approach and the rounding of the zone of high pressure later this week.

    Loïck Peyron is still in pole position, shadowed by Sébastien Josse, some 18 miles behind midway through this afternoon. It should be noted though that in perfect hunting mode, the skipper of BT has gained some slight separation to the east of Gitana Eighty’s course, where he will be ready to pounce. Back into the top three after a short night away, Jean-Pierre Dick has conceded 40 miles to the monohull equipped by Baron Benjamin de Rothschild.

    “It’s been 48 hours that conditions haven’t been very amusing. It’s slamming a lot and the conditions are hard, especially for the boat and a little for the skipper too… However, I mustn’t complain, once again there are some who are worse off than me!” Loïck Peyron clearly has Jérémie Beyou in mind when he says this. The latter was the victim of a damaged rig (spreaders) last Sunday, and the skipper of Delta Dore then diverted to Brazil to attempt to make repairs and head back into the race. Unfortunately, his arrival in the port of Recife last night confirmed his worst fears: the damage caused by this breakage is too extensive and the sailor has been forced to retire. This sad news brings the number of solo sailors who have had to abandon the Vendée Globe 2008-2009 to five, leaving twenty-five still racing.  

    Despite the ‘regatta racing’ mode stamped by the solo sailors since setting out from Les Sables d’Olonne on 9th November, you have to bear in mind that the Vendée Globe is more reminiscent of a marathon. The reasons for this are that on a round the world lasting nearly three months, it’s the sailor’s stamina and capacity to keep up the pace for the duration, which will make the difference. With this in mind, preserving the gear is a permanent concern: “I’ve toned it down a bit because it serves no purpose to go too quickly when the boat is slamming so much”.  It’s the same scenario for Sébastien Josse, who admitted having eased off the pace last night in big seas, so as not to put the boat under too much stress.
    However, in the afternoon the duo, who have been leading the way for what is already 14 days, had picked up the pace again as their respective speeds at the 1600 hour ranking bear witness: 16.5 and 16.1 knots. This would seem to indicate that Loïck Peyron and his closest rivals must be benefiting from a sea which is more favourable to acceleration.

    “We’re all in the same little train… my leadership is the result of a combination of well managed circumstances but we’re all very close together so that doesn’t mean a great deal. To be in the lead isn’t a pressure, or at least that’s not how it feels, because for the time being there aren’t any big tactical choices to be made. This zone of high pressure is going to be a right carry-on and I have the feeling we’re all going to aim pretty much at the centre.” So although Loïck Peyron is leading the way, this situation of being the first in the rope party doesn’t seem to be preventing him from sleeping and he still seems to have a great appetite for both eating and reading: “I’m in the process of cooking up some bacon and eggs…” declared the skipper of Gitana Eighty to open the radio session. He went on to explain a few minutes later: “I’ve forty books in stock and I’m reading at the moment! You just can’t put them down but it airs the grey matter.  I’m just finishing volume 3 of “Millennium”… (successful trilogy by the Swedish author Stieg Larsson). I have to say that it’s a great book which is really compelling. So much so in fact, that I put off going out to trim for a while as I’m so caught up in my reading.” These anecdotes demonstrate that after the ‘wave-jumping’ atmosphere of recent days, life aboard the monohull in the colours of the LCF Rothschild Group is gradually returning to normal.

    Ranking on Wednesday 26th November – 1600 hours (French time)
    1. Gitana Eighty (Loïck Peyron) 19,982 miles from the finish

    2. BT (Sébastien Josse) 18.3 miles
    3. Paprec Virbac (Jean-Pierre Dick) 40 miles
    4. Brit Air (Armel Le Cléac’h) 44 miles
    5. PRB (Vincent Riou) 56.9 miles
    …