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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

    02.12.2008

    Southern airs!.

    On this twenty-third day of racing, the atmosphere is still one of close contact sparring in the Vendée Globe 2008-2009, even though the leading group is now sailing in the forties, which is a zone famed for being the windiest on the globe due to the lack of landforms. Relatively spoilt by the weather over the past few hours, the solo sailors are h…

    par Gitana

    On this twenty-third day of racing, the atmosphere is still one of close contact sparring in the Vendée Globe 2008-2009, even though the leading group is now sailing in the forties, which is a zone famed for being the windiest on the globe due to the lack of landforms. Relatively spoilt by the weather over the past few hours, the solo sailors are heading towards the Atlantic ice gate, which the frontrunners are set to reach in 36 hours time. Aboard Gitana Eighty, Captain Peyron’s birthday feast is but a distant memory and last night’s forced ‘gennaker fishing’ certainly wasn’t an ideal gift…
    Although Sébastien Josse is still leading the way around the world, behind him there has been an upset in the hierarchy overnight, with Yann Eliès slipping by into second place which had been held up till then by the monohull equipped by Baron Benjamin de Rothschild. Hard to contact yesterday, this Tuesday proved more favourable for a conversation between Loïck Peyron and Paris Race HQ, and enabled an explanation about nocturnal events at the top of the ranking: “All’s well aboard. It’s a little like the south… I had a slight issue with my gennaker which got wrapped around the keel last night. It took me a few hours to get myself out of the situation. My sail is intact but I’m going to have to climb to the masthead to change the halyard”. So there we have the reason behind this slight loss of ground; a halyard which is hard to operate and a 300 m² sail, which had to be hauled onto the deck of Gitana Eighty by sheer brute force… All that took a fair old while and zapped the energy so it was only natural, a few hours after this exploit, that the fatigue of the skipper of the monohull in the colours of the LCF Rothschild Group was evident: “I’ve been in my bunk for a few hours because I really need to rest”. At the same time yesterday, it was the leader Sébastien Josse who admitted to a need to ease off the pace. It has to be said that pole position is certainly an onerous task when the competition is breathing down your neck. Added to that is the impressive series of gybes – seven in 8 hours on Sunday – which can sometimes cause a sailor as talented and honed as he is, to drop off the pace slightly. In conditions like these though, experience is the best guide and should enable Loïck Peyron to regain the energy which very quickly characterises him.
     
    As regards the weather, the leading group is continuing to make headway at the leading edge of a cold front and is reaping the benefits of some downwind conditions of between 20 and 25 knots. Since their entry into the antechamber of the roaring forties and the Deep South itself, the solo sailors have had to make a series of gybes, occasionally going in search of more speed to the south or favouring the direct route in a bid to gain some E’ly separation. It’s a change of format today for the skipper of Gitana Eighty as well as his rivals, as they will be able to leave the manœuvres to one side and stick on port tack as far as the Atlantic ice gate. This relatively comfortable digression will enable them to find their marks for Deep South mode: “I’ve lost a bit of time on the technical details so I’m gradually going to have to get into the southern groove. The crunch is going to be knowing which is the right conduct to adopt as the Vendée Globe is very different to the one I encountered during my previous participation!” Suffice to say straightaway that the technical details Loïck Peyron was alluding to in the daily radio session certainly won’t terrify the competition, as these are all part and parcel of daily life for the sailors of these prototypes. Indeed, these latest generation 60 footers are pure technological concentrates.
     
    As a result, the coming hours will be filled by a few slots of rest aboard the monohull in the colours of the LCF Rothschild Group, so as to ensure the skipper is in great shape to tackle the first safety gate. Beyond that the sailors will be on their guard at all moments, the organisation having warned competitors of the presence of icebergs around 500 kilometres after this safety barrier. There is no doubt then… we have reached the south!
     
    At the 1600 hour ranking, Sébastien Josse was still comfortably settled in pole position, though Yann Eliès had clawed back a few miles on him. As for third place, that had gone to Jean-Pierre Dick after he managed to pip Loïck Peyron to the post, the latter now around ten miles astern.
     
    Ranking on 2nd December – 1600 hours (French time)
    1. BT (Sébastien Josse) 18,577 miles from the finish
    2. Generali (Yann Eliès) 37.7 miles from the leader
    3. Paprec Virbac (Jean-Pierre Dick) 56.4 miles
    4. Gitana Eighty (Loïck Peyron) 64 miles
    5. Veolia Environnement (Roland Jourdain) 65.2 miles
    6.PRB (Vincent Riou) 72 miles
    (…)