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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

    13.11.2016

    Belting along, whilst there’s breeze.

    For the past 24 hours, Alex Thomson and Sébastien Josse have posted the best average speeds of the fleet: 18.7 knots for Hugo Boss and 18.4 knots for Edmond de Rothschild. These two foilers are slipping along in what is still a steady NE’ly trade wind, though it is set to ease over the coming hours, heralding their proximity to the doldrums, which…

    par Gitana

    For the past 24 hours, Alex Thomson and Sébastien Josse have posted the best average speeds of the fleet: 18.7 knots for Hugo Boss and 18.4 knots for Edmond de Rothschild. These two foilers are slipping along in what is still a steady NE’ly trade wind, though it is set to ease over the coming hours, heralding their proximity to the doldrums, which is sprawled across their path straight ahead. Since the start of the weekend, there has been a certain amount of reshuffling of the hierarchy among the leaders. Indeed, following on from his passage through the Cape Verde archipelago, at 17:00 GMT on Saturday, Alex Thomson took back control of the fleet from Armel Le Cléac’h, currently lying in third place. Constant in his westerly separation, a position initiated on Wednesday level with Gibraltar, Sébastien Josse remains unshakeable. The skipper of the five-arrow racing stable has moved up into fourth place, making good speed, confident in his decisions.

    What a week that was!

    Last Sunday, the solo sailors were leaving Les Sables d’Olonne. The race had only just begun and yet, just seven days on, the head of the fleet is already sailing in the tropics, with the doldrums and the equator in their line of sight.   Despite the high pressure zones slowing progress off Morocco and then the slightly late arrival of the trade winds, the hulls are powering through the miles. Madeira, the Canaries and Cape Verde, these Atlantic lands, all too familiar to offshore racers, are now behind the first third of the fleet. Aboard the Mono60 Edmond de Rothschild, Sébastien Josse has opted to distance himself from all these islands and their wind shadows. Adopting a fairly similar approach, Vincent Riou has also stuck to the outside track, whilst Armel Le Cléac’h had to put in some manœuvres yesterday to round the easternmost Portuguese archipelago. In this leading pack, the most extreme skipper is unquestionably Alex Thomson, who passed between Santo Antão and Santo Vicente. This radical option has enabled him to snatch back the reins from Armel Le Cléac’h, who had been leading the way since Monday.

    Serious doldrums

    Offshore of Africa, it will be as if a lead weight is upon them over the coming hours. Indeed, as the solo sailors reach 10° North, they’ll have to put in a series of manœuvres to ensure they maintain a maximum amount of speed in a trade wind that is set to drop to around twelve knots as it takes on a bit of E’ly. The rhythm will ease again as they close on the famous Inter-Tropical Convergence Zone, christened the doldrums. Positioned above the equator, this region is where the winds of the northern and southern hemispheres come together, which is accompanied by squalls that are often violent. In the satellite images, the situation appears to be unequivocal. Despite being heralded as fairly inactive three days ago the doldrums has now clearly fleshed out somewhat. Indeed, it has stretched and widened, with lines of squalls highly visible in the sky. As a result, each of the competitors is seeking to line himself up as best he can; the corridor between 25° and 30°W appearing to be favourable. The hardest part is yet to come then for the sailors, who are naturally marked by the drag race already played out in the trade winds, which will soon give way to a war of nerves in the tropical storms.

     

    Ranking on 13 November at 14:00 GMT

    1  – Alex Thomson (Hugo Boss) 22,002 miles from the finish
    2  – Vincent Riou (PRB) 35.4 miles astern of the leader
    3  – Armel Le Cleac’h (Banque Populaire VIII) 37.7 miles astern
    4  – Sébastien Josse (Edmond de Rothschild) 43.6 miles astern
    5  – Jérémie Beyou (Maître CoQ) 64.4 miles astern
    6  – Morgan Lagravière (Safran) 96.3 miles astern
    7  – Paul Meilhat (SMA) 103.3 miles astern
    8 – Yann Eliès (Groupe Gueguiner – Leucémie Espoir) 181.3 miles astern