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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.

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    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.

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    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.

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    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

    11.11.2014

    Review of the past 8 days crossing the Atlantic.

    On crossing the finish line of the Route du Rhum Destination Guadeloupe in third position, on Tuesday 11 November at 03:47:09 GMT, Sébastien Josse has entered the major league in terms of epic multihull sailors. At the helm of the Multi70 Edmond de Rothschild, a 21-metre trimaran initially designed to be sailed in crewed configuration, he completes…

    par Gitana

    On crossing the finish line of the Route du Rhum Destination Guadeloupe in third position, on Tuesday 11 November at 03:47:09 GMT, Sébastien Josse has entered the major league in terms of epic multihull sailors. At the helm of the Multi70 Edmond de Rothschild, a 21-metre trimaran initially designed to be sailed in crewed configuration, he completes the podium for the 2014 edition, in the wake of Loïck Peyron (Banque Populaire VII) and Yann Guichard (Spindrfit 2). For his first participation in a solo transatlantic race aboard a multihull, the Nice-based sailor was able to get the very best from his steed against the giants of the Ultime class, driving her onwards at an average speed of 21.29 knots for over 8 days of racing. We review this outstanding performance.
    Exit from the English Channel

    As scheduled on 2 November at 1300 GMT, Sébastien Josse set sail on his first participation in the Route du Rhum aboard a multihull. Aboard Edmond de Rothschild and sharing the start line with some 90 fellow competitors, this native of Nice set off to tackle the 3,540-mile course.
    At 1420 GMT, under a leaden sky peppered with spectacular squalls and buffeted by very shifty south-westerly winds, the trimaran fitted out by Baron Benjamin de Rothschild put in her first tacks in the English Channel and rounded Cape Fréhel, the first course mark, in 5th position, some eight minutes after the leader Lionel Lemonchois (Prince de Bretagne). 
    Despite a lively first night on the racetrack as the initial front rolled over the top of them leaving a bruised fleet, which already lamented eleven retirements by the early hours, including that of race favourite Thomas Coville (Sodebo Ultim’), Sébastien Josse had quickly joined the fray and was lying in second place overall as he passed Ushant in the wake of Loïck Peyron (Banque Populaire VII).

    Cape Finisterre already

    With the Bay of Biscay devoured over the course of the day on Monday 3 November, the skipper of the trimaran with five arrows began to negotiate his way around the TSS (traffic separation system and a zone forbidden to the participants in the Route du Rhum) offshore of Portugal in 4th position, some 56 miles stray of the leader, in what was still a steady breeze, oscillating between 30 and 40 knots and raging seas. Such conditions were more favourable for the large multihulls of the Ultime class like the trimaran Banque Populaire VII, which was gradually extending away from her pursuers as she made for Madeira. For his part, Sébastien Josse explained that he was still sailing under three reefs and ORC, but he hoped he’d be able to quickly free himself of the difficult conditions.

    Stalling at Madeira

    The morning of the third day of racing saw a change of pace for the Multi70 Edmond de Rothschild, which was significantly slowed by a zone of high pressure on passing Madeira. Making headway 5 to 10 knots slower than the leader, Edmond de Rothschild was still positioned in fourth place at the 1200 GMT ranking and was racking up 16 knots of boat speed. Over the next 24 hours, Sébastien Josse spared no effort, multiplying the gybes amidst the squalls so as to extract himself from the unstable airflow and finally hit the tradewinds. In so doing, the multihull was once again making speeds in excess of 20 knots. To the north-west of the Canaries, the Gitana Team’s multihull was making headway with all her sails aloft and the skipper was making the most of every opportunity to sleep and recharge his batteries.

    At a fair old lick in the tradewinds

    On the fifth day, whilst powering along in the tradewinds, the Multi70 Edmond de Rothschild pulled off a blinder by managing to slip southwards into the perfect spot whilst conserving good speed. In so doing, Sébastien Josse, still in fourth, closed to within 340 miles of Loïck Peyron compared with 412 miles just 24 hours earlier, as well as clawing back some thirty miles or so from Lionel Lemonchois, who was in third place at the time.
    With third place now within reach, the skipper of Edmond de Rothschild selected the sixth day to go on the attack and gybed a few miles earlier than his rival, creating separation to the south and opening up the playing field on this final section of the race. In order to ensure a better angle of approach as he made landfall on Butterfly Island, the solo sailor and his routing cell took this option all the way by extending their tack further south.

    The sprint for the podium

    Thanks to this offensive and bolstered by an unwavering determination, at the 1000 GMT position report on Sunday 9 November the trimaran fitted out by Baron Benjamin de Rothschild moved up into third place. On the approach towards the Antilles arc, Sébastien Josse managed to extend away from his pursuers. Without a moment’s dip in speed, the solo sailor linked onto the circumnavigation of Guadeloupe early evening on Monday 10 November to finally cross the finish line in the early hours at 03:47:09 GMT after 8 days of racing. An incredible performance then, for the skipper of the smallest boat in the Ultime fleet, for whom this was his first solo transatlantic race aboard a multihull. With a third place described by enlightened observers as impressive, the sailor managed to keep up with the large craft in his category and finally complete the podium of this 2014 edition. In so doing, he has entered the major league of epic multihull sailors.

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