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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

    18.08.2014

    Sébastien Josse qualified for the Route du Rhum Destination Guadeloupe.

    With two and a half months to go until the start of the Route du Rhum, the countdown is on for the solo sailors who will be setting sail on the famous transatlantic race between Saint Malo in France and Pointe-à-Pitre in Guadeloupe. Sébastien Josse set himself a target of 15 August to validate his qualification for the event; a schedule which he ha…

    par Gitana

    With two and a half months to go until the start of the Route du Rhum, the countdown is on for the solo sailors who will be setting sail on the famous transatlantic race between Saint Malo in France and Pointe-à-Pitre in Guadeloupe. Sébastien Josse set himself a target of 15 August to validate his qualification for the event; a schedule which he has respected to the letter. Indeed late Friday, after a little over 50 hours at sea and having covered 1,000 miles, the skipper of the Multi70 Edmond de Rothschild returned to the boat’s port of registry in Lorient and, in so doing, has secured his entry ticket for 2 November 2014.

    All the solo sailors intending to compete in the Route du Rhum have to complete a qualifier of at least 1,000 miles to validate their registration for the prestigious transatlantic race. Aboard the Multi70 fitted out by Baron Benjamin de Rothschild, Sébastien Josse is no exception to the rule. Making the most of a favourable weather window, the skipper of Gitana Team left Lorient last Wednesday, 13 August, for a looped circuit around the Bay of Biscay.

    On his return to the port in Brittany’s Morbihan region, the sailor described the conditions he encountered along the way: “During my two and a half days at sea, I had some very varied conditions, between 8 and 28 knots of breeze, which resulted in a full-scale dress rehearsal with upwind and downwind conditions and a lot of manœuvres. I didn’t want to do my qualifier in light airs as they wouldn’t have been representative of the conditions likely to await me as I leave Saint Malo in early November, but over the past few weeks it hasn’t been easy to find any breeze. As such I just had to sit tight for a bit. I set off with a good 28 knots of breeze and I had to negotiate a fair few stormy squalls on the first night, close-hauled in the Bay of Biscay with quite heavy seas. The first tack southwards led me to the north-west of Cape Finisterre before changing tack to head due North towards the middle of the English Channel. After that, conditions pretty much leant themselves to taking a route via the Raz de Sein and then dropping back down to Lorient. It was very interesting to do a spot of ‘pebble-hopping’ in this sector, because according to the conditions, we may be able to take that route at the start of the Route du Rhum.”

    Sailing singlehanded is a remarkable and demanding exercise, where being familiar with your steed is just as essential as the sailor’s experience. In this way, besides being compelled to do so by Race Management, completing a qualifier to confront the reality of sailing offshore is an excellent opportunity to go through the moves and see how you handle things: “On this boat, I still have the false references left over from sailing her in crewed configuration, whether that be in terms of speed, trimming or sail configuration… Naturally sailing singlehanded is very different and you have to find and work on a new set of directions for use. To pull that off, there is no miracle cure: you have to increase your time on the water and relearn your automatic reflexes so that everything runs smoothly whatever the conditions… Every sea trial is precious in the bid to gain experience and the necessary reflex actions and this qualifier was the perfect opportunity to continue my apprenticeship. The modifications made to the boat over the past winter have largely been validated, but that’s an ongoing process and we still need to make some improvements, especially with regards to the sailor’s comfort,” admits the skipper of the Multi70 Edmond de Rothschild.

    Between now and the start of the Route du Rhum – Destination Guadeloupe, Sébastien Josse will be making the most of every remaining day to hone his preparation through until the race start on 2 November. On the programme for the skipper then are more and more miles on the clock so as to make the Multi70 Edmond de Rothschild reliable and find the essential sailor/boat osmosis that is required for a 3,500-mile transatlantic race in solo configuration on a multihull.

    For further information about Sébastien Josse, his career and his achievements: http://www.gitana-team.com/en/gitanateam.sailors.aspx?sebastien_josse

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