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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

    13.11.2003

    Gitana standing up to pressure from the big guys in the Transat.

    Nine days into the race and the 13 multis still in the race have covered more than two thirds of the 4 340 mile long course between Le Havre (France) and Salvador de Bahia (Brazil). After yesterday's wild and wonderful sprint and the record of the longest distance covered in 24 hours, namely 551 miles, Gitana is still hanging on...

    par Gitana

    Nine days into the race and the 13 multis still in the race have covered more than two thirds of the 4 340 mile long course between Le Havre (France) and Salvador de Bahia (Brazil). After yesterday’s wild and wonderful sprint and the record of the longest distance covered in 24 hours, namely 551 miles, Gitana is still hanging on…

    At today’s check-in at 15h00 French time, nearly 700 miles (1296 km) separated Groupama, the multihull leader, from those following up the rear of the multihull fleet, the Swiss boat Banque Covefi, who has had to cope with one technical hitch after another. That did nothing to prevent her from pocketing the Trophée Baume et Mercier this morning covering a distance of 513 miles (950 km) in 24 hours.  Then second best time in the event to date …second to Gitana that is, who retains the record for the greatest distance covered in 24 hours for the time being. A record which will no doubt stand to the finish of this Transat Jacques Vabre 2003, with 551 miles covered yesterday at an average speed of nearly 23 knots (42 km/h).

    At this same 15h00 check-in, Gitana lay 260 miles (481 km) behind the multihull leader and is fighting tooth and nail in 7th place. ” Moral on board is high” , pointed out the router Sylvain Mondon from Météo France, who is in contact every two or three hours with the skippers by telephone. “Lionel and Marc attacked the Doldrums yesterday evening on a course slightly west of the rest of the fleet.  It was the best way in through this zone full of danger and pitfalls. Since the start, the crew has managed their race and effort perfectly, with each having the time to rest, indispensable for safety reasons on such a long course.”

    The Doldrum trap

    The Doldrums lie at the point where the north and south Atlantic tradewinds converge and have long had the reputation of putting seamen’s nerves to the test, whatever the reason they happen to be sailing these waters. Anarchy reigns in this part of the ocean dominated by a “cyclothymic” rhythm, where storms and windless zones alternate over a band stretching some 500 miles from north to south. Every ounce of the skippers skill and knowledge is called upon to find the best way through the succession of pitfalls scattered left, right and centre, where endless strings of manoeuvres, slalom and extreme vigilance are the only keys to the best solution, or rather the lesser of two evils.
    At 15h00 today, Gitana had already dodged her way through more than half this critical zone at an average speed of not far off 20 knots. A fine performance indeed for these two newcomers to this Transat Jacques Vabre. Their progress in the 24 hours ahead remains difficult to predict but the westerly position looks favourable in relation to the group of boats directly behind Groupama, lying further east and who appear to be suffering form lack of wind today. This may turn out to be critical in the medium term.
    Having come back on the monohull fleet at great speed after their late start following a three-day postponement, the leading multihulls, led by Groupama, overtook the leading Open 60 monohulls two days ago. 

    At this rate, the two Francks (Cammas and Proffit) ought theoretically to cross the finishing line sometime during daytime hours on Sunday 17th November. But if you recall the surprises which the last days of the Route du Rhum 2002 held in store for the fleet, you will realise that the race is far from played out yet. Not until the finishing line has been crossed in any event, particularly on racing machines like these, where 140 miles can be covered in just 7 hours at an average speed of 20 knots !