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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

    04.11.2005

    Making the break.

    With less than 48 hours to go before the multihulls cross the starting line of the Transat Jacques Vabre at 15h00 on Sunday, the Gitana Team is putting the finishing touches to its mission of preparing the boat and providing technical support to both trimarans. For this eminent quartet comprising Frédéric Le Peutrec & Yann Guichard, Thierry Duprey…

    par Gitana

    With less than 48 hours to go before the multihulls cross the starting line of the Transat Jacques Vabre at 15h00 on Sunday, the Gitana Team is putting the finishing touches to its mission of preparing the boat and providing technical support to both trimarans. For this eminent quartet comprising Frédéric Le Peutrec & Yann Guichard, Thierry Duprey du Vorsent & Erwan Le Roux, that means dividing up their time between press, weather analyses, physical training, and time relaxing with the family. Raring to go, raring to get into phase with the ocean.

    As with any short-handed race, sailed single-handed or two-handed, the time leading up to the start is strange, and gives rise to mixed feelings for those competing, torn between the strong desire to get into the race and obligations ashore. Pressure increases, not for lack of rough weather, but because after having imagined, prepared, anticipated, analysed and gone over the wide range of scenarios which may arise on a transatlantic race, you never the less find yourself chomping at the bit in the last few hours before the starting short is fired. Nothing new about that in sport, but ocean racing is rather unusual in the sharp cut-off point represented by the start. In a matter of minutes, you wave goodbye to a the landlubber’s world where you hardly have a minute to yourself, to find yourself with an ocean to race across where each minute counts, all energy focussed upon attaining the goal. Crew safety, preserving the gear, concentrating on strategy, eating, sleeping and staying on form. 

    « Once at sea, you are estranged from terrestrial concerns. Our days are marked by the watch schedule, brief instants of rest, relentless concentration on the sea. There is never total let-up on these trimarans. Stress is ever present, with the perpetual underlying sensation of danger which enables us to face up to difficult situations.  Without being obsessive about it, it does keep us on our toes, as we have to be highly reactive to the slightest alert, and able to find the energy necessary when tiredness is making itself felt. You can keep going for quite some time in that state, but you have to react pretty quickly never the less. It’s the transitional phase between leaving the dockside and getting into the swing of the competition which determines the speed with which you become truly efficient. Being able to fall into a deep sleep quickly, making sure that you eat properly, according to the effort required, getting beyond the seasickness stage if the sea is a little rough. These are the sorts of things which make ocean racing so different from other sports, even from day racing. Something else too, is that sailing is one of the rare sports where competitors are questioned and interviewed when they are in the full throes of the competition. It’s a bit like asking a football player how he managed to score a goal ! It’s not always easy to switch from our watery world to terrestrial questions. » (Yann Guichard, co-skipper with Frédéric Le Peutrec on Gitana 11.)

    And the change will be rude for this Transat Jacques Vabre. A 25 knot southerly wind is forecast for 15h00 in Le Havre on Sunday, veering SW with gusts as the fronts arrive and creating very choppy seas. The fleet are being thrown into the lion’s den right from the start. « We’ll be donning our drysuits at the start. Last time, we had to wait a week before being able to take them off. In the first few hours of the race, we’ll have to force ourselves to sleep if we don’t need to manoeuvre. On Gitana 11, our watches last three hours, but the person who is off-watch has to take care of the weather, ship-to-shore relations, food, keeping the boat tidy and resting. But when there waves 6 m high and a 25 knots wind is blowing, it’s not always that easy to clear your head enough to get the sleep you need in a bunk stuck along the side of the boat so you don’t get thrown out of bed !

    The noise, the movement, the tension of the start… you have to be able to empty your head in order to recover as soon as you can. It generally takes a couple of days to be fully in the swing of things, in tune with the boat, in phase with the wind and the sea. Frédéric and I have already been through that sort of thing which should make the change that much easier physically and mentally. It’s really important too. The first few miles are always a great chance to stand out, to obtain an advantage, even if it’s only psychological. Once that stage is over, there is still many mile to run ! »

    The time is nigh for resting on Friday and Saturday (the monohull fleet’s start) – alternating between rest and relaxation, weather briefing sessions and strategy analyses. For all their days are fully occupied, their nights are also sometimes quite agitated by dreams and periods of sleeplessness. As if they were already underway …