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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

    31.10.2010

    The deliverance of the open ocean.

    It has been an excellent start for Yann Guichard, who was able to devour the twenty miles separating the start line at Pointe du Grouin and Cap Fréhel in one hour. Gitana 11 rounded the final course mark before Guadeloupe in second place, five hundred metres behind Franck Cammas. At the first position report of this Route du Rhum – La Banque Postal…

    par Gitana

    It has been an excellent start for Yann Guichard, who was able to devour the twenty miles separating the start line at Pointe du Grouin and Cap Fréhel in one hour. Gitana 11 rounded the final course mark before Guadeloupe in second place, five hundred metres behind Franck Cammas. At the first position report of this Route du Rhum – La Banque Postale 2010, that of 1600 hours, the ranking remained unchanged, but the maxi-trimaran fitted out by Baron Benjamin de Rothschild had lengthened her stride considerably.

    There were a huge amount of people on the water to follow the start of the ninth edition of the Route du Rhum! Added to that, the support ribs tailed the boats until just after Cap Fréhel to ensure there were no collisions in this initial stage of the race, something which is always a cause for concern for the solo sailors and their teams. At 1302 hours, the start gun echoed across the water for the 85 competitors, of which the nine ‘ultimate’ multihulls set off furthest offshore of the line. Franck Cammas was the most prompt under mainsail and small jib, followed by Yann Guichard under mainsail and genoa, whilst Sidney Gavignet was hot on his heels under mainsail and gennaker.

    Conditions were perfect then with smooth seas and a departure on an ebbing tide, the whole scenario coloured by overcast skies with the odd break in the clouds. Most importantly, there was a SE’ly breeze of around twelve knots to accompany the fleet. Quarter of an hour later, the trimaran fitted out by Baron Benjamin de Rothschild took the head of the race and the separation between the top three and the rest of the fleet was increasing inexorably! With the wind tending to ease as it shifted slightly round to the East, all the solo sailors hoisted their large gennaker, surrounded by a horde of motor boats.

    Two hours prior to the start, Yann Guichard shared with us his final impressions and notably his views on the first few miles of the race which promised to be lively given the huge crowds on the water: “We’re going to leave our mooring in a few minutes and it’s a bit stressful as there will be huge amounts of people on the water! I can’t wait for it to be the evening so that I’m free of the coast and the spectators, but I’ll still try to make the most of these first few miles along the coast, as it’s likely to be superb… The former promises to be studious with a fair number of manœuvres to make, but there aren’t many options to be had: you simply have to go fast from the start, because the leaders will enjoy greater rewards in the upcoming weather conditions.”

    Entering into solitude

    The first justice of the peace was the mark moored off Cap Fréhel, where an incredible crowd were massed beneath the overcast skies, albeit free of rain. Gitana 11 managed to slide to windward of Franck Cammas, but on approaching Cap Fréhel, the breeze ran out of puff and a new series of toings and froings took place just prior to the course mark. Five hundred metres behind the leader, Yann Guichard was forced to link together a set of gybes to free himself of the coast and avoid one of the numerous spectator boats massed around the foot of Cap Fréhel. However, after two good manœuvres to get offshore, the skipper of Gitana 11 regained his smile and the concentration necessary to confidently begin his Atlantic crossing spanning some 3,500 miles!

    Second at the 1600 hour position report, the maxi-trimaran in the colours of the Edmond de Rothschild Group was in a good position to exit the English Channel. The first major option will take shape from Monday morning, once the first ‘ultimate’ multihulls have rounded the island of Ushant: will it be a dive down to the SW to pass under the zone of high pressure, or will it be westbound on a direct course? We’ll have to wait a few hours yet before we find out which options they all take.

    Ranking for the Ultimate Category on 31st October at 1600 hours
    1. Groupama 3 (Franck Cammas) – 15.4 knots
    2. Gitana 11 (Yann Guichard) – 1.3 miles / 14.2 knots
    3. Oman Air Majan (Sidney Gavignet) – 1.7 miles / 14.6 knots
    4. Sodeb’O (Thomas Coville) – 2.9 miles / 14.9 knots
    5. Idec (Francis Joyon) –  3.1 mlles / 13.4 knots
    6. La Boite à Pizza (Philippe Monnet) – 8.3 miles / 12.0 knots
    7. Défi Cancale (Gilles Lamiré) – 10.7 miles / 10.2  knots
    8. Saint-Malo 2015 (Servane Escoffier) – 12.3 miles / 7.1 knots 
    9. Côte d’Or II (Bertrand Quentin) – 16.2 miles / 2.8 knots