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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

    14.08.2008

    Gitana 13, from the Orient to the Occident.

    Whilst the Summer Olympics are in full swing in China, Lionel Lemonchois and his nine crew have bid farewell to Asia. The maxi-catamaran in the colours of the LCF Rothschild Group crossed the start line of the Tea Route – Hong Kong / London – this Thursday 14th August at 0755'32” UT (1555'32” local time). On this course spanning over 14,000 miles t…

    par Gitana

    Whilst the Summer Olympics are in full swing in China, Lionel Lemonchois and his nine crew have bid farewell to Asia. The maxi-catamaran in the colours of the LCF Rothschild Group crossed the start line of the Tea Route – Hong Kong / London – this Thursday 14th August at 0755’32” UT (1555’32” local time). On this course spanning over 14,000 miles the sailors of Gitana Team are targeting a time of around forty days to make Europe and the city of London.

    It is already over eight months that Lionel Lemonchois and his men have been sailing the length and breadth of the world’s oceans aboard Gitana 13. This morning, they cast off once again, bound for the open sea. Ahead of the 33 metre catamaran lies a seventh and final reference time to beat in order to conclude a record campaign, which has already provided them with a wealth of lessons and discoveries.
    Following on from the Route de l’Or, for which they’ve held the new record of 43 days 3 minutes 18 seconds since last February, the sailors from Gitana Team are tackling another legendary course: the Tea Route. This prestigious commercial route has seen some of the largest clippers of the XIXth century battling across this selective course, which begins with a close-hauled navigation across the China Sea and then the Java Sea, prior to entering the Indian Ocean. Lionel Lemonchois’ crew will turn their back on this turbulent ocean immediately after leaving the Cape of Good Hope (SE tip of Africa) to starboard. From there the ten sailors will begin the long climb up the Atlantic Ocean, it too with its own share of surprises. During their target forty days at sea, the crew of the maxi-catamaran equipped by Baron Benjamin de Rothschild, will have the opportunity to adopt a route which is fairly unfamiliar to contemporary sailors. Indeed, to date, no maxi from the G Class has ventured into these regions; the current record being the property of the French sailor Philippe Monnet since 1990.

    According to the weather forecasts, over the first days of the course Gitana 13 is set to face a medium SW’ly wind which will clock round to the W. Some close-hauled sailing is on the menu then for the start of the course, which will take the men of Gitana Team fairly near the Vietnamese coast prior to closing on the shores of Malaysia and Indonesia. “The first part of the course as far as the Indian Ocean won’t necessarily be very quick. Until we get to the south of Vietnam, the anemometer will rarely exceed 10-15 knots, but as the wind gradually backs we’ll be able to pick up the pace as we approach the Java Sea. There aren’t likely to be any big surprises as far as the weather is concerned over the initial miles but the crew will have to be on their guard. We noticed during our previous records that our passage across the China Sea is likely to involve a number of encounters (fishing boats and drifting nets dotted about everywhere). In addition, throughout our descent of the Indian Ocean, we’re going to pass strings of islands… land will never be that far away” explained Lionel Lemonchois this morning, just minutes before making towards the start line.

    Weather analysis for the initial stage: The South China Sea
    Sylvain Mondon, forecaster for ocean safety with Météo France, will also be part of the team. Onshore router for the Gitana 13, he describes the weather configuration for the start of the course: “In summer, the monsoon flow kicks in over this part of Asia. The monsoons stem from the SE’ly tradewinds of the southern hemisphere which are created to the east of Indonesia. Having gained sufficient speed these tradewinds manage to cross the equator and as the Coriolis effect changes direction they are deflected towards the right (rather than the left), later tracking round to the south and then the south-west. These winds end their long oceanic journey at the foot of southern China, where they fuel the pluvial storm activity with virtually constant humidity over the Hong Kong region. It is this headwind that Gitana 13 is likely to have to tackle on starboard tack initially, followed by further close-hauled sailing on port tack as they approach the Sunda Strait which marks the entrance into the Indian Ocean.”

    A brief history about the Tea Route
    Until 1849, the East India Company had the monopoly on the maritime transport of tea. Following this time however, the abrogation of the Navigation laws came about, which protected the trade and opened it up to the American clippers, normally dedicated to cotton. These faster vessels were to impose double tariffs and in order to remain in the race British shippers had to launch themselves into the construction of new yachts: the clippers. Around the middle of the XIXth century, the annual race of the “Tea-Clippers” from China was a real obsession for sailors. The first vessel to reach London with its precious cargo pocketed colossal sums and not inconsiderable prestige. Setting out from London in the winter, the clippers began their outbound voyages carrying various loads towards whatever destination they fancied in the Orient or even Australia. Next, at the height of the summer, the vessels sailed for China where they headed towards the main tea ports, prepared to embark the very first new tea.

    Gitana 13 crew
    Lionel Lemonchois (Skipper)
    Dominic Vittet (navigator) / Ludovic Aglaor / Pascal Blouin / David Boileau/ Léopold Lucet / Ronan Le Goff / Olivier Wroczynski / Ronan Guérin / Laurent Mermod

    Gitana 13’s records
    Route de l’Or (New York – San Francisco, via Cape Horn): in 43 days 3 minutes 18 seconds (February 2008)
    North Pacific Crossing (San Francisco – Yokohama): in 11 days 12 minutes 55 seconds (April 2008)
    Yokohama – Dalian: 3 days 20 hours 19 minutes and 11 seconds
    Dalian – Qingdao: 23 hours 50 minutes and 20 seconds
    Qingdao – Taiwan: 3 days 52 minutes and 15 seconds
    Taipei – Hong-Kong: 1 day 58 minutes 27 seconds