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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

    31.03.2008

    Gitana 13 off to a flying start.

    The weather which reigned off California this weekend, won't have given Lionel Lemonchois and his crew much of an opportunity to size-up their performance. Setting out on Saturday 29th March at 22h45'45 UT – or mid afternoon in San Francisco – in a bid to break the record for the east to west crossing of the North Pacific, the eleven crew on Gitana…

    par Gitana

    The weather which reigned off California this weekend, won’t have given Lionel Lemonchois and his crew much of an opportunity to size-up their performance. Setting out on Saturday 29th March at 22h45’45 UT – or mid afternoon in San Francisco – in a bid to break the record for the east to west crossing of the North Pacific, the eleven crew on Gitana 13 were caught off guard.

    Initially surprised by the icy temperatures, which weren’t dissimilar to when they cast off from New York in January during La Route de l’Or, then by a NW’ly air flow, blowing up to 25/ 20 knots, causing big seas the minute they escaped San Francisco bay: “We were expecting the Pacific swell but we were really shaken about for the first ten hours at sea: under 2 reef ORC, soaked through despite our drysuits… There’s certainly nicer introductions! That didn’t last long though and things have calmed down gradually. The sea state over the first few hours forced us to drop a little further south than the start forecasts indicated, but nothing dramatic” explained the skipper of the 33 metre long maxi-catamaran.
    This start, which could be described as ‘feisty’, has not prevented Lionel Lemonchois and his men from racking up good speeds for this second record attempt, as the 480 miles covered during the first day bear witness: at the 0830 position report, the maxi-catamaran equipped by Baron Benjamin de Rothschild had clocked up an 185 mile lead over Olivier de Kersauson’s reference time. This fairly substantial gain is not that significant after just 30 hours of racing, but it’s still a good morale boost for the crew.

    Yesterday evening, as they completed their first day at sea, the men from Gitana Team were sailing in around fifteen knots of NE’ly and were able to round off their trajectory a little. This move has led to much more manageable conditions, particularly as the seas have become less messy: “Gitana 13 is flying along under full mainsail and large gennaker at over 20 knots; the pace easing off slightly over the past few hours. We’re on the southern edge of a high and our first gybe is scheduled for 6 hours time (at the end of the night) as the wind clocks round to the East. After that we should be able to make good headway on port tack in our bid to hunt down a new cold front, which is forecast across our course in 24 hours time. For the time being though, things are fairly calm here; it’s mid afternoon and the temperatures are gradually climbing thanks to the bright sunshine. Life onboard is beginning to take shape.”

    Gitana 13’s watch system
    Indeed, as regards organisation, Lionel Lemonchois has opted to split his crew into three watches: two being comprised of four crew and one of three. The crew comprises eleven men then in this North Pacific crossing between San Francisco and Yokohama. 

    Watch No.1: Lionel Lemonchois / Olivier Wroczynski / David Boileau / Cyril Dardashti
    Watch No.2: Ludovic Aglaor / Jean-Baptiste Epron / Nicolas Raynaud / Kojiro Shiraishi
    Watch No.3: Jacques Vincent / Stefan Fodor / Léopold Lucet