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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

    31.07.2010

    First race and first podium for Edmond de Rothschild Group.

    It’s all go for the Extreme Sailing Series event in Cowes. At exactly 1000 GMT this morning, race management launched the nine competing catamarans on a coastal course, the start of which took place at the foot of the famous Royal Yacht Squadron. A light English drizzle and a gentle 7 knot breeze accompanied the fleet of Extreme 40s. The catamaran…

    par Gitana

    It’s all go for the Extreme Sailing Series event in Cowes. At exactly 1000 GMT this morning, race management launched the nine competing catamarans on a coastal course, the start of which took place at the foot of the famous Royal Yacht Squadron. A light English drizzle and a gentle 7 knot breeze accompanied the fleet of Extreme 40s. The catamaran fitted out by Baron Benjamin de Rothschild earned her first podium position of the week with a 3rd place.

    Overly keen on the start line, Véolia, Groupama and The Ocean Racing Club were each given an individual recall. As such they had to turn back on themselves and perform a penalty turn, a manœuvre which is always detrimental to the next stage in proceedings.

    The Solent is famed for its strong currents and the least that can be said about that is that conditions were true to form in the first race of this Cowes Grand Prix. Heading to windward initially, with the current against them on a rising tide, Edmond de Rothschild Group and her rivals really had their work cut out with a number of tack changes proving vital to ensure the steady headway of their steed. To better protect themselves against the currents, the one designs had to go pebble-hopping as close to the island as they dared… It proved to be a perilous game as the gear damage at the end of this race testified: all the competitors hit and damaged at least one of their appendages (daggerboards and/ or rudders). At Ventury Quays, where the Extreme 40s are moored, the shore crews are getting down to work to get the bulk of the repairs done before this afternoon’s races.

    Third in this race, which was ultimately won by the team on Ecover, Yann Guichard and his crew have straightaway confirmed that they’re a force to be reckoned with. The next race is at 1500 GMT, with a return to the more traditional Extreme Sailing Series format, namely short courses off Egypt Point.