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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

    17.09.2012

    Around Portugal Race: off on a 213-mile journey of uncertainty.

    The MOD 70 fleet was initially due to set off at 1100 hours local time* on the third offshore leg of the European Tour. However, once again the wind was somewhat lacking and Edmond de Rothschild Group and its four adversaries had to wait for the thermal breeze to establish itself early this afternoon before casting off. At 1420 hours*, in a breeze…

    par Gitana

    The MOD 70 fleet was initially due to set off at 1100 hours local time* on the third offshore leg of the European Tour. However, once again the wind was somewhat lacking and Edmond de Rothschild Group and its four adversaries had to wait for the thermal breeze to establish itself early this afternoon before casting off. At 1420 hours*, in a breeze reaching 7-8 knots, the five trimarans took the start of a preliminary course spanning some ten miles around the bay of Cascais. The authors of the best start, Michel Desjoyeaux and his men moved up into the lead virtually from the outset. They were closely tailed by Sébastien Josse and his crew at the first mark then that of Spindrift Racing. An hour later, this trio headed offshore in the same order.

    The points bonus awarded to the first three boats on the preliminary course are precious. The crews are very much aware of that and really apply themselves in order to secure a place. In second place, astern of Foncia, Sébastien Josse and his five crew thus pocketed two more valuable points. However, this satisfaction was quickly forgotten given how difficult the next stage of the race is likely to be as it is sure to require the crews’ full attention.

    This morning, during the pre-start briefing, Race Management announced that the course would be halved given the light, fickle winds expected for the MOD 70 fleet along the Portuguese coast. In this way, the Porto mark was forgotten, leaving way for that of the Berlengas Islands, around sixty miles to the North of the mouth of the River Tagus. Once this string of granite islands had been left to port, the trimaran fitted out by Baron Benjamin de Rothschild retraced its earlier route to drop down to a mark off Sines, around fifty miles to the South of Cascais. At that point, it will again be time to make for Cascais and the finish line off the marina. With 213 miles to cover in total, this third ‘offshore’ leg is unquestionably the shortest on the programme. However, it will be no less complicated to negotiate for the five competing crews. Indeed the navigator for Edmond de Rothschild Group, Antoine Koch, was in no doubt that it would be full of both surprises and dangers.

    And events have borne this out because at 1800 hours local time, less than three hours after the start, the five trimarans were already becalmed after just twenty or so miles of racing! For the men of Gitana Team, the only night at sea programmed in this leg promises to be intense and very short in terms of sleep. There will be frequent manœuvres on deck in order to make the most of the slightest puff of air and the contact with their rivals will be constant. Suffice to say that there will be some rather tired sailors due into Cascais marina tomorrow afternoon.

    * local time = UTC + 1 hour

    Order of passage at the Cascais Scoring Gate
    1. Foncia – 3 points
    2. Edmond de Rothschild Group – 2 points
    3. Spindrift Racing – 1 point
    4. Race for Water
    5. Musandam – Oman Sail

    Standing in the European Tour (after the Cascais City Races)
    1. Spindrift Racing – 11 + 46 + 1*+ 12 + 50 + 2* + 11 = 133 points
    2. Foncia – 12 + 50 + 3 *+ 10 + 46 + 8 = 129 points
    3. Edmond de Rothschild Group – 10 + 42 + 2*+ 11 + 38 + 3* + 10 = 116 points
    4. Musandam – Oman Sail – 9 + 34 + 8 + 42 +12 = 105 points
    5. Race for Water – 8 + 38 + 9 + 34 + 1* + 9 = 99 points

    * corresponds with the points’ bonus awarded to the top three boats at the end of the coastal section contested at the start of each offshore leg.

    The crew of the MOD Edmond de Rothschild Group

    Sébastien Josse (Skipper), Olivier Douillard, Florent Chastel, Christophe Espagnon, Antoine Koch, David Boileau