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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

    09.08.2011

    On the attack down the home straight.

    The waters of the Solent certainly don’t lack contrast. After the first three days of competition contested in a boisterous wind, which forced the race committee to split the Extreme Sailing Series into two, this fourth day of the Cowes Grand Prix was coloured by a light breeze, which all too seldom rose above 10 knots. In these summery conditions,…

    par Gitana

    The waters of the Solent certainly don’t lack contrast. After the first three days of competition contested in a boisterous wind, which forced the race committee to split the Extreme Sailing Series into two, this fourth day of the Cowes Grand Prix was coloured by a light breeze, which all too seldom rose above 10 knots. In these summery conditions, the eleven catamarans still competing were able to sail five races, which saw The Wave Muscat take the lead in the provisional ranking. Pierre Pennec and his three crew, who alternated between good and not such good races, have held onto second position and are fired up to tackle the three remaining days.

    It’s a quieter race zone which welcomed the Extreme Sailing Series fleet this Tuesday. Indeed it was as if the wind gods had chosen to give the crews a bit of respite before kicking back in with a vengeance. Whatever the case, it was a total change of scene today and the rooster tails left in the wake of the hulls on previous days left the way clear for catamarans labouring to make headway. However, despite what you might think, the light airs didn’t necessarily make the sailors’ job any easier: “Conditions were a lot lighter today. The wind was blowing at between 8 and 10 knots compared with around twenty knots on previous days. Despite all that though, the race zone was very tactical and the crews had to deal with the current. The left-hand side of the race course was more favourable on the whole and, as such, everyone was trying to set off from there. That made the starts tricky. However, we did manage to position ourselves there in certain races and notably the one we won and again on the last race of the day where we earned ourselves a second place. The gusts were also pretty random and hard to read”, explained Thierry Fouchier, the headsail trimmer aboard the boat, before giving us his assessment of what proved to be a day of mixed results: “Today, we sailed some good and not so good races, but we’ve already managed to identify our mistakes during the debriefs aboard the boat between the races and we’ll be working to erase them tomorrow. The first two races of the day were duels and they took place in rather light conditions. We won one race and lost one, so they cancelled each other out in terms of points. In the light airs, we can’t seem to get enough separation when we set off with the bulk of the fleet. We’re less able to predict how things are going to play out and we’re less at ease than we are in breezy conditions, where the crew is particularly comfortable.” This sentiment augurs well for the next stage in proceedings then as the wind will be back in the Isle of Wight tomorrow and through until Friday, the final day of the Cowes Grand Prix.

    After four days of competition, three boats seem to have a slight edge in terms of the top of the provisional ranking. Putting in a very consistent performance throughout the afternoon, Leigh McMillan’s men have taken pole position tonight to the detriment of Luna Rossa, which is now in third place. Meantime the crew of Edmond de Rothschild Group has managed to hold onto second position and has a deficit of just four points in relation to The Wave Muscat. Suffice to say that there’s everything to play for, as Thierry Fouchier highlights: “Our second place midway through the event is very satisfying as it means that we’ve done the necessary to raise our game. This evening the separation between the top three is really minimal and so much the better because that’s what we came here for! We’re going to have to apply ourselves over the last three days and not let anything slip because we know all too well that in the Extreme Sailing Series the final places can come down to a matter of just one point.”

    Tomorrow, racing begins at 1500 hours, just like on previous days, but the race zone could well be modified slightly in order to adapt to the race schedule for the other fleets currently competing in Cowes Week.

     

    Ranking for the Cowes Grand Prix after the 4th day (23 races)

    1. The Wave, Muscat (OMA) – 118 points
    2. Edmond de Rothschild Group (FRA) – 114.4 points
    3. Luna Rossa (ITA) – 114 points
    4. Alinghi (SUI) – 99 points
    5. Team GAC Pindar (GBR) – 89 points
    6. Red Bull Extreme Sailing (AUT) – 86 points
    7. Oman Air (OMA) – 83 points
    8. Niceforyou (ITA) – 66 points
    9. Emirates Team New Zealand (NZ) – 58 points
    10. Aberdeen Asset Management (UK) – 58 points
    11. Team Extreme (EUR) – 48 points
    12. Artemis Racing (SWE) – 21 points