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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

    27.06.2013

    Edmond de Rothschild second into Plymouth.

    The trimaran fitted out by Baron Benjamin de Rothschild crossed the finish line of the third offshore leg of the Route des Princes at 18 hours 8 minutes 33 seconds (GMT) after a little over 48 hours at sea. Sébastien Josse and his five crew finished second in Plymouth, thus securing the second step of the provisional overall podium, tied on points…

    par Gitana

    The trimaran fitted out by Baron Benjamin de Rothschild crossed the finish line of the third offshore leg of the Route des Princes at 18 hours 8 minutes 33 seconds (GMT) after a little over 48 hours at sea. Sébastien Josse and his five crew finished second in Plymouth, thus securing the second step of the provisional overall podium, tied on points with the new leader. With four days to go till the end of the event, the final sprint is on and it promises to be a merciless battle.

    Light airs were forecast and that’s just what they got in this third offshore leg to Plymouth. Covering 644 miles in reality, which equates to an average speed of 11.47 knots, the crew of Edmond de Rothschild was a far cry from the usual speeds it likes to rack up on its steed: “It was a complicated leg… We particularly liked the short downwind run from Fastnet to the Scillies, as things were pretty slow otherwise… A multihull in light conditions isn’t the most pleasant boat to sail as its floats are constantly slamming. We had to play the patience card and put things into perspective as we waited for the wind to kick back in,” Sébastien Josse admitted on his arrival at Mountbatten.

    The different accounts from aboard the boat all seem to be saying the same thing: the fate of this third leg was sealed on the first night of racing as the fleet rounded the Tuskar headland: “The leg evolved very quickly as we passed Tuskar, with a TSS* to be respected. The routing software had us pass offshore to hunt down a wind shift. Oman opted for an inshore option. For our part, we didn’t envisage heading off on such an extreme option. Similarly, we didn’t have the same approach to the Fastnet because, given the grib files, there was nothing worth discussing in that scenario. Oman’s choices are really daring. It’s had some success and it’s great that it’s working for Oman, but to my mind, it’s too risky a game and it can’t last,” Sébastien Josse stated. The on-board navigator, Charles Caudrelier, also reviewed this tricky section, which turned in their rival’s favour ultimately: “From the initial tacks, we had a TSS* in the middle of the course. We are forbidden to cross these systems or we may incur a penalty. As a result, they’re forcing us to make slightly different strategic choices, preventing us from crossing tacks with our rivals as they pass through. At Tuskar we opted to head offshore instead. We had very little breeze in relation to the forecasts, whilst Oman managed to nudge some pressure that wasn’t indicated on the charts. It headed offshore at that point and as the conditions on the next stage favoured those who were in front, we did suffer a bit as far as Bishop Rock.” 

    The Scilly Isles marked a change in the pace of the race. Indeed, a wide, windless zone stretched out across the trimarans’ route and led to a restart a little over 100 miles from the finish: “Ultimately, Oman and ourselves finished within a whisker of each other, despite them having an actual lead of 60 miles at Fastnet. We didn’t think we’d see them again so quickly but we battled hard to make up the lost ground. As we passed Scilly, the wind totally died away and the fleet rebunched big style. It was dark, we had 3-4 knots and you really had to go on feeling in a bid to try and get the boat making headway as best we could.  At that point we decided to go on the attack a bit further North, but conditions fleshed out below us… We didn’t give up though and we kept on pressuring them throughout the day, but unfortunately once the front had passed, there weren’t any tactical coups to be had. With Oman gaining a few miles, we weren’t able to get in front of them. This evening we’re obviously disappointed, but we don’t have any regrets as we fought hard right the way to the finish.”

    With regard the ranking, the results of this leg mean that Oman Air is leading overall, but is tied on points with Sébastien Josse and his men. The match promises to be tight and the battle merciless, both in the inshore racing, which will take place on Friday and Saturday, and during the final offshore leg to Roscoff, the start of which will take place on Saturday evening. As a result, suspense reigns over the name of the outright winner in this first edition of the Route des Princes: “After a year and a half of sailing in the MOD class, we’ve learnt that it’s never over till it’s over on these boats. That has proved to be true again here and we’ll have to wait for the final leg to discover the victor in this Route des Princes. We’re more motivated than ever and up for the challenge ahead,” concluded the skipper of Edmond de Rothschild.

    *TSS: means a traffic separation scheme and shows a zone forbidden to sailing for the fleet of the Route des Princes.

    Edmond de Rothschild’s crew in Offshore 3

    Sébastien Josse / Charles Caudrelier / Thomas Rouxel / Antoine Koch / Jean-Christophe Mourniac / Florent Chastel

    The figures for Edmond de Rothschild in Offshore 3

    Edmond de Rothschild crossed the finish line at 18 hours 8 minutes 33 seconds (GMT), 15 minutes and 27 seconds behind Oman Air and 37 minutes and 27 seconds ahead of Virbac Paprec. The three MOD70s arrived within 52 minutes 50 seconds of each other.

    Race time: 2 days 8 hours 8 minutes and 33 seconds

    Theoretical distance: 500 miles, at an average speed of 8.91 knots

    Actual distance covered: 644 miles, at an average speed of 11.47 knots

    Ranking for Offshore 3 (Dublin – Plymouth)
    1. Oman Air / 40 + 2* = 42 points
    2. Edmond de Rothschild / 36 + 2* = 38 points
    3. Virbac Paprec 70 / 34 points
    4. Spindrift Racing / Retirement = 28 points
       

    * bonus points awarded to the first boat to pass the island of Bardsey (Edmond de Rothschild) then that of Bishop Rock (Oman Air)

    Ranking for the Route des Princes
    1. Musandam – Oman Air (Sidney Gavignet) / 126 points
    2. Edmond de Rothschild (Sébastien Josse) / 126 points
    3. Spindrift Racing (Yann Guichard) / 122 points
    4. Virbac Paprec 70 (Jean-Pierre Dick) / 98 points