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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

    29.11.2008

    A weekend with Saint Helena.

    On this 20th day at sea, the deficits are minute at the front of the fleet – the top nine 60 foot Imocas squeezed into just 35 miles – with each ranking providing a new leader. After this long, drawn out descent of the southern Atlantic, deliverance is finally taking shape on the not too distant horizon for the solo sailors in the Vendée Globe 2008…

    par Gitana

    On this 20th day at sea, the deficits are minute at the front of the fleet – the top nine 60 foot Imocas squeezed into just 35 miles – with each ranking providing a new leader. After this long, drawn out descent of the southern Atlantic, deliverance is finally taking shape on the not too distant horizon for the solo sailors in the Vendée Globe 2008-2009, though there is still a sizeable obstacle across their path: the Saint Helena High, which is continuing to slowly shift to the NE and is not very far away now. Indeed a further reduction in pace at the head of the fleet is forecast over the next few hours.

    Loïck Peyron said it some 48 hours ago: “you mustn’t let yourself get distracted by the rankings and the change in hierarchy… the focus is elsewhere!” Indeed, rather than concentrating on the 4th place currently occupied by the skipper of Gitana Eighty at the ranking this Saturday 29th November, you simply have to look at the state of play on the chessboard in the southern zone of high pressure. This zone, the Saint Helena High is unusually far south this autumn 2008, forcing the sailors in the Vendée Globe to go to great depths in terms of latitude, prior to finally being able to gain sufficient longitude and close on the direct route. On this big loop, each skipper is selecting his or her camp and moving their pawns forward, remaining loyal to their logic and strategy: “I’m naturally looking a little at what my playmates are doing in the east but I’m also seeing that Michel Desjoyeaux has decided to skirt right round the outside out to the west. For those to the east, it’s coherent that with their slight deficit, they’re trying to cut the corner. Sébastien and I got here too early to do that” explained Loïck Peyron.
    The game plan seems to involve either cutting the corner on pain of getting their wings burnt or slightly lengthening the distance to go, so as not to rub shoulders with the centre of the high pressure: Loïck Peyron and Sébastien Josse, decidedly inseparable, seem today to be displaying a preference for the second option… As such, the competitors further to the east, but also further north, have pipped them to the post at the top of the leaderboard. The bets have been placed and the gamblers will have to wait for the end of the weekend, or even Monday morning, to find out who has made it into the top three.

    As the fleet approach the Saint Helena High, which will see a reduction in pace amongst the frontrunners this evening, the days are just as busy as ever. As such, there is certainly no let up on the deck of the monohull equipped by Baron Benjamin de Rothschild: “It was a lively night with the wind climbing as far as 28-30 knots… We went through the entire sail wardrobe! The seas on the nose had the biggest impact though. The wind is tending to ease but it’s still very shifty”. During our conversation, the skipper of Gitana Eighty excuses himself and disappears for a brief moment… in the background you can hear the sheets working: “I’ve just eased the sheets because the 10 knots of breeze just 5 minutes ago have suddenly transformed into 20 knots! That’s how it’s been for the past week: it’s constantly moving and the evening promises to be studious too.” Despite these conditions, the sailor from La Baule was nevertheless taking the time to enjoy the simple but oh so important pleasures of life: “This morning I grilled myself a few slices of bread, thanks to a toaster modified by Will (William Fabulet, Gitana Eighty’s boat captain), with some salted butter and a bit of jam… It still smells like a bakery inside the boat.”

    Close-hauled, steering into the wind and the sea since exiting the Doldrums – around ten days ago – Loïck Peyron couldn’t disguise his impatience this lunchtime to get back into some fine sessions of slipping along at speed: “It’s soon going to be time to hang a left. I’m longing for it… it’s a real motivation to tell yourself that at the end of the weekend we’ll finally be sailing downwind, under gennaker, and no longer have to sail close-hauled with this uncomfortable ride.” Before this though, the solo sailors will have to fulfil their duty to Saint Helena… because Neptune may be content with an offering as the equator is crossed, but the zone of high pressure in the southern Atlantic may well be a lot greedier.

    Indeed, whilst the top four monohulls are still making headway at around 12 knots, the grib files leave no doubt: over the coming hours, the wind will gradually ease; a drop in pace which certainly won’t be synonymous with a brief respite for the solo sailors. In fact, quite the opposite will be true, as Loïck Peyron recalls: “calms are dreaded by sailors, as they’re a lot worse than storms.” In addition, this forecast reduction in pace will certainly be the last one before they set off on the big loop of the Antarctic. As such, tidying up, rig checks and a general tour of the boat looking for wear after three weeks at sea, will all be on the programme. However, this will also be accompanied by adapting the sail area to the weather, playing with the ballast tanks and some time spent on studying the weather and looking at the latest grib files received on board… The weekend is a hollow word for the sailors in the Vendée Globe!

    Ranking on 29th November – 1600 hours (French time)
    1. BT (Sébastien Josse) 19,626 miles from the finish
    2. VM Matériaux (Jean Le Cam) 3.9 miles from the leader
    3. Generali (Yann Eliès) 5.4 miles
    4. Gitana Eighty (Loïck Peyron) 7.8 miles
    5. Brit Air (Armel Le Cléac’h) 12.7 miles
    6. Paprec Virbac (Jean-Pierre Dick) 18.1 miles
    7. PRB (Vincent Riou) 23.1 miles
    8. Veolia Environnement (Roland Jourdain) 24.7 miles
    9. Ecover (Mike Golding) 35.1 miles
    (…)