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Season 26
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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

    13.11.2021

    DIY and doldrums in prospect for the Maxi Edmond de Rothschild.

    With a lead of more than 142 miles over their closest pursuer and 256 miles over the third boat at 2pm to increase their lead at the head of the race before they start tackling one of the dreaded passages in this Transat Jacques Vabretomorrow; the doldrums! And yet, last night was far from relaxing for our duo aboard the Maxi Edmond de Rothschild a…

    par Gitana

    With a lead of more than 142 miles over their closest pursuer and 256 miles over the third boat at 2pm to increase their lead at the head of the race before they start tackling one of the dreaded passages in this Transat Jacques Vabretomorrow; the doldrums! And yet, last night was far from relaxing for our duo aboard the Maxi Edmond de Rothschild as play was interrupted by a DIY mission in the middle of a pitch black night. This latest day at sea, the seventh, will be devoted to getting the five-arrow maxi-trimaran making southing, whilst adjusting her trajectory towards their chosen gateway into the Inter-Tropical Convergence Zone.

    “We’re relaxing a bit this morning. The boat’s slipping along all on her own and we’re making a little more boat speed than the others, which is refreshing and soothing”, admitted Charles Caudrelier this Saturday morning, before going on to describe the rhythm which has punctuated the first few days of racing: “It’s already six days since we set sail and the time has just flown by as we’ve been constantly putting in manoeuvres and working to make headway on the Maxi. We’ve really had our nose to the grindstone the whole time. We’ve had to be constantly on top of the trimming, going fast and thinking about the upcoming strategy. Our routing cell has done a fantastic job and, for now, they haven’t put a foot wrong! That’s enabled us to gradually stretch away from our rivals despite our minor technical glitches.”

    Mechanical failure

    Shortly before midnight, the skipper of the Maxi Edmond de Rothschild contacted their shore crew to inform them about some mechanical failure. It was impossible to start the engine and charge the batteries as required. In fact, when racing, the engine’s propulsive element is locked, but the latter is used to drive the alternators to recharge the batteries and produce the required energy for all the on-board electronics. “Usually, when you start the engine, you have more power…” Charles Caudrelier immediately explains. What this means is that once the fault is identified, the countdown is on to resolve the issue and avoid the blackout so feared by offshore sailors.

    “We seriously thought that we’d have to make a pit stop… However, the team responded very quickly and nailed the issue as usual! We switched over to energy-saving mode aboard by killing the supply to all the non-essential systems and Franck helmed whilst I took on the role of mechanic down below for two hours. In the end, we got our miracle! Just one of the three screws that was holding the part together had broken and I was able to repair it”, explained the skipper, relieved to have been able to get the situation dealt with so quickly. To conclude then, nobody got hurt, just frightened, and they lost out on a bit of sleep: “Nights like that are always a little exhausting, as they break up the rhythm we’d set up. Neither Franck nor I were able to get any rest for 6 or 7 hours… but fortunately the early hours of the morning went a lot smoother.”

    Images from the ocean, day 6 – Slipping along offshore of Cape Verde in the morning

    “The light is fabulous offshore of Cape Verde!” However, the morning snapshot sent by Charles Caudrelier reveals the scars of a lively night aboard the Maxi Edmond de Rothschild. With the problem resolved and behind them, the two sailors have been savouring this moment spent slipping along adding miles to their lead over the past few hours. They’re also casting their minds forward to the next stage of the programme, with the weather once again forecast to be complicated to decipher. “When you’re in front and the first to tackle the doldrums, you’re much more likely to get caught out… but that’s the name of the game!” concluded Franck Cammas from the cockpit of the five-arrow giant.

    Positions on Saturday 13 November at 14:00 UTC
    1. Maxi Edmond de Rothschild (F. Cammas / C. Caudrelier)
    2. SVR – Lazartigue (F. Gabart / T. Laperche)  + 142,9 miles
    3. Banque Populaire XI (A. Le Cléac’h / K. Escoffier)  + 256,2 miles
    4. Actual (Y. Le Blevec / A. Marchand) + 264,6 miles
    5. Sodebo (T. Coville / T.Rouxel) + 485,7 miles