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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

    13.08.2013

    Edmond de Rothschild qualifies for the Transat Jacques Vabre.

    The MOD70 Edmond de Rothschild crossed the finish line in the Rolex Fastnet Race this Tuesday at 1108 GMT. Sébastien Josse and Charles Caudrelier, who had opted to race double-handed in preparation for their participation in the upcoming Transat Jacques Vabre, completed the 610-mile course between Cowes and Plymouth, via the Fastnet, in 48 hours an…

    par Gitana

    The MOD70 Edmond de Rothschild crossed the finish line in the Rolex Fastnet Race this Tuesday at 1108 GMT. Sébastien Josse and Charles Caudrelier, who had opted to race double-handed in preparation for their participation in the upcoming Transat Jacques Vabre, completed the 610-mile course between Cowes and Plymouth, via the Fastnet, in 48 hours and 8 minutes. More important than the race time or ranking – Gitana XV secured 4th place in elapsed time the men of Gitana Team’s main aim was to qualify for the transatlantic race between Le Havre and Itajaï. Job done!

    For their first outing in both double-handed and race configuration, the men of Gitana Team chose a prestigious event. Indeed, at noon on Sunday, Sébastien Josse and Charles Caudrelier set sail on the Rolex Fastnet Race. For its 45th edition, the great Anglo-Saxon classic enjoyed a packed line-up, with the entry list boasting a record 347 yachts.

    On his arrival in Plymouth, after 48 hours at sea, the skipper of Edmond de Rothschild ran through the race scenario: “We’re tired but happy to have completed this race and qualified for the Jacques Vabre. The weather conditions pretty much echoed the forecasts with a really physical start to the race… We exited the Solent close-hauled in a building breeze – an average of 12 to 15 knots – and those few miles were intense with a great many tack changes to be performed. During these manoeuvring sequences, we clearly lacked muscle power to drive the boat in the way we’re used to doing in crewed configuration. Fortunately the 150 miles between exiting the Solent and Lizard Point were easier to handle, because the minute you have some open water it’s less of a strain on a physical level. In the Celtic Sea, we had more breeze than forecast with an average of 17 knots, which peaked at 25 knots. There were short and fairly choppy seas, which weren’t very comfortable. As planned though, as soon as we rounded the Fastnet, we switched to a run. It was a great night in this configuration.  This morning, the wind totally died away with just 10 miles to go till the finish. We were virtually at a standstill for 4 hours and we had to be patient as we waited for the south-westerly breeze to kick back in and steer us towards the entrance to Plymouth Sound, where the finish line was set.”

    For the Edmond de Rothschild duo, this test run of over 600 miles has certainly been a physical challenge, but it has also taught them a great many lessons, as Sébastien Josse explains: “It was really interesting to participate in the Rolex Fastnet Race in double-handed configuration and it will really pay off in our preparation. There were a lot of things to take into account with a start line, fellow competitors and a course to be respected. Completing our qualifier in conditions such as these has enabled us to push back our limits a lot further than if we’d just stuck to training on home waters offshore of Lorient. Over the initial miles of the race, we most likely had to perform more tack changes than we will for the entire Jacques Vabre! Edmond de Rothschild was a lot easier to handle downwind, under gennaker, than upwind. We noticed during this race that it was really complicated to leave the boat under automatic pilot when we were sailing close-hauled in quite heavy seas. We’re going to have to work on that and find the right trim for the Jacques Vabre. During the Transat, we’re going to have to keep things simple. The boat is very demanding and powerful, which makes all the navigation full-on. On a physical level, the manœuvres are difficult, especially given that once these manœuvres are complete, you have to focus and get a feel for the helm so that you can find the boat’s balance again. The recovery periods are really short.”

    The minute the crew were across the finish line, the triamran fitted out by Baron Benjamin de Rothschild made straight for her port of registry. Sébastien Josse and Charles Caudrelier took on two members of their shore crew so as to complete the return delivery trip in the best possible conditions. Edmond de Rothschild is expected into Lorient in the early hours of tomorrow morning as the wind is likely to be pretty light as they approach the Breton coast. Once the one-design is moored in the BSM (Kéroman submarine base), Gitana Team will enjoy a few days’ holiday. Indeed, from early September, a dense programme awaits the Edmond de Rothschild duo with two months till the start of the Transat Jacques Vabre.

    Rolex Fastnet Race, aboard the MOD70 Edmond de Rothschild (Gitana XV)

    Cowes – Fastnet Rock – Plymouth, 610 miles to go

    After leaving Cowes on 11 August at 1100 GMT, Edmond de Rothschild crossed the finish line in Plymouth on 13 August at 1108 GMT with a race time of 48 hours and 8 minutes.

    Sébastien Josse and Charles Caudrelier rank 4th in elapsed time, thus qualifying for the Transat Jacques Vabre.