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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

    16.10.2015

    Review of the genesis of the most recent Gitana.

    Launched on 7 August 2015, the Mono60 Edmond de Rothschild will take the start of her first race in ten days’ time: the famous Transat Jacques Vabre between Le Havre and Itajai in Brazil. We take the opportunity to look back at the genesis of the second IMOCA in the Gitana saga, a latest generation Verdier creation designed for the next Vendée Glob…

    par Gitana

    Launched on 7 August 2015, the Mono60 Edmond de Rothschild will take the start of her first race in ten days’ time: the famous Transat Jacques Vabre between Le Havre and Itajai in Brazil. We take the opportunity to look back at the genesis of the second IMOCA in the Gitana saga, a latest generation Verdier creation designed for the next Vendée Globe.

    Boasting a planing hull beneath the waterline equipped with a ver high volume bow to enhance the boat’s speed performance, a so-called tumblehome hull shape (meaning that the beam at the sheer is less than the maximum beam of the hull) to limit the beam of the deck and thus make her lightweight, reduction of the freeboard, which further accentuates the sense of the boat’s beaminess, a flat deck and wide open, lowered cockpit, not to mention the foils… The Mono60 Edmond de Rothschild has no storage of assets in her favour.

     

    Mono60 Edmond de Rothschild 3D Overall Presentation
    This monohull was created and built for the Vendée Globe because even though we’re competing in the races that make up the Imoca race schedule in 2015 and 2016, the round the world race is our primary objective. The entire philosophy of the project is based on this premise. A lightweight boat is an obsession for all offshore racing teams as it is synonymous with efficiency and hence performance. However, from the outset of this project and given the nature of the major race we’re targeting, reliability has been our priority and formed the opening gambit in our specifications. My last experience in the Vendée Globe (his 2nd participation) resulted in a retirement following technical damage, so I know full well that in order to win a race, first you have to finish it! Added to that, the Multi70 experience has been very useful as it has enabled us to ‘shake up’ a few prejudices. Even if on paper a slightly more solid and hence slightly heavier boat should be slower, in reality the trust we have in such a boat enables us to push her hard with complete confidence. Sébastien Josse Skipper

    Eleven month’s construction

    +100 people involved in the project

    10,000 hours of studies (naval architects & Gitana’s design office)

    150 plans exchanged

    30,00 hours of construction

     

     

    The Vendée Globe starts today,” said Sébastien Josse. “This event is something we prepare for over the long term and right now, with the launch of the boat, it will be on our minds on a daily basis. I say we because its teamwork that brings together a trio of elements: the team, the boat and the skipper… The guys have worked superbly well to enable us to have a machine such as this and now it’s down to me to fulfil my part of the bargain. The work goes on because there’s still a long way to go to optimise her and fine-tune her. It’s going to be full-on until the start of the Vendée on 6 November 2016 but we’re privileged to be here!” the skipper assures us. Sébastien Josse Skipper