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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

    21.02.2008

    Final ‘sprint’ for Gitana 13.

    The fifth week at sea for Gitana 13 in the Route de l'Or has been marked by a change of hemisphere – early on Tuesday night – and by the crossing of the tricky Inter-Tropical Convergence Zone. And it was with a Doldrums, which proved considerably less cooperative than its Atlantic homologue, that Lionel Lemonchois and his nine crew had to work with…

    par Gitana

    The fifth week at sea for Gitana 13 in the Route de l’Or has been marked by a change of hemisphere – early on Tuesday night – and by the crossing of the tricky Inter-Tropical Convergence Zone. And it was with a Doldrums, which proved considerably less cooperative than its Atlantic homologue, that Lionel Lemonchois and his nine crew had to work with. Setting out from New York on 16th January, they are currently positioned less than 2,050 miles from the final destination of San Francisco, after 35 days sailing. However, these last few miles are likely to cause the men no end of trouble aboard the maxi-catamaran equipped by Baron Benjamin de Rothschild.

    Though their passage of the ITCZ on the Atlantic coast took place without the slightest difficulty – it only lasted a few hours – the second Doldrums along the La Route de l’Or course have proven to be more complicated. “Our second Doldrums were fairly spread out but not at all violent. We had some very shifty winds and some big clouds, which generated a lot of rain. However, contrary to what you can sometimes encounter when traversing this zone, the jumps in wind were never overly brutal. Nevertheless, we had to work with light winds for over two days in order to pick our way through to the exit” stated Lionel Lemonchois.

    This exit was located by the crew of Gitana 13 last night at around 7° latitude North. Since then, Lionel Lemonchois and his men have set off on a NW’ly heading on a reach (beam wind). However, in the next few hours the ten sailors will encounter moderate N’ly winds. This air flow will impose an upwind point of sail which, as we are regularly reminded, doesn’t sit too well with the 33 metre catamaran: “Our last few miles upwind will be very uncomfortable both for the boat and for the men. And the perspective of over 1,500 miles in a headwind is slightly clouding the joy of the imminent finish” announced the skipper of Gitana 13 before concluding: “On this record, we really haven’t had much of an opportunity to slip along, apart from on the first quarter of the course as far as the equator. We’ve either had the wind three quarters aft, forced to make some tack changes, or we’ve been upwind, which is a long way off Gitana 13’s preferred point of sail!”

    In this way, the final sprint for Lionel Lemonchois and his nine crew may well take on the form of a ‘Way of the Cross’ since it will take several days of headwinds before they can inscribe the word ‘end’ on their first record of 2008. According to the latest estimates the maxi-catamaran, in the colours of LCF Rothschild Group, may well make its entrance into San Francisco Bay and slip under the Golden Gate Bridge in a week’s time, with their arrival planned for Thursday 28th February.

    A brief history

    In the 80’s, racers – whether in crewed or solo configuration – re-established the prestigious “New York – San Francisco” route as the fashion of the time and measured themselves against the time set in 1854 by the clipper Flying Cloud. The time of 89 days 8 hours, which was to remain the reference time for over 135 years! The reasoning behind this is that the 14,000 miles course between the East coast and the West coast of America, is far from simple. Evidence of this came from 1983 to 1994, with nine yachts setting off on this historic route, and only five of then managing to make San Francisco, three of them with a new record under their belt. Dismastings, shipwrecks and capsizes were to mark the history of the Route de l’Or.

    1989 was to be the year with the greatest number of attempts, a total of five yachts taking the start. Four of them made San Francisco but only two managed to get the record. Warren Luhrs and his two crew, aboard the monohull Thursday’s Child, were the first to dethrone Captain Josiah Perkins Cressy and improve on the time of the Flying Cloud by over 8 days. Some months later, the trimaran Great American tried its hand and wiped the slate clean by establishing a new reference time of 76 days 23 hours and 20 minutes. In 1994, the sailor Isabelle Autissier, who had a certain Lionel Lemonchois among her crew, then went on to snatch the record with a time of 62 days 5 hours and 55 minutes.

    It is within this context that the idea of a race with 60 foot monohulls between New York and San Francisco saw the light of day … it was quite naturally christened La Route de l’Or and set off from New York in January 1998! The technological progress and the appeal of a close contact race drove Yves Parlier and his crew to cross the finish line, in the form of the Golden Gate Bridge, after 57 days 3 hours and 21 minutes.

    Figures of the record

    The time to beat: 57 days 3 hours 21 minutes 45 seconds, record set by Yves Parlier and his crew in 1998.

    Start from New York: Wednesday 16th January, at 1629 (UT)

    Passage of the equator (Atlantic Coast) : Wednesday 23rd January at 0724 (UT), 
    Passage time – 6 days 14 hours 52 minutes

    Passage of Cape Horn: Friday 7th February at 2354 (UT),
    Passage time – 22 days 7 hours 25 minutes

    Passage at the equator (Pacific coast) : Tuesday 19th February at 1256 (UT), 
    Passage time – 26 days 17 hours 32 minutes