but genuinely one-design performance. So the post-launch review not
only led to a reduced sailing weight, it narrowed the room for variances or indeed error. The whole process will produce a much closer class than would otherwise be possible. The next step is to bring the
in the lead density that are unavoidable when casting. So whereas the boats seen and
tested in Sardinia may have been almost down to the design weight, those pockets in the keel bulb were filled with a lot more foam than was wanted. With the diligent work of the build team in Finland, and the ongoing support of designer Juan Kouyoumdjian and his team, not to mention the commitment of class president Jochen Schümann, the standard ClubSwan50 has gone up a gear from when the boat first appeared. Righting moment is now higher, control is up and overall performance is hitting the mark. The most important element
here is that this full review of the boat has allowed Nautor to establish even tighter controls on the manufacturing process to ensure that the boats all come out within a very tight weight range. Not only this, but the righting moment and trim characteristics are also tight. The result is that Nautor has the confidence that the class will produce not only exciting sailing,
Perhaps the most significant refinement to the CS50, once the first few boats had been thoroughly trialled and tested (top), was to take advantage of a gallery in the keel bulb,
adding ballast and increasing righting
moment, at the same time as shaving a few kilos off elsewhere to compensate. All new boats are delivered in this revised configuration as standard, while previous CS50s have all now been uprated to match. Note the racy carbon keel fin (above)
existing boats in line with these new, tighter limits. That is no simple task, but it will be achieved with a return to Nautor for a refit. That has been in mind ever since the approach was first considered, and all changes have been based around not only making these boats measure but also perform equally. The next question is what may be
done to the standard boat. Everyone has their own preferences and requirements. Unlike with a pure raceboat, there are additional elements to consider for a Swan – and this goes beyond simply selecting the colour. The company has pinched a protocol here from the car industry and only permit options that are available direct from Nautor. If what you want isn’t available in the options list, then you are out of luck. The advantage is that Nautor
knows the exact weight and trim effect of every option and they are either designed to be removable for racing, or weight adjustments can be made to compensate for them being in place. An extra complexity, but this is a Swan. The ClubSwan50 Class rules are
based on a standard World Sailing format and, using the final boat weights, they incorporate the tight controls now being applied. These rules will be sent to World Sailing
with the objective of the class being approved as an International Recognised Class in November. By that time there should be easily enough boats on the water to meet the World Sailing requirements, so plans for a world championship in 2018 can be set in motion. For 2017 the grand finale of the
ClubSwan50 racing programme will be the inaugural edition of The Nations Trophy, which will take place in Palma from 10 to 14 October, where a minimum of 10 ClubSwan 50s are expected to participate. All looks positive for an exciting
first season. The structure is in place for a full, longterm race schedule and a class that can become well established and provide exciting racing in fleets all around the world in coming years. It is rare that a new one-design
class plans ahead in as much detail as ClubSwan50 has. In this case the class management team, including Jochen Schümann, Enrico Chieffi, Ettore Mattiello and Claudia Tosi and Volvo Ocean 65 manager James Dadd, have been involved since very early on. This means that different views and requirements have been on the table when decisions are being made, not after the case. Such advance planning sets this new class in good stead for the future.
www.nautorswan.com
q Brought to you in association with
SEAHORSE 7
EVA-STINA KJELLMAN/2017
CARLO BORLENGHI
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