The D35 was developed as a response to the ever-increasing costs and extremism in multihull sailing on Lake Geneva. A group of owners, including Ernesto Bertarelli, got together with designer Sebastien Schmidt to bring to life a fast, high-tech, but affordable one-design catamaran. In 2004, the first eight boats were launched, since which the class has gone up to twelve boats built.


When the first D35s were launched in 2004, an annual circuit was created. The Julius Baer Challenge combined the classic Lake Geneva regattas – including the Bol d’Or – with several Grand Prix events exclusive to the D35 class. 

Then called the Vulcain Trophy until 2014, the championship is from 2015 known as the D35 Trophy. As well as the Bol d’Or – the classic end-to-end race on Lake Geneva – it includes the famous Genève-Rolle-Genève, and six Grands Prix. With points awarded for each event, competition for first place on the championship podium is often fierce.

Alinghi is extremely proud to have won five D35 titles, continuing a proud tradition of Lake Geneva sailing.

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The design of the D35 is an evolution of Sebastien Schmidt’s previous work, the 40ft Alinghi catamaran Le Black, with a central pod used to tie the structure together and withstand the stresses from the platform and rig. The structure is light, which – when coupled with a wing mast that can be rotated up to 45 degrees and a maximum of 230m² sailplan – means that the boat can hit top speeds of some 27 knots.

  • Construction: Decision SA
  • Length (Overall): 14.95m
  • Length (Hull): 10.81m
  • Width (Overall): 8.74m
  • Width (Hull): 6.89m
  • Dry Weight: 1,200kg
  • Main Sail Area: 81.6m²
  • Solent Area: 40.7m²
  • Drifter Area: 80m²
  • Gennaker Area: 150m²
  • Top Speed: 27 knots
  • Crew: mini 5 - maxi 7, 470kg (maximum) 

D35 News


21 May, 2017

Alinghi’s red-hot form in all formats continued today with another win in the D35 Trophy, making it two out of two in the championship’s first two events. Taken alongside the team’s impressive performances on their GC32 in the Extreme Sailing Series, the season has started very well indeed. Alinghi had built up a good lead heading into today’s final day, the third of the Open de Versoix. The wind remained patchy, but when it did blow, four races could be run. Having notched a third-place in the first, the team were unlucky not to secure a win in the second when, having led for much, they were pipped by Ylliam, who took the opposite side on the second beat and found the wind. Still, a second place increased the team’s lead overall, and in the next race, amid a breeze that was threatening to go to sleep and with big differences in pressure across the racing area, the team managed a fourth-place. That was followed, fittingly given the team’s overall performance, by a win in the last race of the day and of the Open de Versoix. Having been in the lead, the win was declared as Alinghi’s as the wind finally gave-up. Overall, a very satisfying performance in challenging conditions and a great way to continue the start of this 2017 racing season, with the team’s lead at the top of the D35 rankings assured. The focus is now on keeping this kind of level throughout the summer, with the D35s back in action on June 9th for the Grand Prix Realstone. Afterwards, Nils Frei was able to give an update on the injury that has kept him away from sailing for the past few events. Speaking in a video that is on the team’s facebook page, Nils confirmed that his foot is a lot better than it was, but that he is still two-to-three weeks away from being able to sail with the team again. His crew send him their best wishes for his continued recovered and look forward to welcoming him back so that he can help them to continue this great run. Final Results Alinghi: 15 points Zen Too: 31 points Ylliam Comptoir Immobilier: 32 points Mobimo: 33 points Racing Django: 36 points Swisscom: 36 points Okalys: 40 points Realteam: 41 points To find out more Photo Credit © Loris von Siebenthal If you want to know more about how to follow the racing, about Alinghi's team, or just about this regatta in general, you will find all that you need in this news story. #GoAlinghiGo

An almost faultless display

20 May, 2017

Having won the opening round of the 2017 D35 Trophy, Alinghi headed into the Open de Versoix full of confidence. On Day 1, the wind had nearly refused to play ball, with the result that only one race could be run. In that race, however, the team managed to dominate. Having started on the port side and found the breeze before the rest of the fleet, Alinghi crossed all of their competitors and secured the win having been in front throughout. That form continued today on Day 2, with a display from which the team can take great pride and pleasure. The day’s first race, saw the team’s tactics pay off, securing a second win in a row. That was something – narrowly - not to be repeated in the next race, but a commendable second-place finish was followed by another first in the third race of the day. The only slight blot on the copybook was the last race of the day, in which the team made some mistakes. Nonetheless, it was a fantastic day for Alinghi, who lead the fleet conveniently heading into tomorrow’s final day of this Grand Prix and who will approach it looking to make it two victories from two. Allez Alinghi! Results after day 2 Alinghi: 5 points Mobimo: 11 points Zen Too: 15 points Ylliam Comptoir Immobilier : 16 points Okalys: 16 points Swisscom: 17 points Racing Django: 18 points Realteam: 24 points To find out more If you want to know more about how to follow the racing, about Alinghi's team, or just about this regatta in general, you will find all that you need in this news story. #GoAlinghiGo

A win on the lake secured with a race in hand

7 May, 2017

Having built up a lead over the rest of the field after the first two days of racing in the opening Grand Prix of the D35 Trophy, Ernesto Bertarelli's Alinghi could afford to sit back a bit, focusing on staying out of trouble and protecting their lead. This, amid the rain and patchy wind on Lake Geneva, they did, finishing mid-fleet in the day's opening four races before stamping their authority with a convincing win in Race 12 that secured the victory even with the final race still to be launched. Following on from last weekend's GC32 win in China, this D35 performance caps an excellent couple of weeks for the team. Afterwards, the crew reflected on a job well done: Ernesto Bertarelli, helmsman and skipper: "We had very good wind conditions in the last two days, which made for very competitive races with a fleet very close to one another in terms of speed and talent, making for races in which positions were interchanged regularly. I think this regatta was won in our ability to improve on seemingly bad positions in races, picking up important points. That was the difference. "We are, of course, happy to have won and it's a victory more special because of the return of Pierre-Yves to the crew after a year off the water and who has stepped-up in Nils's injury-enforced absence. "Finally, I would like to thank all the volunteers who did so much to organise the event over its three days and who are out on the water come rain or shine - more often rain this weekend!" Arnaud Psarofaghis, headsail trimmer: "We did well and were pleased to win the Grand Prix in the penultimate race​, meaning we didn't need to participate in the last. We chose to take that option in order to let the others fight for second place without us influencing the race." Nicolas Charbonnier, tactician: "We had enough points to secure first place, so decided to exercise our option not to line-up for the start of the last. In the D35, as opposed to Extreme Sailing Series, a team's worst score is scratched, meaning our 'DNF' would not have counted in our tally, as we'd previously finished higher than the equivalent last place. With a nine point cushion over second, our decision was also influenced by the fact that these boats are quite fragile and there is no point seeking out risking it being damaged if, as we were, you are in a position to avoid it. Overall, it was a really good Grand Prix and, of course, we are very happy with the outcome." Yves Detrey, bowman: "It has been a great couple of weeks - we won in China and came directly to this Grand Prix, in which we've continued our winning form. It's also nice, after all this sailing, to have a week break ahead of the next Grand Prix." Next race: D35 Open de Versoix, 19th - 21st May. Final results Alinghi: 34 points Zen Too: 43 points Okalys: 49 points Ylliam Comptoir Immobilier : 49 points Racing Django: 54 points Realteam: 54 points Swisscom: 59 points Mobimo: 65 points To find out more Credit for photos © Loris von Siebenthal If you want to know more about how to follow the racing, about Alinghi's team, or just about this regatta in general, you will find all that you need in the recap at the bottom of this news story. #GoAlinghiGo


6 May, 2017

After conditions yesterday put pay to a full day of racing in the opening event of the D35 Trophy, the teams would have been within their rights to have been worried about the light breeze and persistent rain that welcome the fleet on the waters off the SNG on this, the second day of the Grand Prix d’Ouverture. However, the seemingly ominous early conditions gave way to a good wind, meaning that a full six races could be run, making for some truly competitive and interesting sailing. The day’s first race didn’t exactly go to plan for Alinghi, who could only manage a fifth-place finish, but from then on things just got better for Ernesto Bertarelli and his team. Two finishes in third place were superseded by a great three race victories, meaning that Alinghi holds a commanding lead of seven points heading into tomorrow’s final day of the Grand Prix. As the team knows, however, the job is not yet completed and so the focus is very much on repeating today’s performance. Pierre-Yves Jorand, the team’s coach and mainsail trimmer on the D35, said of day two that: “The conditions today were tough and we had a difficult start, recording a fifth place in the first race. However, that is to be expected given that, as a team, the season is just coming together, and we were really pleased with the manner in which we rallied to record some really positive performances in the following races. We are aiming for more of the same tomorrow.” Results after day 2 Alinghi: 11 points Ylliam-Comptoir Immobilier: 18 points Zen Too: 18 points Realteam: 23 points Racing Django: 29 points Swisscom: 29 points Okalys: 33 points Mobimo: 36 points   To find out more Credit for photos © Loris von Siebenthal If you want to know more about how to follow the racing, about Alinghi's team, or just about this regatta in general, you will find all that you need in the recap at the bottom of this news story. #GoAlinghiGo