"Battre un record ne dépend pas seulement des marins et du bateau, mais également du choix de la fenêtre météo."

Hydros.ch holds all the records for multihulls on Lake Geneva. 

The floating laboratory operated by skipper Daniel Schmäh achieved a new record time on 3 May last year on the Ruban Bleu course, setting a very high standard for future attempts and for other competitors.

In order to make the best decisions on the water, Hydros has built up a team of experts in meteorology. For three years, Hydros has counted the Federal Office Meteorology and Climatology MeteoSwiss as one of its partners. MeteoSwiss provides Hydros with weather maps that indicate wind conditions and areas of pressure in fairly high resolution for the next three or so days. These reports are provided on an ongoing basis, which allows the team to analyze them and find the ideal strategy.

"We check the weather on a daily basis. Our partnership with MeteoSwiss means we can work with up-to-date, precise information, which is of considerable support. When preparing for an attempt to set a new record, we look above all for a period with wind over the entire lake, preferably the cold north/northeastern 'bise'," explains Daniel Schmäh, skipper of Hydros.ch

To gain expert advice from a Lake Geneva expert, Daniel Schmäh discusses and exchanges ideas with retired meteorologist and recognized sailor on the lake, Bernard Dunand. Together, these two keen strategists share ideas, discuss solutions, and form a plan of attack. 
Thanks to the assistance of these partners, the Hydros team is able to choose the weather windows that are ideal for attempting a new record and can prepare a general strategy in advance to optimize navigation.

On 3 May last year, reports indicated a good "bise" window (northeastern wind conditions). From the day before, the team was on standby, examining the reports in more detail. Daniel Schmäh and Bernard Dunand drafted large parts of the strategy; the crew prepared to set sail in the morning. Once on the water, the crew was not allowed to access weather reports; they therefore reviewed the navigation plan by reading the lake directly.

The outcome: the crew smashed the Ruban Bleu record (a Syz&CO Leman Sailing Speed Record), completing the course in 4 hours and 30 minutes.

Photo: Loris Von Siebenthal

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