ENGLISH 11-07-2023 8/95 DUFOUR 41
I. GENERAL INFORMATION
Design category
Your DUFOUR 41 is design category A.
A category A boat is considered to have been designed for sailing in conditions with winds below
10 on the Beaufort scale and the associated wave heights.
NOTE: While these kinds of conditions are generally encountered during long voyages, such as ocean crossings, they
can also occur just off the coast in areas that are not protected from wind and waves for several hundreds of nautical
miles. Depending on the weather conditions, gusting winds may reach speeds of up to 32 m/s.
This sailing capability also depends on the crew’s sailing skills, their physical abilities, the boat’s
level of maintenance and its fitting out.
Always take great care before setting out to sea.
DUFOUR cannot guarantee the boat’s performance in exceptional sea conditions (violent
storms, hurricanes, cyclones, twisters,)
SUMMARY OF DESIGN CATEGORIES
NOTE 1: the significant wave height is the average height of the upper third of the waves, which corresponds
approximately to the height of the wave as estimated by an experienced observer. In some waves, this value may
be doubled.
NOTE 2: Depending on the weather conditions, wind speeds may be temporarily increased by sudden gusts.
NOTE 3: Maximum average wind speeds taken from the UK Met Office Fact sheet 6.
It is absolutely vital to check the weather forecast each time you decide to set sail. Weather
bulletins can be viewed on various media and at the Harbour Master’s office.
Certification
DUFOUR has appointed the Institut pour la Certification et la Normalisation dans le Nautisme as
the notified body responsible for assessing your boat’s conformity with European Directive
2013/53/EU of 20
th
November 2013, according to module B certification.
Identification
The hull identification number is located on the starboard side of the transom. It comprises a
series of letters and numbers starting with FR-DUF….
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