Mini Transat 6.50

Mini Transat 6.50 also known by a number of alternatives Mini, Class Mini, Transat 650 is a development measurement controlled offshore sailing primarily used for racing in the Mini Transat Race hence the name.[1]

Development
DesignerVarious
Year1976
Builder(s)Various
Boat
Crew1 or 2

Background

History

The Classe Mini conceiver around the Mini Transat race is run bi-annually and first took place in 1977. The race is a solo transatlantic yacht race. The class rules focus on this event and encourage development while controlling both costs and design and fitout safety requirements. The size of the boat allows for more experimentation in design without the costs of larger classes.

Class Association

The class association is an owner led organization that administers the rules and co-ordinates a series of single and double handed events for the class. In response to the perceived challenge of sailing small high-performance boats the class has created rigorous trials, equipment, and inspection requirements to add promote safety. The mini Transat class is largely French in its makeup but the class has tried to encourage international entries.

Development

Mini Transat Race Design Influence

Due to the downwind nature of the racing across the Atlantic Ocean designs tend to be beamy, being nearly half as wide as it is long. The wide flat stern is designed to promote planing similar to a surfboard. As a consequence of the wide beam twin rudders are pretty much standard so that one rudder remains in the water when heeled.

Canting Keels

The class led the way with canting keels – due to their small size there is a design requirement for them to be self-righting when capsized.

Scow Hull Form

The constraint of the box rule led to the introduction of the Scow hull form when David Raison's Mini used the hull shape to win 2011 victory, which may in fact, revolutionize open ocean racing if not sailing altogether.[2] This design trend has now influenced the design of both the Class40 and IMOCA 60 class.

Foiling

The Magnum began an even more radical 'semi-flying' scow that uses a host of design tricks, including wings/foils and a telescopic canting keel, a retractable bowsprit and an Asymmetrical spinnaker, has been designed in France.[3] This has led on to the launch of a fully foiling boats with a production foiling mini transat from pogo being launched in 2020.

Division

There are two divisions:

Prototype

The prototype division is more liberal with respect to dimensions, such as keel depth and mast height, and it allows for advanced technology such as "canting" keels and carbon-fibre masts. The prototype class is approximately 7% faster.

Series (Production)

Production boats use approved designs and comparatively conservative materials.[4]

DesignBuilderBuilder NatDesignerYearsNo. BuiltNotesRef.
CocoArchambault (Vienne)  FrancePhilippe Harlé1985 - 2000s105
Super Calin 6.50Magnan  FranceJean-Pierre Magnan1997
NausDisegno Contrario  FranceZancope2000
Mistral 6.50AMC Marine  FranceJoubert & Nivelt2002
Pogo 1Pogo Structures (Finistère)  FrancePierre Rolland1994-2002125[5]
Pogo 2Pogo Structures (Finistère)
or California's Open Sailing (USA)
 FranceJean-Marie Finot2003[6]
Pogo 3Pogo Structures (Finistère)  FranceGuillaume Verdier2014[7]
Pogo FoilerPogo Structures (Finistère)  FranceGuillaume Verdier2019 Onwards[8]
Dingo 1Marée Haute (Finistère)  FrancePierre Rolland2004
Tip Top 650Voiliers Bepox  FranceSam Manuard Yacht Design2005
Estarellas Zéro
Nacira 650FR Boating  FranceAlexis Muratet2007-201218
Azimut GintoAzimut  ItalySébastien Magnen2007
Dingo 2 (or D²)Marée Haute (Finistère)  FrancePierre Rolland2008
RG 650RioTecna  ArgentinaG Yacht Design2011
Argo 650Andrés Durán Yachting S.L  SpainMarc Lombard2012[9]
Ofcet 6.50chantier ofcet (Charente-Maritime)  FranceEtienne Bertrand201417
Maxi 6.50IDB Marine (Finistère)  FranceDavid Raison2018 - Onwards[10]
Vector 6.5Yacht Service Poland  PolandEtienne Bertrand2018 - OnwardsScow[11]

References