Features of the Safran 60-foot monohull

One-design keel and mast

IMOCA class standards restrict the number of appendages to five: a keel, including a mandatory fin, two daggerboards and two rudder blades. The naval architects studied the rudder blades in depth to come up with an optimized shape and weight for maximum efficiency. For the mast, architects have to choose between two standard types: a conventional mast with spreaders or a rotating wing mast. It is the latter that Morgan Lagravière chose for the new Safran. This choice determined the shape, cut and weight of the sails. The architects, skipper and sailmaker worked together to develop the sails.

 

Foils

The foils (or lifting surfaces) are appendages shaped like a "Dali moustache" that allow IMOCA class monohulls to increase top speed by nearly two knots, from reaching to running. "In general, the stronger the wind, the more the appendages (keel and foils) lift the boat, making it lighter and faster," explains architect Vincent Lauriot-Prévost. "Upwind, the foils are a handicap, because they generate a lot of drag. But upwind sailing only represents 10 to 15% of the conditions encountered in the Vendée Globe."

Specifications of the Safran Open 60 class monohull

  • Launched: March 5, 2015, at the Keroman submarine base in Lorient, Brittany
  • No. 25
  • Home port: Concarneau (Brittany, France)
  • Architects: Van Peteghem & Lauriot Prévost (VPLP) and Guillaume Verdier
  • Shipyard: CDK
  • Livery/visual design: Isabelle Keller
  • Length: 18.28 m (60 ft)
  • Beam: 5.80 m
  • Hull draft: 4.50 m
  • Rotating wing mast (IMOCA standard)
  • Mainsail: 160 m2
  • Gennaker: 280 m2
  • Solent: 150 m2
  • Staysail: 100 m2
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