Sailship Sonabia 2

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Sonabia 2 – Antarctic

See also Sailship Sonabia

Robust, simple, rustic: an austral expedition sailship without compromises.

With her impact resistant hull (60mm thick), her lifting keel made of massive steel, her lifting rudders, Sonabia 2 can be grounded without risk.

 

    • Dimension 15m x  4.55m
    • Draft 2.90m to 1.40m (keel up)
    • Weight: empty 11.4 tons, loaded 13.5 tons
    • Engine 85 HP
    • Sails area 110m2 to 16m2 (heavy weather)
    • Fuel tanks 1280L
    • Autonomy with engine: 2100 nautical miles
    • Water tanks 700L + water maker 60L/h.
    • Persons aboard:
      • Antarctic: 5 persons+ 2 crews
      • Ventisqueros, Cape Horn: 8 persons + 2
    • Safety devices for Antarctic expeditions:
      • floating survival suits, lifejackets, 2 liferafts, emergency beacon (EPIRB), 2 satellite phones, 3 fire extinguishers, CO detector…

 

 

Content

  • Design – Construction
  • Hull
  • Keel and rudders
  • Sails and rigging
  • Engine
  • Mooring
  • Energy
  • Heating
  • Water
  • Steering
  • Instruments
  • Interior
  • Safety

Design – construction

  • One-off design
  • Architect David Reard
  • Built in Socoa, Basque Country, France
  • Construction 2013-2021
  • Certified norm 2013/53 UE (Europe), division 245 (France)
  • Navigation zone: without limits
    • Category of construction A
    • Category of safety devices 1

 

Hull

    • Multilayer material
      • Thickness 46mm (top) – 60mm (below water)
      • Internal: sandwich plywood epoxy-glass 14mm
      • Middle: PVC foam, compartmentalized and reinforced with fiberglass
      • External: epoxy glass, thickness 4mm (top) – 12mm (bottom)
    • Bow and aft protection:
      • Outside: crash boxes (foam)
      • Inside watertight bunkers
    • Impact tests IBT method,
      • 20kg weight falling from 3m, 3 impacts without perforation

Keel and rudders

  • Keel
    • Massive steel covered with epoxy fiberglass
    • Weight 3.4 tons
    • Lifting mechanism: electric winch
    • Draft: 2.90m – 1.40m

 

  • Rudders
    • Massive wood reinforced with fiberglass
    • Thickness 75mm.
    • Hanging at the stern
    • Liftable in case of shock or for grounding
    • 2 lateral rudders
    • 1 auxiliary central rudder (for engine)

Sails and rigging

Mast
    • Material: aluminium
    • Height 20m
    • 3 levels of spreaders.
    • Triple triangulation
      • Front stay + shrouds + backstays
      • Middle stay + running backstays
      • Baby stay + diagonal shrouds
Sails
      • Genoa, yankee, staysail, stormsail
        • All sails with hanks
      • Main sail with 4 reefs
      • Sails area
        • Genoa + mainsail ~ 110m2
        • Stormsail + mainsail 4 reefs ~ 16m2

 

Engine

    • Nanni 85 HP
      • 4 cylinders, 3L
      • Turbo charged
    • Mechanical gearbox Kanzaki
    • Shaft: 40mm diameter, stainless steel AISI316.
    • Propeller: 3 fixed blades, bronze
    • Tanks:
      • Main 2 x 600 L
      • Buffer 80L (gravity feeding)
    • Fuel consumption: average: 3 L/ H at 5 knots
    • Autonomy with engine 2100nm
    • Double control panel, inside and outside

Mooring

    • Main anchor: Rocna 33 kg. + 100 m chain, 10mm high resistance (grade 40).
    • Emergency anchor: 20 kg + 40 m chain, 10mm high resistance
    • Mooring lines:  3 x 100 m
    • Tender:
      • Inflatable tender, capacity 3 persons
      • Outboard Yamaha 4H
      • Spare tender, inflatable, 3 persons

Energy

    • Solar panels 4 x 50W
    • Wind generator 300W
    • Alternators 2 x  100A
    • Service battery bank: 560AH (8x70AH)
    • Engine battery: 110AH
Devices chargers
    • 12V plugs lighter type in cabins
    • 220v available in main room

Lights

    • Multiple portlights in each room for natural light
    • Roof lamps and reading lamps equipped with LEDs

Water

    • Fresh water tanks:  2 x 350L.
    • Water maker
      • 60 L/h (40L/h in the Antarctic).
      • Emergency water maker 5 L/h
    • Pressurized sea water in all sinks and wash basins
    • NO pressurized hot water
      • Good ol’ way: make hot water on the stove to take a shower.

Heating

Sources of heat

      • Fuel stove (Refleks 2000K), with electric fan to spread  warm air
      • Engine heaters (2 heat exchangers with fans)
      • Hull and deck dark gray in order to capture solar heat

Thermal insulation

    • Hul and deck: 30mm thick insulating foam
    • Insulating bottom layers for mattresses (polycarbonate honeycomb)
    • Double glazing
    • Independent ventilation in each room (circular holes with deflector and removable lid)

Steering

    • Exterior + interior
      • Cockpit: tiller
      • Pilot house: joystick.
    • Autopilot Furuno
      • Electric drive Raymarine type 2
      • Double control (cockpit + pilot table)
      • Spare parts and equipment

Instruments

    • GPS Furuno.
      • 2 additional GPS (always connected)
      • 1 handheld GPS
    • Radar Lowrance
    • AIS class B Camino 108
    • Instruments  Furuno
      • Wind, speed, depth…
    • Barograph Nasa Meteo Man
    • Other instruments:
      • Barometer, clinometer, clock

Interior

Cabins and berths

    • 2 rear cabins with double bed
    • 2 front cabins with superposed berths
      • Convertibles into 1 single cabin with double bed
    • 2 berths in the pilot house (for crews)
    • Total: 10 beds

Front cabin, rear cabin, pilot house

 

Dining room

    • Central table, bar-like around the keel
    • 10 seats, stool type.

Resting zone

    • 4 bean bags in the main room to rest and/or sleep

Kitchen

    • In the main room, along a narrow pathway (prevents falls)
    • 2 large sinks (30L)
    • Pressurized fresh water + sea water
    • Grey water tank: 80L
    • Gas stove with 2 burners
      • Additional removable stove (“plancha”)

Bathrooms (x 2)

    • Sea toilet Lavac
    • Large wash basin (30L)
    • Seat for shower
    • Fresh water with shower spray gun and hose
    • Pressurized sea water
    • Manual pumps for WC and shower waste water
    • Black water tank: 75L in each bathroom
    • Gray water tank: 40L in each bathroom
 
Bathroom (without and with shower floor)
Pilot house
    • Panoramic visibility
    • Instruments on front panel and roof panel
    • 2 berths for the crews

 

 

Visibility in the pilot house – Drake passage, 2022 02 05, wind 25 knots and more

Safety

Deck
 
    • Anti slippery cover (sand + epoxy resin).
    • High stanchions (minimum 80cm above deck)
    • 3 stanchion lines, dyneema polyester
    • Deck lifelines centered and elevated to tie oneself short
    • Deep cockpit, protected against waves
    • Dyneema polyester handles around the cockpit and the pilot house
Personal safety equipment
    • Survival floating suits SOLAS, made of thick neoprene.
    • Lifejackets with tethers
    • Safety belts

Emergency

    • 2 liferafts (4 + 6 persons) for easier handling
    • Emergency beacon (EPIRB) with GPS, Furuno
    • 2 Iridium satellite phones
    • Fire: extinguishers 3 x  2kg, anti fire cover, CO detector.
    • First aid kit
    • Flooding: 3 electric bilge pumps
      • 1 emergency manual bilge pump