Sailship Sonabia 2

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Sonabia 2 – Antarctic

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