Grand Integral, a fast and robust cruiser: cruising at 10 knots (photo © Michael Amme 2015)

Nanuq, the polar bear in the Inuit language, is a Grand Integral, a 60-foot vessel, the third in the series, designed and built to minimize environmental impact while accommodating a crew of up to 12 to safely travel, work and live in the remotest places, including the polar regions, in summer and winter.

Since launching in 2014, she has accomplished several missions and four seasons in the Arctic, including two winters in Greenland and has sailed as far as 82° North.

Due to the flexibility offered by doing research from a sailboat, Nanuq provides an ideal base camp for environmental science in the arctic..

Compared to traditional hydrographic vessels or heavy icebreakers, Nanuq can reach out over much longer periods of time since funding is much easier and still provide self-sufficiency for (food, supplies, energie) for periods beyond 1 year. As such, Nanuq is an efficient alternative for support and logistics in Polar exploration and science and more generally speaking all remote waters and fragile natural environments.

Visit Nanuq

Clic on camera of choice ...

Nanuq is a real '4x4' of the seas favouring the robustness and simplicity, a guarantee for safety, reliability and autonomy that are prerequisites in a context of navigation off the beaten track. So you will find no unnecessary or complex system on board. As a consequence, life on board is simple: hot water for the bathroom is prepared in the kitchen and a single toilet is rather rare on a 60 foot vessel. But they are offset by comfortable dimensions. There is no fridge (useless in the north), nor hot water under pressure; it is prepared and stored in thermos bottles, ready to prepare a soup or a hot drink. The living quarters are designed according to the passive house standard. Thermal comfort is exceptional, indoors as well as in the outdoor watch area, that benefits of the occasional heat from the engine.


  • Type: Integral 60
  • Launched 2014
  • Length: 17.80m
  • Beam: 4m70
  • Sail area: 165mē jib, main and mizzen
  • Displacement: 18t
  • Draft: 1.45-2.40m
  • 2 double cabins with bunk for extra person plus crew cabin with 6 berths
  • Engine: inboard Diesel 85hp
  • Fresh water tank: 800l
  • Diesel tank: 1200l

Grand Integral - conveniant beaching in Morgat(photo © Peter Gallinelli 2014)

Large rear dek and dinghy garage close to the sea (2m x 4m), ideal for the deployment of equipment, diving ... but also swimming and lazing !
NB: rudders will swing up in case of collision (ice, debris, ...)

Visit on board


Visit the photo wall ... here

The boat is built according to the design of the Grand Integral. Due to its size and robustness, the design is ideal for adventure sailing. The metal hull was built by the boatbuilders Dujardin Icofrance in France. Peter and his team in Geneva built the “Igloo”.

Rotation Of Nanuq's Hull from Matt Ryan on Vimeo.

This is the interior of the “Igloo” during the last stage of construction.

The "Igloo" includes the roof and living quarters. It is built using the sandwich technique: lightweight shaped high performance polystyrene blocks that were specially produced by our partner swisspor are assembled to make the sandwich core (thermal conductivity 0.029 W/(mK)). Fiberglass and epoxy resin skins provide strength, impact resistance and weatherproofing. This combination of materials gives structural strength and high thermal insulation. The completed “Igloo” weighs only 1300kg and can be dismantled into five easily transportable parts.

Photos (c) Peter Gallinelli : igloo transport with Larag SA and assembly - July 2012

Specific equipment

  • High perfromance thermal insulation
  • High performance glazing
  • Heat recovery from exhaust air
  • Electric cabin heating and Diesel backup
  • Cockpit heating system (hot air from engine)
  • Winter entrance
  • Reinforced hull plates
  • Reinforced structural crossbeams
  • Pivoting rudders with safety fuse
  • Single reinforced hull fitting
  • 3 watertight compartments
  • Air-cooled engine
  • Onboard composting unit
  • Two self-righting liferafts
  • Emergency beacon (EPIRB)
  • Radar, AIS, GPS
  • HF receiver, weather-FAX / NAVTEX
  • Handheld, station VHF radio, 4 walkie-talkies
  • Two 1.5kW wind generators
  • 200Wp solar panels
  • 0.4 and 1.8kW inverter
  • Two ice poles
  • Ice drill, saw, pick
  • Piolets, crampons, two pulkas
  • Drysuits

Manufacturers, suppliers

  • Design : Peter Gallinelli -
  • Metal work: Dujardin Icofrance
  • Composite : DIY
  • Outfitting : DIY
  • Rigging : Sparcraft
  • Sails : Voiles Gautier associés
  • Deck fittings : Anderssen (winchs), Ronstan (rails), Antal (blocks)
  • Deck panels and portholes: Goiot
  • Windlass: electric 1700W, Lofrans
  • Anchors : 2x40kg + 100m chain 12mm, FOB
  • Engine : Diesel 3.5 litres, air cooled, Deutz
  • Transmission : hydraulic, Technodrive
  • Batteries : liquid, 6 x 4V 650Ah, Rolls
  • Thermal insulation : expanded/extrudes polystyrene, swisspor
  • Glazing : triple glazing, U = 0.5 W/(m2K), AGC
  • Epoxy system : epoxy, Axson
  • Paints en finishing: PU, Asmedia
  • Electronics : B&G

Photo: Grand Integral - full speed ahead (photo © Michael Amme 2015)

More information, see


All rights reserved © peter gallinelli November 2017^9