1. The new Océan Tundra is under construction at Groupe Océans's shipyard.
2. It dwarfs fleetmate Duga at the adjacent repair slip. Note the large escort skeg, and cut away forefoot for working in ice.
The tug will be fitted with a forward shiphandling winch and after towing winch-both with special weather protection features, and will be fitted with fire fighting gear.
3. Large ice horns will protect the ASD drives while backing in ice. The tug does have rolling chocks, not a common feature on ships that work in deep ice.
The photos show the large cooling intakes on the hull. These will in all likelihood be connected to heated seachests, to permit working in slushy ice. Engine cooling can be compromised in heavy ice if the seachests become clogged. External piped cooling devices, can be damaged by ice too, so the heated seachest system is used.