Class notation for vessels breaking ice of 1.5 m level thickness.

Purpose

The notation verifies that the vessel has sufficient strength and equipment to operate without assistancein the specified Arctic ice conditions.

Benefits

You get a vessel which can operate unassisted in ice-infested waters in the sub-Arctic, Arctic and/or Antarctic regions.

Features

The rules for vessels for Arctic service vessels are intended to be applied to vessels operating unassisted in winter ice with pressure ridges, as found in the Arctic, sub-Arctic and/or Antarctic regions. Ramming is not anticipated.

The following matters are covered by the classification:

• Materials in structures exposed to low ambient air temperatures

• Subdivision, intact and damage stability

• Hull girder longitudinal and transverse strength

• Local hull structures exposed to ice loads

• Rudder and steering gear

• Propellers and propulsion machinery

• Sea suctions for cooling water

• Air starting systems

• Additional requirements relating to rudder, pods and hull appendages with respect to local dimensions and the effect of direct ice loads

Process

Newbuilding plan approval and site survey in accordance with relevant parts of the Rules. Approval is carried out at responsible approval centre. Site survey is carried out at the building yard and its suppliers.