Ice-breaker oil tanker - with ice girdle compartments in double skin hull

摘要

'Icebreaker-tankers' with a reinforced outer skin in the form of at least one ice girdle compartment, which is provided with a frozen water filling during the voyage through ice-floe contg. waters. While giving a marked increase in strength to the ice breaker-tanker hull so that it can successfully withstand impact with floating ice floes or blocks, the girdle compartments may be emptied in travelling through warmer waters so that no permanent wt. penalty is imposed e.g. as is the case where the filling is reinforced concrete. The ice breaker-tanker has a hull of double skin construction with the usual reinforced bows. The two skins are pref. fabricated from a steel having good ductility at sub zero temps.