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History
Finnish-Swedish ice class
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Finnish-Swedish ice class is an ice class assigned to a vessel operating in first-year ice in the Baltic Sea and calling at Finnish or Swedish ports. Ships are divided into six ice classes based on requirements for hull structural design, engine output and performance in ice according to the regulations issued by the Finnish Transport and Communications Agency (Traficom) and the Swedish Maritime Administration.
Product tanker Georg Essberger waiting for icebreaker assistance outside Loviisa in the Gulf of Finland. Its ice class, 1A, fulfilled the minimum requ
Product tanker Georg Essberger waiting for icebreaker assistance outside Loviisa in the Gulf of Finland. Its ice class, 1A, fulfilled the minimum requirements of the traffic restrictions at that time and the ship was escorted to port.
Cruiseferries sailing on regular routes between Finland, Sweden and Estonia are usually built to the highest Finnish-Swedish ice class, 1A Super. Due
Cruiseferries sailing on regular routes between Finland, Sweden and Estonia are usually built to the highest Finnish-Swedish ice class, 1A Super. Due to their high engine power, the cruiseferries do not normally require icebreaker assistance.
When operating alone, pusher Rautaruukki has the same ice class as the integrated tug and barge, 1A Super, but the unpropelled Kalla is downgraded to
When operating alone, pusher Rautaruukki has the same ice class as the integrated tug and barge, 1A Super, but the unpropelled Kalla is downgraded to ice class 3.
Double acting ships capable of independent operation in ice, such as Mastera, could be eligible for the proposed new ice class 1A Super+.
Double acting ships capable of independent operation in ice, such as Mastera, could be eligible for the proposed new ice class 1A Super+.
Polar Class
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Polar Class (PC) refers to the ice class assigned to a ship by a classification society based on the Unified Requirements for Polar Class Ships developed by the International Association of Classification Societies (IACS). Seven Polar Classes are defined in the rules, ranging from PC 1 for year-round operation in all polar waters to PC 7 for summer and autumn operation in thin first-year ice.
The 2012-built South African polar research vessel S. A. Agulhas II is one of the few vessels rated PC 5 or higher.
The 2012-built South African polar research vessel S. A. Agulhas II is one of the few vessels rated PC 5 or higher.
The 2020-built SH Minerva is a small expedition cruise ship with Polar Class 5 rating.
The 2020-built SH Minerva is a small expedition cruise ship with Polar Class 5 rating.
The Finnish LNG-powered icebreaker Polaris, built in 2016, is rated Polar Class 4 with an additional notation "Icebreaker(+)" denoting additional stre
The Finnish LNG-powered icebreaker Polaris, built in 2016, is rated Polar Class 4 with an additional notation "Icebreaker(+)" denoting additional strengthening.
The Polar Class 3 icebreaking research vessel Kronprins Haakon is operated by the Norwegian Polar Institute.
The Polar Class 3 icebreaking research vessel Kronprins Haakon is operated by the Norwegian Polar Institute.