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Ice class. MS Viking XPRS, a ship in Finnish-Swedish ice class 1A Super in Helsinki harbour during wintertime. Ice class refers to a notation assigned by a classification society or a national authority to denote the additional level of strengthening as well as other arrangements that enable a ship to navigate through sea ice.
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 ...
If built, this class of ship will eventually have a complement of 100 per vessel. They are estimated to be capable of carrying fuel and supplies to be self-sufficient for 270 days and be capable of making constant progress through 2.5 metres (8 ft) of ice. [19] Arpatuuq will be classified by Lloyd's Register of Shipping.
Ice navigation vessel or Ice-strengthened vessel is a class of ships specially prepared for independent ice navigation in the waters of the polar seas and for following icebreakers in especially difficult ice conditions. [ 1][ 2] Various registration authorities assign ice classes to vessels based on their technical characteristics. [ 3][ 4 ...
USCGC Bollard breaking light ice. The USCG 65' small harbor tug is a class of fifteen tugs used by the United States Coast Guard for search and rescue, law enforcement, aids-to-navigation work and light icebreaking. The tugs are capable of breaking 18 in (0.46 m) of ice with propulsion ahead and 21 in (0.53 m) of ice backing and ramming. [ 2]
USCGC Northwind (WAG/WAGB-282) was a Wind-class icebreaker, the second United States Coast Guard Cutter of her class to bear the name. She was built to replace USCGC Staten Island which was in Soviet lend-lease service. During her career, Northwind conducted extensive oceanography, hydrography and cartography studies, as well as icebreaking ...
This is a list of icebreakers and other special icebreaking vessels (except cargo ships and tankers) capable of operating independently in ice-covered waters. Ships known to be in service are presented in bold .
Navigation in the channel behind the icebreaker in annual Arctic ice up to 2.0 m (6 ft 7 in) thick in winter-spring and up to 3.2 m (10 ft) in summer-autumn navigation). [1] By design, gas carriers of the Yamalmax class are classified as double acting ships - the bow is adapted for navigation in open water and in thin ice conditions, and the ...