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As of 2017, the ice classes are divided to non-Arctic, Arctic and icebreaker classes. The ice class notation is followed by a number which denotes the level of ice strengthening: Ice1 to Ice3 for non-Arctic ships, Arc4 to Arc9 for Arctic ships, and Icebreaker6 to Icebreaker9 for icebreakers. These ice classes can be assigned in parallel with ...
Unlike the tankers, the Arc7 ice class ship was designed to have excellent icebreaking capability, 2 knots in level ice with a thickness of 1.5 meters, both ahead and astern. The ship, Norilskiy Nickel , was delivered from Hietalahti shipyard in 2006 and performed beyond expectations during ice trials in the Yenisei Gulf . [ 18 ]
Polar-class icebreakers USCGC Polar Star (WAGB-10), USCGC Polar Sea (WAGB-11) are heavy icebreakers operated by the United States Coast Guard (USCG). These cutters, specifically designed for icebreaking, have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness of their icebreaking.
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Arpatuuq is designed to break level ice with a thickness of 2.5 metres (8.2 ft) and with a 30-centimetre (12 in) snow cover at over 3 knots. In terms of icebreaking capability, this ranks her just below the largest Russian nuclear-powered icebreakers.
Image credits: Bored Panda #2 Dave Grohl Fathered A Baby Girl Outside Of His Marriage. Lead singer of the Foo Fighters Dave Grohl isn’t trying to hide his truth. Back in September, the musician ...
The 2012-built South African polar research vessel S. A. Agulhas II is one of the few vessels rated PC 5 or higher.. 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).
The Atle class comprises five icebreakers built for the Swedish and Finnish Transport Agency. The two Finnish ships, Urho and Sisu, are sometimes considered a separate class, but all are operationally identical. [1] The ships were built by Wärtsilä Helsinki Shipyard in Finland and entered service in the mid to late 1970s. [1]