An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters, and provide safe waterways for other boats and ships. Although the term usually refers to ice-breaking ships, it may also refer to smaller vessels, such as the icebreaking boats that were once used on the canals of the United Kingdom.
A nuclear-powered icebreaker is an icebreaker with an onboard nuclear power plant that produces power for the vessel's propulsion system. Although more expensive to operate, nuclear-powered icebreakers provide a number of advantages over their diesel-powered counterparts, especially along the Northern Sea Route where heavy power demand associated with icebreaking, limited refueling infrastructure along the Siberian coast, and endurance required make diesel-powered icebreaker operations challenging. As of 2023, Russia is the only country that builds and operates nuclear-powered icebreakers, having built a number of such vessels to aid shipping along the Northern Sea Route and Russian arctic outposts since the Soviet era.
Oden is a large Swedish icebreaker, built in 1988 for the Swedish Maritime Administration. It is named after the Norse god Odin. First built to clear a passage through the ice of the Gulf of Bothnia for cargo ships, it was later modified to serve as a research vessel. Equipped with its own helicopter and manned by 15 crew members it has ample capacity to carry laboratory equipment and 80 passengers, functioning independently in harsh Polar ice packs of the Arctic and Antarctic seas. It was the first non-nuclear surface vessel to reach the North Pole, together with the German research icebreaker Polarstern. It has participated in several scientific expeditions in Arctic and Antarctica.
MV Captain Kurbatskiy was a Russian SA-15 type cargo ship originally known as Nizhneyansk (Нижнеянск) after a port of the same name. The ship was delivered from Valmet Vuosaari shipyard in 1983 as the second ship of a series of 19 icebreaking multipurpose arctic freighters built by Valmet and Wärtsilä, another Finnish shipbuilder, for the Soviet Union for year-round service in the Northern Sea Route. These ships, designed to be capable of independent operation in arctic ice conditions, were of extremely robust design and had strengthened hulls resembling those of polar icebreakers.
USS Glacier (AGB-4) was a U.S. Navy, then U.S. Coast Guard icebreaker which served in the first through fifteenth Operation Deep Freeze expeditions. Glacier was the first icebreaker to make her way through the frozen Bellingshausen Sea, and most of the topography in the area is named for her crew members. When built, Glacier had the largest capacity single armature DC motors ever installed on a ship. Glacier was capable of breaking ice up to 20 feet (6.1 m) thick, and of continuous breaking of 4-foot (1.2 m) thick ice at 3 knots.
USS Burton Island (AG-88) was a United States Navy Wind-class icebreaker that was later recommissioned in the United States Coast Guard as the USCGC Burton Island (WAGB-283). She was named after an island near the coast of Delaware.
Xue Long is a Chinese icebreaking research vessel. Built in 1993 at Kherson Shipyard in Ukraine, she was converted from an Arctic cargo ship to a polar research and re-supply vessel by Hudong–Zhonghua Shipbuilding of Shanghai by the mid-1990s. The vessel was extensively upgraded in 2007 and 2013.
CCGS Arpatuuq is a future Canadian Coast Guard icebreaker that will be built under the Polar Icebreaker Project as part of the National Shipbuilding Strategy. The ship was initially expected to join the fleet by 2017 but has been significantly delayed and is now expected by 2030.
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.
Quark Expeditions is a travel company that offers polar region expeditions aboard expedition ships and icebreakers.
Aker Arctic Technology Oy is a Finnish engineering company that operates an ice model test basin in Helsinki. In addition to ship model testing, the company offers various design, engineering and consulting services related to icebreakers, other icegoing vessels and arctic offshore projects as well as full scale trials, field expeditions and training for icy conditions. Formerly the arctic research centre of Wärtsilä and later Masa-Yards, Aker Arctic was established on 30 December 2004 as an independent company with Finnish Industry Investment Ltd, ABB and Aker Solutions as its current shareholders.
Ponant is a French cruise ship operator. It was founded in April 1988 by Philippe Videau, Jean-Emmanuel Sauvé, and other officers of the French Merchant Navy and launched the first French cruise ship. The company operates eleven ships, all of which operate under the French flag.
Poseidon Expeditions is a tour operator company that provides expedition cruises to the North Pole and the Russian High Arctic aboard icebreakers and ice-strengthened ships. The company started in 1999.
L'Astrolabe is a French icebreaker that is used to bring personnel and supplies to the Dumont d'Urville Station in Antarctica. The vessel, built by Chantiers Piriou and delivered in September 2017, replaced the 1986-built vessel of the same name.
RRS Sir David Attenborough is a research vessel owned by the Natural Environment Research Council and operated by the British Antarctic Survey for the purposes of both research and logistic support. The ship replaces a pair of existing vessels, RRS James Clark Ross and RRS Ernest Shackleton. The vessel is named after broadcaster and naturalist Sir David Attenborough.
RV Kronprins Haakon is a Norwegian icebreaking polar research vessel owned by the Norwegian Polar Institute. The shiptime use is divided between the main users, the University of Tromsø (50%), Norwegian Polar Institute (30%) and Norwegian Institute of Marine Research (20%). She was built at Fincantieri shipyard in Genova, Italy, and delivered in 2018.
MV Xue Long 2 is a Chinese icebreaking research vessel that entered service in 2019. She follows the naming of MV Xue Long, China's first polar research vessel.
Dikson is a Russian icebreaker and the final vessel in a series of three subarctic icebreakers built at Wärtsilä Helsinki shipyard in Finland in 1982–1983. The vessel's sister ships are Mudyug and Magadan.
Le Bellot is the fifth ship of the Ponant Explorers class of cruise ships operated by Ponant. Each member of the class has been allocated the name of a famous French explorer, and Le Bellot is named after Joseph René Bellot, a French naval officer and Arctic explorer.
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