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.
Heidi Anneli Hautala is a Finnish politician and Member of the European Parliament (MEP) from Finland. She is a member of the Green League, part of the European Green Party.
MSV Fennica is a Finnish multipurpose icebreaker and offshore support vessel. Built in 1993 by Finnyards in Rauma, Finland and operated by Arctia Offshore, she was the first Finnish icebreaker designed to be used as an escort icebreaker in the Baltic Sea during the winter months and in offshore construction projects during the open water season. Fennica has an identical sister ship, Nordica, built in 1994.
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. Some ice classes also have requirements for the ice-going performance of the vessel.
Magadan is a Russian icebreaker and the second 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 Dikson.
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.
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.
A double acting ship is a type of icebreaking ship designed to travel forwards in open water and thin ice, but turn around and proceed astern (backwards) in heavy ice conditions. In this way, the ship can operate independently in severe ice conditions without icebreaker assistance but retain better open water performance than traditional icebreaking vessels.
Kontio is a Finnish state-owned icebreaker. Built by Wärtsilä Helsinki shipyard in 1987 as a replacement for the aging Karhu-class icebreakers, she and her sister ship Otso were the first Finnish post-war icebreaker to be built without bow propellers.
Arctech Helsinki Shipyard was a Finnish shipbuilding company that focused primarily on icebreakers and other icegoing vessels for arctic conditions.
MSV Botnica is a multipurpose offshore support vessel and icebreaker built by Finnyards in Rauma, Finland, in 1998. She was the newest and technically most advanced state-owned icebreaker of Finland until 2012, when she was sold to the Port of Tallinn for 50 million euro. Botnica is used as an escort icebreaker in the Baltic Sea during the winter months, but carries out subsea and offshore construction works worldwide during the open water season.
MSV Nordica is a Finnish multipurpose icebreaker and offshore support vessel. Built in 1994 by Finnyards in Rauma, Finland, and operated by Arctia Offshore, she and her sister ship Fennica were the first Finnish icebreakers designed to be used as escort icebreakers in the Baltic Sea during the winter months and in offshore construction projects during the open water season.
Voima is a Finnish state-owned icebreaker. Built by Wärtsilä Hietalahti shipyard in Helsinki in 1954, she was the first icebreaker in the world to be equipped with two bow propellers and generated widespread publicity that helped the Finnish shipbuilding industry to become the world leader in icebreaker design.
Otso is a Finnish state-owned icebreaker. Built by Wärtsilä Helsinki shipyard in 1986 to replace the aging Karhu-class icebreakers, she was the first Finnish post-war icebreaker to be built without bow propellers. Otso has an identical sister ship, Kontio, which was delivered in 1987.
Baltika is a Russian icebreaker built by Arctech Helsinki Shipyard in Helsinki, Finland. She is the first ship ever built with an asymmetric hull that allows her to operate not only ahead and astern, but also obliquely (sideways) with a large angle of attack. In this way, the relatively small oblique icebreaker is capable of opening a wide channel in ice for large merchant ships.
Polaris is a Finnish icebreaker. Built in 2016 by Arctech Helsinki Shipyard, she is the most powerful icebreaker ever to fly the Finnish flag and the first icebreaker in the world to feature environmentally friendly dual-fuel engines capable of using both low-sulfur marine diesel oil (LSMDO) and liquefied natural gas (LNG). Polaris was initially ordered by the Finnish Transport Agency, but the ownership was transferred to the state-owned icebreaker operator Arctia after delivery.
Novorossiysk is a Russian Project 21900M diesel-electric icebreaker. She was built by Vyborg Shipyard in Russia and delivered to Rosmorport in 2016.
Vladivostok is a Russian diesel-electric icebreaker and the lead ship of Project 21900M icebreakers. She was built by Vyborg Shipyard in Russia and delivered to Rosmorport in 2015.
Mudyug is a Russian icebreaker and the lead ship of a series of three subarctic icebreakers built at Wärtsilä Helsinki shipyard in Finland in 1982–1983. The vessel's non-rebuilt sister ships are Magadan and Dikson.
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.
