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{{short description|Icebreaking platform supply vessel}}
{{For|other icebreakers of the same name|Georgiy Sedov (icebreaker)}}
{|{{Infobox ship begin |display title=ital}}
{{Infobox ship image
| Ship image=
| Ship caption=}}
{{Infobox ship career
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| Ship flag=
| Ship name=* ''Antarcticaborg'' (1998–2019)
* ''Georgiy Sedov'' (2019–)<ref name="portnews_oct2019">{{cite web|url=http://portnews.ru/news/284734/|title=В зимнюю навигацию 2019-2020 гг. в Азовском море будет работать дополнительный ледокол
| Ship namesake=[[Georgy Sedov|Georgy Yakovlevich Sedov]]
| Ship owner=* [[Wagenborg Kazakhstan]] (1998–2019)
* [[Rosmorport]] (2019–)
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| Ship ice class=[[Russian Maritime Register of Shipping|RMRS]] UL
| Ship power=2 × [[Wärtsilä]] 6L26 (2 × 1,950 kW)
| Ship propulsion=*2 × [[
*[[Bow thruster]] (150 kW)
| Ship speed=*{{convert|13|kn}} in open water
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=== Power and propulsion ===
''Georgiy Sedov'' has a [[diesel-electric transmission|diesel-electric]] powertrain with two [[Straight-six engine|six-cylinder]] [[Wärtsilä]] 6L26 4-stroke medium-speed diesel engines, each with a maximum continuous rating of {{convert|1950|kW|hp}}, driving [[van Kaick]] DGS generators rated 2,250 kVA at 690 V. According to the power plant principle, the main generators in the forward engine room provide electrical power for all shipboard consumers, including propulsion. For emergency and harbour use, the ship also has [[Valmet]] 612 diesel engines, rated at {{convert|130|kW|hp}}, coupled to 163 kVA alternators. ''Georgiy Sedov'' is propelled by two [[ABB]] Azipod VI1100A electric azimuth thrusters rated at 1,620 kW each.<ref name="abb_reflist">[https://library.e.abb.com/public/98a7ddd74d7ecb3bc1257b09004c14ab/ABB%20Propulsion%20Products%20reference%20list%202013.pdf References - Propulsion Products]
''Georgiy Sedov'' is capable of breaking level ice up to {{convert|60|cm|in}} thick at {{convert|3|kn}} when moving ahead.<ref name="wagenborg" /> However, the bow is designed primarily with good seakeeping and open water characteristics in mind, and in heavy ice conditions the ship is turned around and operated stern first. In such way, her icebreaking capability increases to {{convert|1|m|ft}} of level ice. More importantly, by allowing the Azipod units to mill and crush the ice, ''Georgiy Sedov'' is able to penetrate ice ridges that are thicker than the draught of the ship and sometimes reach the seabed without having to rely on backing and ramming.<ref name="motorship" /><ref name="poac" /> Her service speed in open water is {{convert|13|kn}} and [[bollard pull]] 32 tons.<ref name="wagenborg" />
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=== Antarcticaborg (1998–2019) ===
''Arcticaborg'' and ''Antarcticaborg'' were ordered from Kværner Masa-Yards Helsinki New Shipyard in December 1997 following extensive research and model testing at the company's Arctic Technology Centre, nowadays known as [[Aker Arctic]].<ref name="motorship" /> Constructed in the covered dry dock at the same time, both ships were delivered to Wagenborg Kazakhstan BV, a subsidiary of the Dutch shipping company
Following the discovery of the [[Kashagan Field]] in July 2000, ''Arcticaborg'' and ''Antarcticaborg'' began operating for [[Agip KCO]] in the Northern Caspian Sea where the water depth is only {{convert|4|-|7|m|ft}} and the ice conditions are particularly difficult.<ref name="juurmaa">Juurmaa, K. and Wilkman, G. [http://www.akerarctic.fi/publications/pdf/MombXSupplyOperations.pdf Supply operations in ice conditions] {{webarchive |url=https://web.archive.org/web/20071007134225/http://www.akerarctic.fi/publications/pdf/MombXSupplyOperations.pdf |date=October 7, 2007 }}. Okhotsk Sea & Sea Ice, 2002. {{retrieved | accessdate=2012-02-18}}</ref> In 2000, dedicated ice-strengthened barges, pushed or towed by the icebreaking supply ships, were developed and constructed to allow uninterrupted cargo transportation to and from the platforms year round.<ref>Arpiainen, M. et al. [http://www.akerarctic.fi/publications/pdf/Poac01XModelBarges.pdf Model tests with icebreaking barges for operation in the Northern Caspian Sea] {{webarchive |url=https://web.archive.org/web/20071007134649/http://www.akerarctic.fi/publications/pdf/Poac01XModelBarges.pdf |date=October 7, 2007 }}. POAC 2001. {{retrieved | accessdate=2012-01-19}}</ref>
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{{Reflist}}
[[Category:Icebreakers]]▼
[[Category:1998 ships]]
[[Category:Double acting ships]]
[[Category:Ships built in Helsinki]]
[[Category:Icebreakers of Kazakhstan]]
▲[[Category:Icebreakers of Russia]]
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