Talk:List of icebreakers

question...

It is unclear to me whether to list the Vidar Viking, and her two sister ships, under Norway or Sweden. Built, owned and operated in Norway, registered in Sweden. Go figure. Geo Swan (talk) 00:33, 2 February 2009 (UTC)

rough work

This file lists some other Baltic icebreakers: http://www.bsis.eisdienst.de/material/Icebreakerservice.pdf

Estonia	EVA-316
Estonia	Tarmo
Germany	Arkona
Germany	Gormitz
Latvia	Varma
Russia	Semyan Deznev
Russia	Ivan Kruzenstern
Russia	Mudjug
Russia	Kapitan Zarubin
Russia	Kapitan Izmailow
Russia	Sankt Petersburg
Russia	Ermak
Russia	Moskva
Russia	Tor
Russia	Karu
Russia	Kapitan Sorokin
Sweden	Frej
Sweden	Ymer
Sweden	Atle
Sweden	Ale
Sweden	Dynan
Sweden	Scandica
Sweden	Baltica

Cleanup

I think we should remove ferries etc. from the list because this is a list of icebreakers, not ice-strengthened ships in general. Double acting ships etc. could be an exception, but in the end they are cargo ships capable of operating independently in ice, not actual icebreakers. Tupsumato (talk) 08:34, 26 July 2011 (UTC)

Removed the ferries. Tupsumato (talk) 19:55, 19 September 2011 (UTC)

Heavy ice

Equipment_of_the_Canadian_Coast_Guard#Vessels:_ships_and_small_boats says: Large powerful icebreaker approximately 130 metres long and is capable of sustained operations in the Canadian Arctic with minimal support, for the period of early June to mid-November, and for escort operation in the Gulf of St. Lawrence and East Coast of Newfoundland in the winter.

Did we swipe this definition from somewhere or just make it up? And does it apply to just can guard or world wide? Hcobb (talk) 05:23, 6 December 2011 (UTC)

There is no worldwide classification for different types of icebreakers, so if such definition exists for the Canadian Coast Guard vessels, it's either purely Canadian or done together with the United States. Tupsumato (talk) 10:43, 6 December 2011 (UTC)

The definitions for the ship types comes from Canadian Coast Guard Fleet Order 103.00 Annex A Definition of Vessel Classes and Naming Critera and matches what is used on the CCG website for vessel types. Thread1972 (talk) 17:20, 26 April 2012 (UTC)

How about adding a link to Ice class? Hcobb (talk) 14:22, 6 December 2011 (UTC)

When icebreakers are divided to classes (heavy, light, polar, arctic etc.), the division is usually based on the size (length, displacement), power and general operational capability of the vessels (as described in the quoted sentence), not their ice class, which mainly affects to the structural design (strength) of the vessel and is usually dictated by rules set by the ship's classification society instead of the actual icebreaking performance of the vessel (it's possible to construct a vessel which has a very high ice class but is not capable of operating in difficult ice conditions due to other limitations).

Thus a link to the ice class article (which needs rewriting) could be misleading. I'd rather try to find out how the Canadian icebreakers are classified into heavy, medium and light icebreakers. Tupsumato (talk) 14:39, 6 December 2011 (UTC)

The USCG keeps saying that the Healy is their largest icebreaker and a medium class icebreaker while the two smaller ships are their heavy class icebreakers. So listing Healy as a Heavy Icebreaker is our own invention. Hcobb (talk) 23:32, 1 March 2012 (UTC)

Do we even need that kind of classification in the article? After all, there are not that many USCG icebreakers, so they would all fit under a single heading. Tupsumato (talk) 03:40, 2 March 2012 (UTC)

List format

I've been adding some ships and details to this list as well as removing some ships that I don't consider icebreakers. It's still far from complete, of course.

Any ideas of improving the list format, or other comments? Tupsumato (talk) 01:53, 6 November 2012 (UTC)

Maryland icebreakers

I found a good list of vessels in the US state of Maryland that perform ice-breaking operations, but not sure if they would be considered ice breakers for the purpose of this list. http://www.dnr.state.md.us/boating/ice_breaking.asp — Preceding unsigned comment added by 42.98.62.34 (talk) 02:30, 7 January 2014 (UTC)

Wouldn't call those ships icebreakers. There are hundreds if not thousands of vessels of that size, power and icebreaking capability in service around the world. Tupsumato (talk) 02:43, 7 January 2014 (UTC)

Ice class

It would be interesting to also see the ice class in front of every ship name. — Preceding unsigned comment added by 84.126.39.243 (talk) 12:42, 9 December 2014 (UTC)

Unfortunately there are quite many icebreakers that do not have an "ice class". Adding any technical data would probably mean that the list would have to be converted into tabular form. Tupsumato (talk) 13:58, 11 December 2014 (UTC)

US Icebreakers

NBC aired a program about icebreakers and gave information that the US had only two ships, with the laying up of the USCGC Polar Sea (WAGB-11) (here), the USCGC Polar Star (WAGB-10) and the medium USCGC Healy (WAGB-20). The List of icebreakers article also contains USCGC Mackinaw (WLBB-30) and there is USCGC Alder (WLB-216). The Alder is a multi-mission vessel, that include ice-breaking so I can see not including it, but USCGC Mackinaw (WLBB-30) is a heavy class icebreaker stationed on the Great Lakes. Otr500 (talk) 04:04, 16 September 2015 (UTC)

It is sometimes difficult to decide whether or not to include multi-mission ships and tugboats with some ice-going capability to the list of icebreakers because the world is full of them and the list would bloat, but the USCGC Mackinaw's project name was "Great Lakes Icebreaker". While she's modest-sized, I consider her to be a "real" icebreaker (albeit not "heavy"). Also, as far as I know, she's the only ship in the western hemisphere with icebreaking-rated (VI1300A) Azipod propulsion units. However, because she's not that big and is generally referred to as a buoy tender, she's often not mentioned in such TV programs. Tupsumato (talk) 05:14, 16 September 2015 (UTC)

I can understand that. With only 2 the US is sure behind. One would think that propulsion would be the future. Look at the Gulf oil spill and having to send vacuum trucks and frac tanks out on barges. One would think we would at least have 3 ships capable of spill recovery or that someone would have one or more around the US. I guess it will take a super tanker rupture and the ensuing catastrophic results to really wake people up. I hope it never happens.

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