Arktika-class icebreaker
The "Arktika" class is a Russian (former Soviet) class of nuclear-powered icebreakers. Formerly known as "Project 10520 nuclear-powered icebreaker", they were the largest and most powerful icebreakers until the 2016 launch of the ship named Arktika. Ships of the "Arktika" class are owned by the federal government, but were operated by the Murmansk Shipping Company (MSCO) until 2008, when they were transferred to the fully government-owned operator Atomflot. Of the ten civilian nuclear-powered vessels built by Russia (and the Soviet Union), six have been of this type. They are used for escorting merchant ships in the Arctic Ocean north of Siberia as well as for scientific and recreational expeditions to the Arctic.
List of Great Lakes museum and historic ships
is a vessel designed for icebreaking duties on the Great Lakes. "Mackinaw" was home-ported in Cheboygan, Michigan during its active service. Due to "Mackinaw"s age and expensive upkeep, the cutter was decommissioned and replaced with a smaller multipurpose cutter (, which was commissioned in Cheboygan the same day). The old "Mackinaw" moved under its own power on June 21, 2006 from the port of its decommissioning to a permanent berth (at the dock) at the ship's namesake port, Mackinaw City, Michigan, where she now serves as the Icebreaker Mackinaw Maritime Museum.