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.
Royal Arctic Line
The three largest ships the "Naja Arctica" (782 Twenty-foot equivalent unit (TEU)), "Nuka Arctica" (782 TEU), and "Mary Arctica" (588 TEU) are principally used for the Aalborg route. The "Irena Arctica" (424 TEU), "Arina Arctica" (283 TEU), and "Pajuttaat" are used within Greenland and have equipment for unloading in cities without harbors. All these container ships are double-hulled and built with high freeboards and the highest ice ratings: the "Mary Arctica" has even been chartered for Antarctic service. The settlement ships "Angaju Ittuk", "Anguteq Ittuk", "Aqqaluk Ittuk", and "Johanna Kristina" are all older and smaller (220–320 m³) and used for supplying the smaller ports. In 2011, the ships had an average on-time rate of 72%.