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.
Moskva (1959 icebreaker)
"Moskva" was long overall and at the waterline. At the widest point of the hull, the vessel had a beam of , but due to the sloping sides the maximum beam at waterline was slightly less, . At design waterline, the icebreaker drew of water and had a displacement of 13,290 tonnes. However, the maximum draught of the vessel was , corresponding to a maximum displacement of 15,360 tonnes. "Moskva" was the largest non-nuclear icebreaker in the world at the time of the delivery, having almost twice the displacement of the largest western icebreakers.