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.
Vitus Bering (icebreaker)
"Vitus Bering" is long overall. Her hull has a moulded breadth of and depth of to upper deck. When loaded to a draught of , the deadweight tonnage of the ship is 4,158 tons. The four Wärtsilä diesel generating sets — two twelve-cylinder 12V32 and two six-cylinder 6L32 engines — have a combined output of and provide power for all shipboard consumers, including two 6.5 MW ABB Azipod VI1600 propulsion units. A double acting ship, "Vitus Bering" is designed to be able to break ice both ahead and astern. She is capable of operating in ice up to thick and maintain a speed of in level ice with a thickness of . Her ice class, assigned by the Russian Maritime Register of Shipping, is "Icebreaker6".