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.
CCGS D'Iberville
In 1972, "D'Iberville" was one of three icebreaking escorts for a convoy of cargo ships travelling to Mokka Fjord and Eureka. This was the largest convoy to travel that far north into Canada's Arctic. In 1976, in conjunction with , "D'Iberville" travelled into the Northwest Passage to aid after the small icebreaker damaged both her propellers. In 1981, "D'Iberville" made her last Arctic voyage. The ship was decommissioned in 1983. The vessel was laid up first at Quebec City, then at Sorel. Renamed "Phillip O'Hara" in 1984 and back to "D'Iberville" in 1988, the icebreaker was sold for scrap in 1989 and broken up at Kaoshiung, Taiwan.