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 Terry Fox
Designed to escort tankers through ice as a heavy icebreaker, "Terry Fox" and her sisters were designed to act as heavy tugs and supply vessels to support offshore oil rig platforms in a hostile environment. Their bows are spoon-shaped, which allows the ship to ride up on the ice, making it easier to break it. "Terry Fox", as a heavy icebreaker, is certified as Arctic Class 4. This allows the vessel to press through ice up to thick. The ship has a displacement of fully loaded, a and a . "Terry Fox" measures long overall with a beam of and a draught of . The ship is equipped with two Raccal Decca ARPA and one Furuno 1411 navigational radar.