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.
Double acting ship
The double acting ship concept has been selected as the main transportation concept for the Yamal LNG project. In July 2013, Daewoo Shipbuilding & Marine Engineering (DSME) won the tender for the construction of sixteen Arc7 ice class LNG carriers and the contract for the first vessel, worth 339.3 billion won ($316.4 million), was signed in March 2014. The Arctic LNG carriers, fitted with three 15MW ABB Azipod propulsion units, are the largest icebreaking vessels in the world with an independent ice-going capability in level ice up to in thickness. The first vessel, "Christophe de Margerie", was launched in January 2016.