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.
List of destroyer classes of the United States Navy
The , the lead ship of the , was the first destroyer named after a living person—World War II Admiral Arleigh Burke. At her commissioning, USS "Arleigh Burke" was extolled as the most powerful surface warship ever built. "Arleigh Burke" is one-third longer and correspondingly heavier than the "Fletcher"-class destroyers of the squadron Burke commanded in World War II; but about the same complement. The "Arleigh Burke"-class destroyers were based around the "Aegis" Combat System, like the larger s. The "Arleigh Burke" class was introduced in four "flights": Flight I, consisting of "Arleigh Burke"; Flight IA composed of 20 ships; Flight II, composed of 7 ships; and Flight IIA, composed of 34 ships. The "Arleigh Burke" class became the U.S. Navy's only active destroyer class when the last member of the "Spruance" class was decommissioned in 2005.