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USCGC Healy at right breaks ice around the Russian-flagged tanker Renda, 250 miles (400 km) south of Nome, Alaska.. An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters, and provide safe waterways for other boats and ships.
This is a list of icebreakers and other special icebreaking vessels (except cargo ships and tankers) capable of operating independently in ice-covered waters. Ships known to be in service are presented in bold. [1] [2
Polar-class icebreakers USCGC Polar Star (WAGB-10), USCGC Polar Sea (WAGB-11) are heavy icebreakers operated by the United States Coast Guard (USCG). These cutters, specifically designed for icebreaking, have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness of their icebreaking.
Project 22220, also known through the Russian type size series designation LK-60Ya, [note 1] is a series of Russian nuclear-powered icebreakers.The lead ship of the class, Arktika, was delivered in 2020 and surpassed the preceding Soviet-built series of nuclear-powered icebreakers as the largest and most powerful icebreaker in the world.
The curved bow allows Polar Star to ride up on the ice, using the ship's weight to break the ice. [4] The 13,000-ton (13,200-metric ton) Polar Star is able to break through ice up to 21 feet (6.4 m) thick by backing and ramming, and can steam continuously through 6 feet (1.8 m) of ice at 3 knots (5.6 km/h). [4]
USCGC Healy (WAGB-20) is the United States' largest and most technologically advanced icebreaker as well as the US Coast Guard's largest vessel. [1] She is classified as a medium icebreaker by the Coast Guard. [1]
Initially, the ships of the Wind-class carried the designation of either WAG for Coast Guard, Auxiliary, General, or, (the U.S. Navy) AGB for Auxiliary, General, Breaker. In 1949 all U.S. Coast Guard WAGs were redesignated WAGBs for Coast Guard, Auxiliary, General, Breaker. During 1965 and 1966, all U.S. Navy icebreakers were transferred to the ...
Yamal can break ice while making way either forwards or backwards. Yamal is one of the Russian Arktika family of icebreakers, the most powerful icebreakers in the world. These ships must cruise in cold water to cool their reactors [failed verification], so they cannot pass through the tropics to undertake voyages in the Southern hemisphere. [3]