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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.
The Polar Security Cutters will be the largest icebreakers ever commissioned by the United States Coast Guard and will temporarily be the largest coast guard vessel in the world. With an overall length of 460 feet (140 m), beam of 88 feet (27 m), and a full load displacement of 22,900 long tons (23,300 t), [ 27 ] they will be bigger, wider and ...
USCGC Polar Star (WAGB-10) is a United States Coast Guard heavy icebreaker.Commissioned in 1976, the ship was built by Lockheed Shipbuilding and Construction Company of Seattle, Washington along with sister ship, USCGC Polar Sea.
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] She is homeported in Seattle, Washington, and was commissioned in 1999. On 6 September 2001 Healy visited the North Pole for the ...
28.1 United States Coast Guard. ... (1982–2012; transferred to the China Coast Guard) Type 272 icebreaker. Haibing 722 (海冰722, "Sea Ice 722") (2016–)
USCGC Polar Sea (WAGB-11) is a United States Coast Guard heavy icebreaker.Commissioned on 23 February 1977, the ship was built by Lockheed Shipbuilding and Construction Company of Seattle along with her sister ship, Polar Star.
USCGC Mackinaw (WLBB-30) is a 240-foot (73 m) multi-purpose vessel with a primary mission as a heavy icebreaker specifically built for operations on the North American Great Lakes for the United States Coast Guard. [3] IMO number: 9271054.
The construction of the new icebreaker and Shell's Arctic drilling operation off Alaska raised concerns about the ability of the United States Coast Guard to operate in ice-infested waters since at the time the Coast Guard had only one operational icebreaker, USCGC Healy. [18]