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 .
22-659: Homeported in Seattle, Polar Star operates under the control of Coast Guard Pacific Area and coordinates her operations through the Ice Operations Section of the United States Coast Guard. After Polar Sea was deactivated in 2010, Polar Star became the US's only heavy icebreaker. The Coast Guard's only other icebreaker, USCGC Healy , despite being classified as a "medium icebreaker",
44-463: A tour of duty , a combat vessel returning to port will usually return to its home port . A single home port also makes it easier for family to visit sailors on leave . New Zealand Antarctic Research Programme The New Zealand Antarctic Research Programme (NZARP) was a research programme that operated a permanent research facility in Antarctica from 1959 to 1996. It was created by
66-730: A permanent research station in Antarctica. The NZARP was in charge of maintaining the base. They hired people to act as field safety leaders and assist scientists during research projects. When the DSIR was broken up to form the Crown Research Institutes in 1992, National Institute of Water and Atmospheric Research took over the NZARP. In 1967, the first tetrapod remains in Antarctica were discovered by New Zealander Peter Barrett, his finding eventually lending support to
88-530: A reduced crew of 44 to keep the ship ready for a possible return to the ice. In 2009, the NSF announced that they would end funding for maintaining the ship. The ship was reactivated for overhaul, which took four years and was completed by Seattle's Vigor Industrial shipyard (formerly Todd Pacific shipyard), at a cost of US$ 57 million. Polar Star was back in operation in late 2013, and assigned to Antarctic operations as part of Operation Deep Freeze in early 2014 for
110-472: A scientific research platform with five laboratories, additional space for seven portable laboratories on deck and accommodations for up to 35 scientists. In May and early June 1976 Polar Star conducted ice trials in the Arctic regions during Arctic West Summer (AWS76) operations. The starboard controllable pitch propeller failed, followed up shortly by the same type of failure on the port propeller. Removal of
132-548: Is larger than Polar Star (13,623 LT versus 16,000 LT, respectively). Replacement ships for what is called the Polar Security Cutter program have been ordered for a new generation of USCG icebreakers. In August 1971 the Secretary of Transportation announced awarding of a contract to Lockheed Shipbuilding and Construction Company of Seattle , Washington , "to build the world's most powerful icebreaker for
154-770: The Antarctic , breaking a channel through the fast ice to resupply the McMurdo Station in the Ross Sea and the close quarter ice escorts of Military Sealift Command resupply ships through the channel in support of Operation Deep Freeze , which deliver food, fuel, and other goods to the station annually. Polar Star is the only ship in the United States' fleet capable of breaking the fast ice in McMurdo Sound . Polar Star also delivered inspectors from
176-572: The New Zealand Antarctic Research Programme . In February 1998 Polar Star received a report from the Greewave that they were disabled and adrift off Cape Adare . Arriving on scene the next day Polar Star took the Greewave in tow and proceeded on a 12-day 1,515 mile transit to Lyttelton, New Zealand . This was the first visit by a military vessel of the United States to New Zealand in 13 years. The ship
198-412: The U. S. Antarctic Inspection team to foreign outposts for the purpose of Antarctic Treaty Inspections . Arctic deployments occur regularly, including the annual resupply of Thule Air Base , Greenland , as well as science and power projection based operations referred to as Arctic East Summer (AES), Arctic West Summer (AWS), and Arctic West Winter (AWW). In the 1997–1998 season, the ship supported
220-409: The stern of the ship's hull . In the cruise industry the term "home port" is also often used in reference to the port in which a ship will take on / change over the majority of its passengers while taking on stores, supplies and fuel. In a navy , a ship's home port is the port best suited to provide maintenance and restock weaponry particular to ships of that class and build. On conclusion of
242-742: The Geophysics Division of New Zealand's Department of Scientific and Industrial Research (DSIR), originally based in Wellington . The programme promoted research in geochemistry , zoology , geology , botany , meteorology , and limnology . NZARP began as a proposal by the New Zealand government , in 1953, for a research base in Antarctica. Its mission was to provide support for a variety of scientific fieldwork in Antarctica. Members worked as researchers, assistants, tour guides, operators, and administrators to Scott Base . Ground
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#1732772479025264-666: The US Coast Guard," Polar Star , the first of two Polar-class icebreakers. The ship's three shafts are turned by either a diesel-electric or gas turbine prime mover . Each shaft is connected to a 16-foot (4.9 m) diameter, four-bladed, controllable-pitch propeller . The diesel-electric plant can produce 18,000 shaft horsepower (13 MW), and the gas turbine plant a total of 75,000 shaft horsepower (56 MW). Polar Star ' s shell plating and associated internal support structure are fabricated from steel that has especially good low-temperature strength. The portion of
286-482: The circumnavigation of Antarctica completed in 69 days ferrying U.S. State Department inspectors to 14 scientific research stations, assisting with waterside security during the 1984 Los Angeles Summer Olympics, completing the first solo breakout of McMurdo Sound ( Operation Deep Freeze 1988), seven consecutive Operation Deep Freeze missions between 2014 and 2020, as well as reaching 72 degrees 11 minutes north (the farthest north any US government surface vessel reached in
308-501: The course of its service life, Polar Star steamed in all five oceans, made calls in more than 60 ports across six continents; circumnavigated North America, South America, and Antarctica (likely the first such circumnavigation since 1843 as well as the first to do so completely poleward of 60); rounded Cape Horn, transited the North West Passage, and circumnavigated Earth. Operational highlights include Deep Freeze '83 -
330-632: The first time since 2006. On Christmas 2020, Polar Star reached 72 degrees 11 minutes north, the farthest north any US government surface vessel has reached in the winter. The Arctic West Winter mission included travel in heavy ice in total darkness and joint exercises with Russian aircraft at the US Russian maritime boundary in the Bering Sea . During the deployment Polar Star made port calls in Dutch Harbor and Juneau , Alaska . Over
352-513: The hull designed to break ice is 1.75 inches (44 mm) thick in the bow and stern sections, and 1.25 inches (32 mm) thick amidships. The curved bow allows Polar Star to ride up on the ice, using the ship's weight to break the ice. 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). Later upgrades allowed it to serve as
374-834: The original base. The New Zealand Antarctic Institute also manages other research facilities, in the McMurdo Sound region, such as the Arrival Heights laboratory, which does atmospheric research. A two-storey, 1,800-square-metre (19,000 sq ft) building was constructed in 2005, as a commissioned work by Antarctica New Zealand. This building, known as the Hillary Field Centre, provides an area for cargo receipt and issue, general and refrigerated storages, offices, gym, briefing and training rooms, and field equipment maintenance among many other uses. Because of this new building, New Zealand's science and environmental programs have been able to expand and improve through
396-625: The theory of continental drift . Two years later, in 1969, an NZARP party of six women became the first women to reach the South Pole . Some more of NZARP's discoveries include, Ball Glacier , Atkinson Glacier , Findlay Range , Thomas Heights , and Mount Bradshaw . In 1996, the New Zealand Antarctic Institute—also known as Antarctica New Zealand —took over the work of the NZARP. They now manage all of New Zealand's Antarctic undertakings. Only three buildings remain from
418-577: The wing propellers and opening of the hubs revealed massive failures of the links, link bearings, and drive pins. While the centerline propeller functioned satisfactorily, it too displayed evidence of incipient failure of the link bearings. Propeller issues continued through 1977-1988, leading Coast Guard to invoke the warranty clause of the Lockheed Shipbuilding and Construction Company . Polar Star has supported National Science Foundation and United States Antarctic Program objectives in
440-400: The winter). Since her commissioning on January 17, 1976, Polar Star ' s 24 deployments in support of Operation Deep Freeze are second only to USCGC Glacier (WAGB-4) and her 29 Deep Freeze missions. Home port A vessel 's home port is the port at which it is based, which may not be the same as its port of registry shown on its registration documents and lettered on
462-710: Was broken for Scott Base on 10 January 1957. Assembly of the base began 12 January, conducted by the eight men who first assembled the base in Wellington, and was completed by 20 January. In 1959, the NZARP was established to work with the Ross Dependency Research Committee in the Ross Dependency (New Zealand's claim to a defined sector in Antarctica). In 1962, because of the important research being conducted, Scott Base became
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#1732772479025484-504: Was placed in reserve, or "Commission-Special" status, in 2006 and stationed in Seattle. A 26 February 2008 report by the Congressional Research Service estimated a US$ 400 million cost for a 25-year service life extension refit for Polar Star , a US$ 56 million cost for an 8 to 10-year service life extension refit or US$ 8.2 million cost for a single season service life extension refit. This caretaker status required
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