АҚШ Құрама Штаттарының мұз өткеші «Хили» кемесі

Icebreaker of the US Coast Guard

USCGC Healy (WAGB 20) is the United States' largest and most technologically advanced icebreaker as well as the US Coast Guard's largest vessel. She is classified as a medium icebreaker by the Coast Guard. Healy is named in honor of United States Revenue Cutter Service Captain Michael A. Healy. Her keel was laid on 16 September 1996. Healy joined the icebreakers and in their homeport of Seattle, on 10 November 1999. The ship departed New Orleans, on 26 January 2000, performing sea trials off of San Juan, Puerto Rico, and in Baffin Bay, between Canada and Greenland. She arrived in Seattle on 9 August 2000, after transiting the famed Northwest Passage and was placed "In Commission, Active" on 21 August 2000.

Healy is an optimally manned vessel, meaning she has the minimum number of personnel staffed in order to safely navigate. Due to the vast array of missions conducted by Healy, it is vital that crew members are fully qualified on a number of duties. Healy operates two A Frames, one on the aft working deck and one on the starboard side. There are two articulated cranes on the aft working deck, with the starboard side rated to and the port side rated to The aft working deck provides ample space to conduct science and research operations. Healy has a forecastle crane with a load capacity of , and two 04 level cranes with load capacities of 15 tons each. Healy has a Dynamic Positioning System (DPS) that uses her 2200 horsepower Omnithruster Bow Thruster system, which aids in navigation and station keeping during science operations. Her flight deck is capable of landing both of the Coast Guard's helicopter airframes, and attached is a hangar that can house 2 Eurocopter HH 65 Dolphin helicopters. Healy can accommodate 8 ISO vans on the ship, which are used as science labs and workstations. Healy has three small boats on board. One is the 38 feet (12 m) Arctic Survey Boat (ASB), which is on the starboard side. Healy has two 26 feet (8 m) Cutter Boat Large (CBL) Rigid Hull Inflatable Boats (RHIB), one on each side.

Designed to conduct a wide range of research activities, Healy provides more than of scientific laboratory space, numerous electronic sensor systems, oceanographic winches, and accommodations for up to 50 scientists. Healy is also designed to break 4.5 feet (1 m) of ice continuously at or ice 10 feet (3 m) thick when backing and ramming, and can operate in temperatures as low as
As a Coast Guard cutter, Healy is also a platform for supporting other potential missions in the polar regions, including: search and rescue, ship escort, environmental protection, and law enforcement.

29 October 2015: Healy received the Coast Guard Unit Commendation award for exceptionally meritorious service from 24 June to 29 October 2015, during their Arctic West Summer 2015 deployment. Healy traveled over , took over 25,000 water and ice samples from 72 science stations, and became the first unaccompanied U. S. surface vessel to reach the North Pole. She also engaged with the crew of the German icebreaker RV Polarstern while at the North Pole, in support of the international scientific mission Geotraces. Finally, Healy became the first vessel to broadcast a live feed from ice bound Arctic waters, streaming video of a search and rescue exercise to shore based coordinators. 10 April 2012: Healy received the Coast Guard Unit Commendation award for exceptionally meritorious service from 3 January to 5 February 2012, after she escorted a tanker carrying a critical load of fuel through tremendously difficult winter ice conditions to Nome, Alaska. In November 2011, a strong winter storm struck western Alaska, which prevented a vital fuel delivery to Nome. Healy delayed her return home from a six month Arctic deployment in order to escort the Russian flagged tanker MT Renda to Nome. Healy escorted Renda through over of extremely difficult ice conditions and broke out the beset ship time after time. After many days of great exertion, Renda transferred the fuel to Nome, over the course of three days. On 20 January, Healy began the break out for herself and Renda. They emerged from the ice on 29 January 2012, after successful completion of the mission. This was the first ever winter fuel delivery from the water in Western Alaska. 20 January 2010: Healy received the Coast Guard Coast Guard Meritorious Unit Commendation award for meritorious service from 6 August to 16 September 2009, while conducting the Joint U. S.–Canada United Nations Convention on the Law of the Sea Extended Continental Shelf Mapping Expedition. In collaboration with , Healy pushed further north than planned and avoided $2.4 million in future expedition mapping costs. Healy also acquired over of valuable geological samples by conducting dredging operations at depths of up to The rare samples were essential in establishing the origin of the targeted extended continental shelf. 16 July 2008: Healy received the Coast Guard Coast Guard Meritorious Unit Commendation award for meritorious service from April 2007 to July 2008, while conducting science operations in support of national scientific, economic, and political interests. Healy conducted a multi year project in order to evaluate the entire ecosystem of the Bering Sea. Data collected during these missions helped improve the understanding of food webs and biological communities in the Arctic. Through superior mission execution in adverse weather, Healy exceeded expectations significantly. 12 September 2005: Healy reached the North Pole for a second time, accompanied by the Swedish icebreaker Oden (1988 icebreaker). This was Healy second visit to the North Pole, and the voyage was a part of the Arctic East West Summer 2005 project which consisted of three cruises between 1 June and 28 November 2005. 7 May 2003: Healy received the Coast Guard Unit Commendation award for exceptionally meritorious service from January 2003 to April 2003, while conducting Operation Deep Freeze in support of the U. S. Antarctic Program. With less than three weeks' notice, Healy was deployed to Antarctica in support of the critical annual re supply of McMurdo Station. Healy played an instrumental role in coordination with Polar Sea in resupplying the ice station. Healy successfully escorted the freighter MV American Tern and the tanker Richard G. Matthieson. Healy successfully escorted both ships in and out of the ice, and facilitated the delivery of resources to McMurdo Station. 23 January 2002: Healy received the Coast Guard Coast Guard Meritorious Unit Commendation award for meritorious service from 12 June 2001 to 21 December 2001, during the Arctic East 2001 Science Mission. Healy mapped of the Gakkel Ridge, previously the only unmapped undersea ridge in the world. Twelve previously unknown volcanoes and numerous undersea hydrothermal vents were discovered. of rock samples were taken from over 100 deep sea dredges. 6 September 2001: As part of the above mentioned Arctic East Science Mission, Healy, on her three phase maiden voyage, became only the second U. S. surface ship to reach the North Pole, accompanied by the German research icebreaker RV Polarstern. Healy returned to her homeport, Seattle, on 20 December 2001 after 192 days at sea, which were punctuated by two port calls in Tromso Norway to exchange science teams. The second phase of the voyage, in Arctic ice, included testing of an autonomous underwater vehicle (UAV).

2022: On 30 September 2022, the Healy and crew reached the North Pole for her 4th time and her 2nd time unaccompanied. The crew assisted a team of NSF funded scientists as part of the international Synoptic Arctic Survey Program (SAS). 2015: On 5 September, Healy became the first unaccompanied United States surface vessel to reach the North Pole. It was a historic Arctic deployment that displayed the Coast Guard's unique polar capabilities to the public and the world. Between May and October 2015, Healy also tested the Mobile User Objective System (MUOS) high frequency satellite communication system throughout her Arctic Summer West 2015 mission. Successful tests were completed throughout the expedition during the transit to the North Pole. 2014: A main area of focus during Arctic West Summer 2014 (AWS14) was the study of phytoplankton blooms along the Chukchi Sea. Healy also worked in conjunction with the United States Coast Guard Research and Development Center to test Aerostat balloons, UAV, Autonomous Underwater Vehicles (AUV), Remotely Operated Vehicles (ROV), and oil tracking buoys. 2013: Arctic West Summer 2013 (AWS13) consisted of four different missions for Healy, over which more than were covered. The first mission utilized Healys unique over the side science capabilities in order to collect organisms and create an ecological picture of the Hanna Shoal region. The second mission yielded sediment samples from the Mackenzie River Basin through the use of coring devices. For the third mission the Coast Guard Research Development Center, in coordination with the National Oceanic and Atmospheric Administration, deployed numerous equipment for testing and development. The fourth and final mission deployed subsurface moorings and conducted numerous CTD tests to study the Alaskan Boundary Current. A group of researchers from the Naval Submarine Medical Research Laboratory tested their Submarine Team Behaviors Tool with Healys crew in September 2013. They were part of the 50 person science team from the USCG Research and Development Center that evaluated technology for the recovery of "simulated oil trapped in or under ice at the polar ice edge". 2012: In January 2012, Healy escorted the Russian flagged freighter Renda through pack ice to deliver an emergency supply of fuel to Nome, Alaska. Such a winter delivery had never been attempted before because the ice floes are thick during the winter season. The resupply was vital to the city, and was the first ever winter fuel delivery from the water in Western Alaska. Over the course of Arctic West Summer 2012 (AWS12), Healy travelled over and conducted 687 science casts. Healy also added 25% more data to the bathymetric mapping project of the extended continental shelf through multibeam sonar bottom mapping. This data was collected in support of the delineation of the American and Canadian continental shelves. 2011: During Arctic West Summer 2011 (AWS11), Healy collaborated with researchers from NASA to study the refractive properties of sunlight in the Arctic. Healy spent the summer mapping the Extended Continental Shelf in collaboration with CCGS Louis S. St Laurent. A third mission of this patrol studied organic carbon and its levels in the Arctic water column. This data was used to explain bacteria distribution in the water column as well as carbon dioxide and biomass cycles. 2009: A marine biological mission aboard Healy studied the ecosystem of the Bering Sea, specifically the sea ice and its future affects on sea life population. The study included a number of biological focuses which recorded seabird and micro zooplankton populations, as well as assessing phytoplankton, sea ice algae, nitrogen, and sediment. Additionally Oceanographer Evelyn Lessard co led a team to study krill populations to assess how climate change will affect the fisheries.

On 17 August 2006, Lieutenant Jessica Hill and PO2 Stephen Duque, died of unspecified causes during diving operations in the Arctic Ocean. The Coast Guard conducted simultaneous safety and administrative investigations the results of which were made public in January 2007 along with a Final Decision Letter dated 23 August 2007. Initial press reports indicated that the divers were conducting an inspection of the rudder a routine operation at the time of the accident, but later reports stated that the two were doing a cold water training dive near the bow of the ship. The dive was reported to have been planned for a maximum depth of 20 feet (6 m). Lieutenant Hill's father, citing autopsy reports, has indicated that his daughter actually reached a depth of near 200 feet (61 m) in what he described as an out of control descent. The divers were tended by unqualified and poorly instructed personnel on the surface, none of whom were familiar with cold water diving or scuba diving in general. It is not clear why they extended so much line to the divers. By the time the two could be pulled to the surface, gas reserves were empty and neither diver could be revived. On 30 August, Commanding Officer Captain Douglas G. Russell, was temporarily relieved of command by Vice Admiral Charles Wuster, citing a "loss of confidence" in Russell's ability to command. The relief was later made permanent by Coast Guard Commandant Admiral Thad Allen.

A ship of a similar class (if not the same) as the Healy, the Borealis, briefly appears in the game Half Life 2: Episode Two. This ship was originally planned to be a Polar class icebreaker in the original storyline of Half Life 2.