CCGS Louis S. St-Laurent
|Name:||Louis S. St-Laurent|
|Namesake:||Louis St. Laurent|
|Owner:||Government of Canada|
|Operator:||Canadian Coast Guard|
|Port of registry:||Ottawa, Ontario|
|Route:||Atlantic coastline and eastern Arctic|
|Builder:||Canadian Vickers, Montreal, Quebec|
|Launched:||3 June 1966|
|Homeport:||CCG Base St. John's, NL (Newfoundland and Labrador Region)|
|Status:||in active service|
|General characteristics |
|Displacement:||15,324 tons (full)|
|Length:||119.8 m (393.04 ft)|
|Beam:||24.38 m (79.99 ft)|
|Draught:||9.91 m (32.51 ft)|
|Depth:||16.3 m (53.48 ft)|
|Ice class:||Arctic Class 4|
|Installed power:||5 × Krupp MaK 16M453C (5 × 5,880 kW)|
|Speed:||16 knots (30 km/h; 18 mph)|
|Range:||23,000 nautical miles (43,000 km)|
|Boats & landing
|Aircraft carried:||2 × MBB Bo 105 or equivalent|
CCGS Louis S. St-Laurent is a Canadian Coast Guard Heavy Arctic Icebreaker. Louis S. St-Laurent's home port is St. John's, Newfoundland and Labrador and is stationed there with other vessels of the coast guard.
Named after the twelfth Prime Minister of Canada, The Right Honourable Louis St. Laurent, PC CC QC LLD DCL LLL BA. The vessel is classed a "Heavy Arctic Icebreaker" and is the largest icebreaker and flagship of the CCG.
Louis S. St-Laurent is based at CCG Base St. John's in St. John's, Newfoundland. The vessel's current operation tempo consists of summer voyages to Canada's Arctic where she supports the annual Arctic sealift to various coastal communities and carries out multi-disciplinary scientific expeditions. During the winter months, Louis S. St-Laurent sometimes operates in the Gulf of St. Lawrence to aid ships in transiting to Montreal, Quebec, although she usually only serves this assignment during particularly heavy ice years.
From 8–22 September 1969 Louis S. St-Laurent sailed on the SS Manhattan expedition in the Northwest Passage. She was assisted by CCGS John A. Macdonald and the United States Coast Guard vessels USCGC Northwind and USCGC Staten Island 
During 1976 Louis S. St-Laurent, Captain Paul M. Fournier in command, made a partial transit of the Northwest Passage traveling from east to west, through Lancaster Sound, Peel Sound, and Victoria Strait.
In 1979 Louis S. St-Laurent, Captain George Burdock in command, made a full east to west transit of the Northwest Passage. She assisted CCGS Franklin, and circumnavigated North America.
Louis S. St-Laurent underwent an extensive and costly modernization at Halifax Shipyard Ltd. in Halifax, Nova Scotia between 1988–1993 which saw her hull lengthened as well as new propulsion and navigation equipment installed.
The modernization program was controversial as the government of Prime Minister Brian Mulroney had initially proposed building a class of mega icebreakers (the Polar 8 Project) for promoting Canadian sovereignty in territorial waters claimed by Canada; USCGC Polar Sea had made an unauthorized transit of Canada's Northwest Passage in 1985 early in Mulroney's administration, provoking a strong nationalist out-cry across the country. However, budget cuts in the late 1980s saw proposed expansions of the coast guard and armed forces scrapped. In compensation to the coast guard, the government opted to modernize the largest icebreaker in its fleet, Louis S. St-Laurent.
On 22 August 1994 Louis S. St-Laurent and USCGC Polar Sea became the first North American surface vessels to reach the North Pole.
The vessel was originally scheduled to be decommissioned in 2000 however a refit extended the decommissioning date to 2017. In the 26 February 2008 federal budget, the Government of Canada announced it was funding a $721 million "Polar Class Icebreaker" (named John G. Diefenbaker) as a replacement vessel for Louis S. St-Laurent.
At 1:30 a.m. on 2 April 2015, Louis S. St-Laurent, arrived near Burgeo, Newfoundland and Labrador to take the damaged Canadian Coast Guard vessel CCGS Ann Harvey under tow. Ann Harvey, which had run aground near Burgeo, was already being towed by the lifeboat CCGS W.G. George when the icebreaker arrived. Louis S. St-Laurent took over the tow and brought Ann Harvery into Connoire Bay where Royal Canadian Navy divers could inspect the ship.
In 2016 Louis S. St-Laurent was deployed to the Arctic carrying an international team of scientists mapping the sea floor. The first leg of the mission was a voyage to Norway mapping the Atlantic. This was to be followed by a 47-day leg to the North Pole. Travelling with the Swedish icebreaker Oden, Louis S. St-Laurent's mission to the Arctic was the last of three performed in order to define Canada's claim to the Arctic continental shelf. While mapping during transit to the north, the scientists aboard the ship discovered a chain of 25–30 undersea volcanoes off the coast of Greenland.
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Ottawa will put aside $720 million this year to commission the icebreaker, which the government says will have better ice breaking capability than the Louis St. Laurent, considered the workhorse of the Coast Guard.
- Mullowney, Tara (4 March 2008). "Feds fall short: Ottawa must do more, politicians say". Southern Gazette. Archived from the original on 1 January 2013. Retrieved 3 April 2015.
...and $720 million in funding for the Coast Guard will translate into a polar class ice-breaker that will be based in Newfoundland......“This is a bigger boat, so you can add to that.”
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