CCGS ''Tanu'' is a fisheries patrol vessel in service with the

Canadian Coast Guard The Canadian Coast Guard (CCG; french: links=no, Garde côtière canadienne, GCC) is the coast guard of Canada. Formed in 1962, the coast guard is tasked with marine search and rescue (SAR), communication, navigation, and transportation issues in ...

. The ship was constructed in 1968 by

Yarrows Yarrow Shipbuilders Limited (YSL), often styled as simply Yarrows, was a major shipbuilding firm based in the Scotstoun district of Glasgow on the River Clyde. It is now part of BAE Systems Surface Ships, owned by BAE Systems, which has also ...

at their yard in

Esquimalt The Township of Esquimalt is a municipality at the southern tip of Vancouver Island, in British Columbia, Canada. It is bordered to the east by the provincial capital, Victoria, to the south by the Strait of Juan de Fuca, to the west by Esq ...

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include ...

and entered service the same year. Home ported at

Patricia Bay Patricia Bay ("Pat Bay" to locals) is a body of salt water that extends east from Saanich Inlet and forms part of the shoreline of North Saanich, British Columbia. It lies due west of Victoria International Airport. A municipal park covers most o ...

, British Columbia, the ship is primarily used to carry out fisheries patrols and search and rescue missions along Canada's

Pacific coast Pacific coast may be used to reference any coastline that borders the Pacific Ocean. Geography Americas Countries on the western side of the Americas have a Pacific coast as their western or southwestern border, except for Panama, where the P ...

Description

''Tanu'' was the third of three vessels designed for fisheries patrol use on Canada's Pacific coast. ''Tanu'' had two near-

sister ship A sister ship is a ship of the same class or of virtually identical design to another ship. Such vessels share a nearly identical hull and superstructure layout, similar size, and roughly comparable features and equipment. They often share a ...

s, and all designed for fisheries patrols but differed slightly in layout. ''Tanu'' has a

full load displacement The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into w ...

of , a

gross tonnage Gross tonnage (GT, G.T. or gt) is a nonlinear measure of a ship's overall internal volume. Gross tonnage is different from gross register tonnage. Neither gross tonnage nor gross register tonnage should be confused with measures of mass or weig ...

(GT) of 753 and net tonnage (NT) of 203. ''Tanu'' is long with a

beam Beam may refer to: Streams of particles or energy * Light beam, or beam of light, a directional projection of light energy ** Laser beam * Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized g ...

of and a draught of . The ship is powered by two

Fairbanks Morse Fairbanks, Morse and Company was an American manufacturing company in the late 19th and early 20th century. Originally a weighing scale manufacturer, it later diversified into pumps, engines, windmills, coffee grinders, radios, farm tractors, fee ...

-38D8 geared

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...

s driving one

controllable pitch propeller In marine propulsion, a variable-pitch propeller is a type of propeller with blades that can be rotated around their long axis to change the blade pitch. Reversible propellers—those where the pitch can be set to negative values—can also ...

and bow and stern thrusters.. The machinery is rated at and gives the vessel a maximum speed of . ''Tanu'' has capacity for of

diesel fuel Diesel fuel , also called diesel oil, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a result of compression of the inlet air and ...

which gives the ship a range of at and an endurance of 22 days. The vessel is also equipped with three Caterpillar C9 generators and one Perkins 2430 emergency generator. ''Tanu'' has a complement of 15 composed of 6 officers and 9 crew, with berths for an additional 16. The vessel can be equipped with two 12.7 mm machine guns.

Service history

''Tanu'' was constructed by

with the

yard number __NOTOC__ M ...

324 at their yard in

and launched in 1968. The ship was completed in September 1968 and entered service that same year. The vessel is

registered Registered may refer to: * Registered mail, letters, packets or other postal documents considered valuable and in need of a chain of custody * Registered trademark symbol, symbol ® that provides notice that the preceding is a trademark or service ...

Ottawa Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...

and is homeported at the

base in

, British Columbia. The vessel is primarily tasked with performing fisheries patrols on the Canadian Pacific coast. In October 2010, ''Tanu'' underwent a major refit performed by Allied Shipbuilders of

North Vancouver North Vancouver may refer to: *North Vancouver (city), a city in British Columbia, Canada * North Vancouver (district municipality), a district municipality in British Columbia, Canada * North Vancouver (electoral district), a federal electoral di ...

, British Columbia that upgraded the two main engines to decrease emissions, installed three new generators to modernize the electrical generating system, along with new sewage treatment plant, navigation and communication equipment, galley and hospital. The vessel returned to active service in March 2011. In April 2018, ''Tanu'' was among three Canadian Coast Guard vessels that responded to the distress call of the fishing vessel ''Western Commander'' in the

Hecate Strait , image = HecateStrait(PittIsland).JPG , image_size = 260px , alt = , caption = Hecate Strait and Pitt Island , image_bathymetry = Loc-QCS-Hecate-Dixon.png , alt_bathymetry = , captio ...

. Three of the crew were rescued, with a fourth dying of a heart attack during the event. The 75-year old fishing vessel which had been listing to starboard upon the Coast Guard's arrival, later sank. In July 2018, ''Tanu'' was among the Canadian Coast Guard vessels tasked with performing the largest survey of marine mammal populations in British Columbia waters. ''Tanu'' was assigned to survey Hecate Strait,

Johnstone Strait , image = Pacific Ranges over Johnstone Strait.jpg , image_size = 250px , alt = , caption = Johnstone Strait backdropped by the Vancouver Island Ranges , image_bathymetry = Carte baie Knight ...

, the

Strait of Georgia The Strait of Georgia (french: Détroit de Géorgie) or the Georgia Strait is an arm of the Salish Sea between Vancouver Island and the extreme southwestern mainland coast of British Columbia, Canada and the extreme northwestern mainland coast ...

and into

Juan de Fuca Strait The Strait of Juan de Fuca (officially named Juan de Fuca Strait in Canada) is a body of water about long that is the Salish Sea's outlet to the Pacific Ocean. The international boundary between Canada and the United States runs down the centre ...

Notes

Citations

Sources

* * * * {{DEFAULTSORT:Tanu, CCGS Ships built in British Columbia Patrol vessels of the Canadian Coast Guard 1968 ships