HMCS Yellowknife

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HMCS Yellowknife 2.jpg
HMCS Yellowknife underway
History
Naval ensign of Canada.svgCanada
NameYellowknife
Namesake Yellowknife, Northwest Territories
Builder Halifax Shipyards Ltd., Halifax, Nova Scotia
Laid down7 November 1996
Launched5 June 1997
Commissioned18 April 1998
Homeport CFB Esquimalt
Identification
StatusActive
General characteristics
Class and type Kingston-class coastal defence vessel
Displacement970 long tons (986 t)
Length55.3 m (181 ft 5 in)
Beam11.3 m (37 ft 1 in)
Draught3.4 m (11 ft 2 in)
Propulsion
  • 4 × Jeumont ANR-53-50 alternators, 4 × 600VAC Wärtsilä UD 23V12 diesel engines, 7.2 MW (9,700 hp)
  • 2 × Jeumont CI 560L motors, 3,000 hp (2,200 kW)
  • 2 × LIPS Z drive azimuth thrusters
Speed15 knots (28 km/h; 17 mph)
Range5,000 nmi (9,300 km; 5,800 mi) at 8 kn (15 km/h; 9.2 mph)
Complement37
Sensors and
processing systems
  • Kelvin Hughes navigation radar (I-band)
  • Kelvin Hughes 6000 surface search radar (E-F band)
  • Global Positioning System
  • AN/SQS-511 towed side scan sonar
  • Remote-control Mine Hunting System (RMHS)
Armament

HMCS Yellowknife is a Kingston-class coastal defence vessel that has served in the Canadian Forces since 1998. Yellowknife is the seventh ship of her class. She is the first vessel to use the designation Yellowknife in the Royal Canadian Navy. [1] The coastal defence vessel is assigned to Maritime Forces Pacific (MARPAC) and is homeported at CFB Esquimalt.

Contents

Design and description

The Kingston class was designed to fill the minesweeper, coastal patrol and reserve training needs of the Canadian Forces, replacing the Bay-class minesweepers, Porte-class gate vessels and Royal Canadian Mounted Police coastal launches in those roles. [2] In order to perform these varied duties the Kingston-class vessels are designed to carry up to three 6.1-metre (20 ft) ISO containers with power hookups on the open deck aft in order to embark mission-specific payloads. [3] The seven module types available for embarkation include four route survey, two mechanical minesweeping and one bottom inspection modules. [2]

The Kingston class displace 970 long tons (986 t) and are 55.3 metres (181 ft 5 in) long overall with a beam 11.3 metres (37 ft 1 in) and a draught of 3.4 metres (11 ft 2 in). [2] The coastal defence vessels are powered by four Jeumont ANR-53-50 alternators coupled to four Wärtsilä UD 23V12 diesel engines creating 7.2 megawatts (9,700 hp). Two LIPS Z-drive azimuth thrusters are driven by two Jeumont CI 560L motors creating 3,000 horsepower (2,200 kW) and the Z drives can be rotated 360°. This gives the ships a maximum speed of 15 knots (28 km/h; 17 mph) and a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph). [4]

The Kingston class is equipped with a Kelvin Hughes navigational radar using the I band and a Kelvin Hughes 6000 surface search radar scanning the E and F bands. The vessels carry an AN/SQS-511 towed side scan sonar for minesweeping and a Remote-control Mine Hunting System (RMHS). The vessels are equipped with one Bofors 40 mm/60 calibre Mk 5C gun and two M2 machine guns. [4] [lower-alpha 1] The 40 mm gun was declared obsolete and removed from the vessels in 2014. Some of them ended up as museum pieces and on display at naval reserve installations across Canada. [5] The Kingston-class coastal defence vessels have a complement of 37. [2]

Service history

Yellowknife's keel was laid down on 7 November 1996 by Halifax Shipyards Ltd. at Halifax, Nova Scotia and was launched on 5 June 1997. The coastal defence vessel transferred to the west coast in January 1998 and was commissioned into the Canadian Forces on 18 April 1998 at Esquimalt, British Columbia and carries the hull number MM 706. [6] On 4 June 1999, the vessel collided with another minesweeper during operations off Victoria, British Columbia while trying to avoid floating obstacles. On 18 June 1999 the vessel was given freedom of the city of Yellowknife, Northwest Territories. [7]

Yellowknife, accompanied by frigates Winnipeg and Calgary and sister ship Brandon, departed in October 2014 to take part in San Francisco Fleet Week and the Task Group Exercise with the US Navy in American coastal waters. [8] Following those exercises, Yellowknife and Brandon deployed as part of Operation Caribbe, completing their tour on 4 December. [9] In June 2016, Calgary, Vancouver, Saskatoon and Yellowknife sailed from Esquimalt to participate in the RIMPAC naval exercise. [10] After reports surfaced of a lost nuclear bomb was discovered off the coast of British Columbia, Yellowknife was sent to investigate and recover the item. Divers from Yellowknife determined the object was not the missing bomb. [11] From August to September 2017, Yellowknife and sister ship Edmonton sailed to the Arctic Ocean to perform surveillance of Canada's northern waters as part of Operation Limpid. They returned to Esquimalt on 5 October. [12]

In June and July 2018, Yellowknife and sister ship Whitehorse were deployed off the coast of Southern California while taking part in RIMPAC 2018. [13] Whitehorse and Yellowknife both deployed to the Pacific as part of Operation Caribbe on 15 March 2019. [14] The two ships returned to Esquimalt on 16 May, having participated in the interception of 2,657 kg (5,858 lb) of cocaine and 25 kg (55 lb) of illicit marijuana. [15]

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References

Notes

  1. ↑ The 60 calibre denotes the length of the gun. This means that the length of the gun barrel is 60 times the bore diameter.

Citations

  1. ↑ "Volume 2, Part 1: Extant Commissioned Ships – HMCS Yellowknife". Official Lineages. National Defence and the Canadian Forces. 7 July 2006. Retrieved 1 October 2014.
  2. 1 2 3 4 Macpherson and Barrie, p. 299
  3. ↑ Saunders (2008), p. 95
  4. 1 2 Saunders (2004), p. 92
  5. ↑ Mallett, Peter (17 October 2018). "Big guns find new life". CFB Esquimalt Lookout. Retrieved 31 October 2018.
  6. ↑ Macpherson and Barrie, p. 304
  7. ↑ Gibson, Dane (4 June 1999). "When Ships Collide". Northern News Service. Retrieved 7 January 2021.
  8. ↑ "HMCS Calgary, Winnipeg, Brandon and Yellowknife set sail for U.S. exercise". Ottawa Citizen. 9 October 2014. Retrieved 12 October 2014.
  9. ↑ Pugliese, David (4 December 2014). "Canadian military concludes annual contribution to Operation CARIBBE 2014". Ottawa Citizen. Retrieved 6 December 2014.
  10. ↑ Petrescu, Sarah (13 June 2016). "Navy ships leave for exercise off California". Times Colonist. Retrieved 14 June 2016.
  11. ↑ "Object found off British Columbia coast not missing nuke". BBC News. 25 November 2016. Retrieved 26 November 2016.
  12. ↑ Watts, Richard (5 October 2017). "Navy vessels return to Esquimalt after deployment to Arctic". Victoria Times-Colonist. Retrieved 21 October 2017.
  13. ↑ Pugliese, David (27 June 2018). "Over 1,000 Canadian military personnel to take part in RIMPAC - exercise to start Wednesday". Ottawa Citizen. Retrieved 26 July 2018.
  14. ↑ Coyne, Todd (15 March 2019). "Esquimalt warships depart to hunt down drug traffickers". CTV News. Retrieved 25 April 2019.
  15. ↑ "Esquimalt ships return home after seizing more than 2.5 tonnes of cocaine". CTV News. 16 May 2019. Retrieved 14 July 2019.

Sources

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