HMCS Cobalt

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HMCS Cobalt K124 MC-2207.jpg
HMCS Cobalt at Liverpool, Nova Scotia, where she underwent her foc'sle extension refit in 1944.
History
Naval Ensign of the United Kingdom.svgCanada
NameCobalt
Namesake Cobalt, Ontario
Ordered1 February 1940
Builder Port Arthur Shipbuilding Co. Port Arthur
Laid down1 April 1940
Launched17 August 1940
Commissioned25 November 1940
Decommissioned17 June 1945
Identification Pennant number: K124
Honours and
awards		Atlantic, 1941 – 45. [1]
FateSold for mercantile purposes; broken up 1966
General characteristics
Class and type Flower-class corvette (original) [2]
Displacement925 long tons (940 t; 1,036 short tons)
Length205 ft (62.48 m)o/a
Beam33 ft (10.06 m)
Draught11.5 ft (3.51 m)
Propulsion
  • single shaft
  • 2 × fire tube Scotch boilers
  • 1 × 4-cycle triple-expansion reciprocating steam engine
  • 2,750 ihp (2,050 kW)
Speed16 knots (29.6 km/h)
Range3,500 nautical miles (6,482 km) at 12 knots (22.2 km/h)
Complement85
Sensors and
processing systems
  • 1 × SW1C or 2C radar
  • 1 × Type 123A or Type 127DV sonar
Armament

HMCS Cobalt was a Flower-class corvette of the Royal Canadian Navy which took part in convoy escort duties during the Second World War. She served primarily in the Battle of the Atlantic. She was named for Cobalt, Ontario.

Contents

Background

Flower-class corvettes like Cobalt serving with the Royal Canadian Navy during the Second World War were different from earlier and more traditional sail-driven corvettes. [3] [4] [5] The "corvette" designation was created by the French as a class of small warships; the Royal Navy borrowed the term for a period but discontinued its use in 1877. [6] During the hurried preparations for war in the late 1930s, Winston Churchill reactivated the corvette class, needing a name for smaller ships used in an escort capacity, in this case based on a whaling ship design. [7] The generic name "flower" was used to designate the class of these ships, which – in the Royal Navy – were named after flowering plants. [8]

Corvettes commissioned by the Royal Canadian Navy during the Second World War were named after communities for the most part, to better represent the people who took part in building them. This idea was put forth by Admiral Percy W. Nelles. Sponsors were commonly associated with the community for which the ship was named. Royal Navy corvettes were designed as open sea escorts, while Canadian corvettes were developed for coastal auxiliary roles which was exemplified by their minesweeping gear. Eventually the Canadian corvettes would be modified to allow them to perform better on the open seas. [9]

Construction

Cobalt was ordered 1 February 1940 as part of the 1939–1940 Flower-class shipbuilding program from Port Arthur Shipbuilding Co. in Port Arthur, Ontario. She was laid down on 1 April 1940 and launched 17 August later that year. [10] Cobalt was commissioned at Port Arthur on 25 November 1940, however Cobalt was taken to Halifax in advance of completion to beat the St. Lawrence freeze-up, arriving 24 December. [11] In mid-November Cobalt was sent to Liverpool, Nova Scotia for three months' refit. During the second of two other extensive refits at Liverpool from April to 20 July 1944 her fo'c'sle was lengthened.

Wartime service

Cobalt was completed early in January 1941. On 22 January 1941 she took part in the Canadian Navy's first secret trial of diffused lighting camouflage, a technology for concealing ships from submarines at night. [12]

She worked up and joined Halifax Force, but left on 23 May 1941 with the six other corvettes that were the nucleus of the new Newfoundland Escort Force (NEF). For the next six months she operated as an ocean escort between St. John's and Iceland. [13]

HMCS Cobalt leaving Iceland HMCS COBALT leaving Hvalfjord. From HMS Victorious. 16 and 17 November 1941, at Hvalfjord, Iceland. IWM A6403.jpg
HMCS Cobalt leaving Iceland

Following completion of her first refit, Cobalt made two round trips to Derry before being assigned in May 1942 to the Western Local Escort Force (WLEF), with which she was to spend the balance of the war. During her time with WLEF she served with escort groups EG W-6 from June 1943; with W-5 from April 1944; and with W-7 from February 1945. She finished the war with group W-7. [13]

Post-war service

Cobalt was paid off at Sorel, Quebec on 17 June 1945 and subsequently sold for conversion to a whale-catcher, entering service in 1953 as the Dutch Johanna W. Vinke. On 31 December 1961 she suffered a boiler explosion while whaling, and was declared a constructive total loss. She was broken up at Cape Town beginning on 6 June 1963 by South African Metal & Machinery Pty Ltd. [13] [14]

Related Research Articles

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References

  1. ↑ "Battle Honours". Britain's Navy. Retrieved 4 August 2013.
  2. ↑ Lenton, H.T.; Colledge, J.J (1968). British and Dominion Warships of World War II. Doubleday & Company. pp. 201, 212.
  3. ↑ Ossian, Robert. "Complete List of Sailing Vessels". The Pirate King. Retrieved 13 April 2011.
  4. ↑ Fitzsimons, Bernard, ed. (1978). The Illustrated Encyclopedia of 20th Century Weapons & Warfare. Vol. 11. London: Phoebus. pp. 1137–1142.
  5. ↑ Jane's Fighting Ships of World War II . New Jersey: Random House. 1996. p.  68. ISBN   0-517-67963-9.
  6. ↑ Blake, Nicholas; Lawrence, Richard (2005). The Illustrated Companion to Nelson's Navy. Stackpole Books. pp. 39–63. ISBN   0-8117-3275-4.
  7. ↑ Chesneau, Roger; Gardiner, Robert (June 1980). Conway's All the World's Fighting Ships 1922-1946. Naval Institute Press. p. 62. ISBN   0-87021-913-8.
  8. ↑ Milner, Marc (1985). North Atlantic Run. Naval Institute Press. pp. 117–119, 142–145, 158, 175–176, 226, 235, 285–291. ISBN   0-87021-450-0.
  9. ↑ Macpherson, Ken; Milner, Marc (1993). Corvettes of the Royal Canadian Navy 1939–1945. St. Catharines: Vanwell Publishing. ISBN   1-55125-052-7.
  10. ↑ "HMCS Cobalt (K124)". Uboat.net. Retrieved 5 August 2013.
  11. ↑ "Cobalt K-124". Royal Canadian Navy. 11 August 2017. Retrieved 11 February 2020.
  12. ↑ "Naval Museum of Quebec". Diffused Lighting and its use in the Chaleur Bay. Royal Canadian Navy. Retrieved 19 January 2012.[ permanent dead link ]
  13. 1 2 3 Macpherson, Ken; Burgess, John (1981). The ships of Canada's naval forces 1910–1981 : a complete pictorial history of Canadian warships. Toronto: Collins. p. 72. ISBN   0-00-216856-1.
  14. ↑ "Cobalt (6111129)" . Miramar Ship Index . Retrieved 13 July 2016.

Bibliography

  • Macpherson, K.; Burgess, J. (1985). "The Ships of Canada's Naval Forces 1910–1985. A complete pictorial history of Canadian warships. Toronto: Collins. 1985 ISBN   0-00-217469-3.
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