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HMCS Blairmore

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History
Canada
NameBlairmore
NamesakeBlairmore, Alberta
BuilderPort Arthur Shipbuilding Co, Port Arthur
Laid down2 January 1942
Launched14 May 1942
Commissioned17 November 1942
Decommissioned16 October 1945
IdentificationPennant number: J314
Honours and
awards
Atlantic 1943-45, Normandy 1944 [1]
FateTransferred to Turkish Navy 1958
Turkey
NameBeycoz
Acquired29 March 1958
FateDiscarded 1971
General characteristics
Class and type Bangor-class minesweeper
Displacement672 long tons (683 t)
Length180 ft (54.9 m) oa
Beam28 ft 6 in (8.7 m)
Draught9 ft 9 in (3.0 m)
Propulsion2 Admiralty 3-drum water tube boilers, 2 shafts, vertical triple-expansion reciprocating engines, 2,400 ihp (1,790 kW)
Speed16.5 knots (31 km/h)
Complement83
Armament

HMCS Blairmore (pennant J314) was a Bangor-class minesweeper that served with the Royal Canadian Navy during the Second World War. Entering service in 1942, the ship took part in the Battle of the Atlantic and the invasion of Normandy. Following the war, the ship was laid up until 1958 when the Blairmore was transferred to the Turkish Navy. Renamed Beycoz, the vessel was discarded in 1971.

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Pennant number

Pennant number

In the Royal Navy and other navies of Europe and the Commonwealth of Nations, ships are identified by pennant number. Historically, naval ships flew a flag that identified a flotilla or type of vessel. For example, the Royal Navy used a red burgee for torpedo boats and a pennant with an H for torpedo boat destroyers. Adding a number to the type-identifying flag uniquely identified each ship.

Bangor-class minesweeper

Bangor-class minesweeper

The Bangor-class minesweepers were a class of warships operated by the Royal Navy (RN), Royal Canadian Navy (RCN), Imperial Japanese Navy (IJN), and Royal Indian Navy (RIN) during the Second World War.

Royal Canadian Navy

Royal Canadian Navy

The Royal Canadian Navy is the naval force of Canada. The RCN is one of three environmental commands within the Canadian Armed Forces. As of 2021, the RCN operates 12 frigates, four attack submarines, 12 coastal defence vessels, eight patrol class training vessels, two offshore patrol vessels, and several auxiliary vessels. The RCN consists of 8,570 Regular Force and 4,111 Primary Reserve sailors, supported by 3,800 civilians. Vice-Admiral Angus Topshee is the current commander of the Royal Canadian Navy and chief of the Naval Staff.

World War II

World War II

World War II or the Second World War, often abbreviated as WWII or WW2, was a global conflict that lasted from 1939 to 1945. The vast majority of the world's countries, including all of the great powers, fought as part of two opposing military alliances: the Allies and the Axis. Many participants threw their economic, industrial, and scientific capabilities behind this total war, blurring the distinction between civilian and military resources. Aircraft played a major role, enabling the strategic bombing of population centres and the delivery of the only two nuclear weapons ever used in war.

Battle of the Atlantic

Battle of the Atlantic

The Battle of the Atlantic, the longest continuous military campaign in World War II, ran from 1939 to the defeat of Nazi Germany in 1945, covering a major part of the naval history of World War II. At its core was the Allied naval blockade of Germany, announced the day after the declaration of war, and Germany's subsequent counter-blockade. The campaign peaked from mid-1940 through to the end of 1943.

Design and description

A British design, the Bangor-class minesweepers were smaller than the preceding Halcyon-class minesweepers in British service, but larger than the Fundy class in Canadian service.[2][3] They came in two versions powered by different engines; those with a diesel engines and those with vertical triple-expansion steam engines.[2] Blaimore was of the latter design and was larger than her diesel-engined cousins. The minesweeper was 180 feet (54.9 m) long overall, had a beam of 28 feet 6 inches (8.7 m) and a draught of 9 feet 9 inches (3.0 m).[2][4] Blairmore had a displacement of 672 long tons (683 t). She had a complement of 6 officers and 77 enlisted.[4]

Blairmore had two vertical triple-expansion steam engines, each driving one shaft, using steam provided by two Admiralty three-drum boilers. The engines produced a total of 2,400 indicated horsepower (1,800 kW) and gave a maximum speed of 16.5 knots (30.6 km/h; 19.0 mph). The minesweeper could carry a maximum of 150 long tons (152 t) of fuel oil.[2]

Blairmore was armed with a single quick-firing (QF) 12-pounder (3 in (76 mm)) 12 cwt HA gun mounted forward.[2][5][a] The ship was also fitted with a QF 2-pounder Mark VIII aft and were eventually fitted with single-mounted QF 20 mm Oerlikon guns on the bridge wings.[6] Those ships assigned to convoy duty had two depth charge launchers and four chutes to deploy the 40 depth charges they carried.[2][5]

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Halcyon-class minesweeper

Halcyon-class minesweeper

The Halcyon class was a class of 21 oil-fired minesweepers built for the British Royal Navy between 1933 and 1939. They were given traditional small ship names used historically by the Royal Navy and served during World War II.

Fundy-class minesweeper

Fundy-class minesweeper

The Fundy-class minesweepers were a class of four minesweepers operated by the Royal Canadian Navy during the Second World War. All four ships entered service in 1938 and the class were discarded in 1945, sold for mercantile service. Three ended up sold to Chinese interests, while one remained active in Canada until 1987.

Diesel engine

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 called a compression-ignition engine. This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine or a gas engine.

Length overall

Length overall

Length overall is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth.

Beam (nautical)

Beam (nautical)

The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer extremities of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water.

Draft (hull)

Draft (hull)

The draft or draught of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel). The draught of the vessel is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed. Draft determines the minimum depth of water a ship or boat can safely navigate. The related term air draft is the maximum height of any part of the vessel above the water.

Displacement (ship)

Displacement (ship)

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 weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used.

Knot (unit)

Knot (unit)

The knot is a unit of speed equal to one nautical mile per hour, exactly 1.852 km/h. The ISO standard symbol for the knot is kn. The same symbol is preferred by the Institute of Electrical and Electronics Engineers (IEEE), while kt is also common, especially in aviation, where it is the form recommended by the International Civil Aviation Organization (ICAO). The knot is a non-SI unit. The knot is used in meteorology, and in maritime and air navigation. A vessel travelling at 1 knot along a meridian travels approximately one minute of geographic latitude in one hour.

Fuel oil

Fuel oil

Fuel oil is any of various fractions obtained from the distillation of petroleum. Such oils include distillates and residues. Fuel oils include heavy fuel oil, marine fuel oil (MFO), bunker fuel, furnace oil (FO), gas oil (gasoil), heating oils, diesel fuel and others.

Oerlikon 20 mm cannon

Oerlikon 20 mm cannon

The Oerlikon 20 mm cannon is a series of autocannons, based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I. It was widely produced by Oerlikon Contraves and others, with various models employed by both Allied and Axis forces during World War II. Many versions of the cannon are still used today.

Bridge (nautical)

Bridge (nautical)

The bridge, also known as the pilothouse or wheelhouse, is a room or platform of a ship from which the ship can be commanded. When a ship is under way, the bridge is manned by an officer of the watch aided usually by an able seaman acting as a lookout. During critical maneuvers the captain will be on the bridge, often supported by an officer of the watch, an able seaman on the wheel and sometimes a pilot, if required.

Depth charge

Depth charge

A depth charge is an anti-submarine warfare (ASW) weapon. It is intended to destroy a submarine by being dropped into the water nearby and detonating, subjecting the target to a powerful and destructive hydraulic shock. Most depth charges use high explosive charges and a fuze set to detonate the charge, typically at a specific depth. Depth charges can be dropped by ships, patrol aircraft, and helicopters.

Operational history

The minesweeper was ordered as part of the 1941–1942 construction programme.[5] The ship's keel was laid down on 2 January 1942 by Port Arthur Shipbuilding Co at their yard in Port Arthur, Ontario. Named for a community in Alberta, Blairmore was launched on 14 May 1942. The ship was commissioned on 17 November 1942 at Port Arthur.[7]

After arriving at Halifax, Nova Scotia on 24 December 1942, the minesweeper was assigned to Western Local Escort Force as a convoy escort. In June 1943, the force was re-organized into escort groups and Blairmore joined W-4. The ship served with W-4 until February 1944. That month, the minesweeper was ordered to European waters as part of Canada's contribution to the invasion of Normandy.[7]

Upon arrival in March, Blairmore was assigned to the 31st Minesweeping Flotilla.[8] During the invasion, Blairmore and her fellow minesweepers swept and marked channels through the German minefields leading into the invasion beaches in the American sector.[9] The 31st Minesweeping Flotilla swept channel 3 on 6 June, completing the task unmolested by the Germans.[10] The minesweepers spent the following months clearing the shipping lanes between the United Kingdom and mainland Europe. On 8 October 1944, the 31st Minesweeping Flotilla was sweeping for mines off Le Havre, France when sister ship Mulgrave suffered an explosion. The minesweeper had hit a mine and after damage control efforts saved the ship, Blairmore took the vessel in tow and brought her to Le Havre.[11] In April 1945, the ship sailed to Canada for a refit at Halifax and returned to Plymouth in July. The minesweeper remained in European waters attached to Plymouth Command until 21 September 1945.[7]

After returning to Canada, the minesweeper was paid off at Sydney, Nova Scotia on 16 October 1945. Blairmore was sold to Marine Industries and placed in strategic reserve at Sorel, Quebec in 1946. In July 1951 the minesweeper was reacquired by the Royal Canadian Navy during the Korean War.[7] The vessel was taken to Sydney, Nova Scotia and given the new hull number FSE 193 and re-designated a coastal escort.[7][12] However, the ship never recommissioned and remained in reserve at Sydney until 29 March 1958 when Blairmore was formally transferred to the Turkish Navy.[7][13] Renamed Beycoz by the Turkish Navy, the vessel remained in service until 1971 when it was discarded.[7] The vessel was broken up in Turkey in 1971.[14]

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Keel

Keel

The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. The laying of the keel is often the initial step in the construction of a ship. In the British and American shipbuilding traditions, this event marks the beginning date of a ships construction.

Port Arthur, Ontario

Port Arthur, Ontario

Port Arthur was a city in Northern Ontario, Canada, located on Lake Superior. In January 1970, it amalgamated with Fort William and the townships of Neebing and McIntyre to form the city of Thunder Bay.

Ontario

Ontario

Ontario is one of the thirteen provinces and territories of Canada. Located in Central Canada, it is Canada's most populous province, with 38.3 percent of the country's population, and is the second-largest province by total area. Ontario is Canada's fourth-largest jurisdiction in total area when the territories of the Northwest Territories and Nunavut are included. It is home to the nation's capital city, Ottawa, and the nation's most populous city, Toronto, which is Ontario's provincial capital.

Blairmore, Alberta

Blairmore, Alberta

Blairmore is a community in the Rocky Mountains within the Municipality of Crowsnest Pass in southwest Alberta, Canada. It was formerly incorporated as a town prior to 1979 when it amalgamated with four other municipalities to form Crowsnest Pass. Blairmore is the principal commercial centre of Crowsnest Pass.

Alberta

Alberta

Alberta is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Territories (NWT) to the north, and the U.S. state of Montana to the south. It is one of the only two landlocked provinces in Canada. The eastern part of the province is occupied by the Great Plains, while the western part borders the Rocky Mountains. The province has a predominantly continental climate but experiences quick temperature changes due to air aridity. Seasonal temperature swings are less pronounced in western Alberta due to occasional Chinook winds.

Ship commissioning

Ship commissioning

Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition.

Halifax, Nova Scotia

Halifax, Nova Scotia

Halifax is the capital and largest municipality of the Canadian province of Nova Scotia, and the largest municipality in Atlantic Canada. Halifax is one of Canada's fastest growing municipalities, and as of 2022, it is estimated that the CMA population of Halifax was 480,582, with 348,634 people in its urban area. The regional municipality consists of four former municipalities that were amalgamated in 1996: Halifax, Dartmouth, Bedford, and Halifax County.

Convoy

Convoy

A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used in a non-military sense, for example when driving through remote areas.

Le Havre

Le Havre

Le Havre is a major port city in the Seine-Maritime department in the Normandy region of northern France. It is situated on the right bank of the estuary of the river Seine on the Channel southwest of the Pays de Caux, very close to the Prime Meridian. Le Havre is the most populous commune of Upper Normandy, although the total population of the greater Le Havre conurbation is smaller than that of Rouen. After Reims, it is also the second largest subprefecture in France. The name Le Havre means "the harbour" or "the port". Its inhabitants are known as Havrais or Havraises.

HMCS Mulgrave

HMCS Mulgrave

HMCS Mulgrave was a Bangor-class minesweeper that served with the Royal Canadian Navy during the Second World War. Entering service in 1942, the minesweeper took part in the Battle of the Atlantic and the invasion of Normandy. While sweeping for naval mines off France in 1944, the vessel hit one. The ship was towed back to port where Mulgrave was declared a constructive total loss. Laid up until the end of the war, the minesweeper was broken up in 1947.

Plymouth

Plymouth

Plymouth is a port city and unitary authority in South West England. It is located on the south coast of Devon, aplocal caves, and artefacts dating from the Bronze Age to the Middle Iron Age have been found at Mount Batten, showing that it was one of few principal trading ports of pre-Roman Britannia dominating continental trade with Armorica. An unidentified settlement named TAMARI OSTIA is listed in Ptolemy's Geographia and is presumed to be located in the area of the modern city. An ancient promontory fort was located at Rame Head at the mouth of Plymouth Sound with ancient hillforts located at Lyneham Warren to the east, Boringdon Camp and Maristow Camp to the north.

Marine Industries

Marine Industries

Marine Industries Limited (MIL) was a Canadian ship building, hydro-electric and rail car manufacturing company, in Sorel-Tracy, Quebec, with a shipyard located on the Richelieu river about 1 km from the St. Lawrence River. It employed up to 8,500 people during the World War II support effort.

Source: "HMCS Blairmore", Wikipedia, Wikimedia Foundation, (2023, January 25th), https://en.wikipedia.org/wiki/HMCS_Blairmore.

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References

Notes

  1. ^ "Cwt" is the abbreviation for hundredweight, 20 cwt referring to the weight of the gun.

Citations

  1. ^ "HMCS Blairmore". Ships’ histories. 31 January 2018. Retrieved 20 October 2018.
  2. ^ a b c d e f Chesneau, p. 64
  3. ^ Macpherson and Barrie (2002), p. 167
  4. ^ a b Macpherson and Barrie (2002), p. 180
  5. ^ a b c Macpherson (1997), p. 70
  6. ^ Macpherson (1997), p. 58
  7. ^ a b c d e f g Macpherson and Barrie (2002), p. 190
  8. ^ Schull, p. 233
  9. ^ Schull, pp. 233–234
  10. ^ Schull, pp. 270–273
  11. ^ Douglas et al., A Blue Water Navy, p. 334
  12. ^ Blackman, p. 99
  13. ^ Colledge, p. 401
  14. ^ "Blairmore (6112831)". Miramar Ship Index. Retrieved 5 November 2016.

Sources

  • Blackman, Raymond V.B., ed. (1953). Jane's Fighting Ships 1953–54. London: Sampson Low, Marston & Co. Ltd. OCLC 913556389.
  • Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7.
  • Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.
  • Douglas, W.A.B.; Sarty, Roger; Whitby, Michael (2007). A Blue Water Navy: The Official Operational History of the Royal Canadian Navy in the Second World War, 1943–1945 Volume II, Part II. St. Catharines, Ontario: Vanwell Publishing. ISBN 978-1-55125-069-4.
  • Macpherson, Ken (1997). Minesweepers of the Royal Canadian Navy 1938–1945. St. Catharines, Ontario: Vanwell Publishing Limited. ISBN 0-920277-55-1.
  • Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
  • Schull, Joseph (1961). The Far Distant Ships: An Official Account of Canadian Naval Operations in the Second World War. Ottawa: Queen's Printer. OCLC 19974782.
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