HMCS Thunder (MCB 161)

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History
Naval Ensign of the United Kingdom.svgNaval ensign of Canada.svgCanada
NameThunder
Namesake Thunder Bay
Builder Port Arthur Shipbuilding Co., Port Arthur
Laid down1 September 1955
Launched27 October 1956
Commissioned3 March 1957
Decommissioned22 August 1997
IdentificationMCB 161
Honours and
awards		Atlantic 1941–44, Normandy 1944, English Channel 1944–45 [1]
BadgeGules, a pile vert edged or, charged with a representation of the head of Thor, God of thunderstorms, affrontée, wearing a Nordic open crown composed of a circlet with eight arches all plain and meeting together in a point at the pinnacle, his beard formed into nine radiating coils each tapering to a point with a small spearhead at the end [1]
General characteristics
Class and type Bay-class minesweeper
Displacement
  • 390 long tons (400 t)
  • 412 long tons (419 t) (deep load)
Length152 ft (46 m)
Beam28 ft (8.5 m)
Draught8 ft (2.4 m)
Propulsion2 shafts, 2 GM 12-cylinder diesels, 2,400 bhp (1,800 kW)
Speed16 knots (30 km/h; 18 mph)
Range3,290 nmi (6,090 km; 3,790 mi) at 12 kn (22 km/h; 14 mph)
Complement38
Armament1 × 40 mm Bofors gun

HMCS Thunder (hull number MCB 161) was a Bay-class minesweeper that served in the Royal Canadian Navy during the Cold War. The ship was named for Thunder Bay. This was the third vessel to carry the name and the second in the class, replacing a previous vessel sold to France. The minesweeper entered service in 1957 and was paid off in 1997.

Contents

Design and description

The Bay class were designed and ordered as replacements for the Second World War-era minesweepers that the Royal Canadian Navy operated at the time. Similar to the Ton-class minesweeper, they were constructed of wood planking and aluminum framing. [2] [3]

Displacing 390 long tons (400 t) standard at 412 long tons (419 t) at deep load, the minesweepers were 152 ft (46 m) long with a beam of 28 ft (8.5 m) and a draught of 8 ft (2.4 m). [2] [3] They had a complement of 38 officers and ratings. [2] [note 1]

The Bay-class minesweepers were powered by two GM 12-cylinder diesel engines driving two shafts creating 2,400 brake horsepower (1,800 kW). This gave the ships a maximum speed of 16 knots (30 km/h; 18 mph) and a range of 3,290 nautical miles (6,090 km; 3,790 mi) at 12 knots (22 km/h; 14 mph). [3] [4] The ships were armed with one 40 mm Bofors gun and were equipped with minesweeping gear. [2] [3]

Service history

Thunder's keel was laid down on 1 September 1955 by Port Arthur Shipbuilding at Port Arthur, Ontario with the yard number 114 and launched 27 October 1956. [5] [6] The vessel was commissioned into the Royal Canadian Navy on 3 October 1957 with the hull identification number 161. [5]

After commissioning, Thunder was sent west and served with Training Group Pacific. [5] In 1972, the ship was re-designated a patrol escort and given the new hull number PF 161. In 1979, the vessel was designated a training ship and given the new hull number PB 161. [4] Thunder was paid off on 22 August 1997. [5] [7] [note 2]

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HMCS Ungava was a Bay-class minesweeper that was constructed for the Royal Canadian Navy during the Cold War. Entering service in 1954, the minesweeper was paid off in 1958 and transferred to the Turkish Navy. Renamed Tekirdağ, the ship remained in service until 1991 and was broken up in 2002.

References

Notes

  1. ↑ Gardiner and Chumbley claim the complement was 40.
  2. ↑ Colledge claims the ship was paid off in September 1997.

Citations

  1. 1 2 Arbuckle, p. 121
  2. 1 2 3 4 Macpherson and Barrie, p. 271
  3. 1 2 3 4 Gardiner and Chumbley, p. 49
  4. 1 2 Moore, p. 82
  5. 1 2 3 4 Macpherson and Barrie, p. 277
  6. ↑ "Thunder (6124447)" . Miramar Ship Index . Retrieved 30 October 2016.
  7. ↑ Colledge, p. 627

References

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