| History | |
|---|---|
  Canada | |
| Name | Thunder |
| Namesake | Thunder Bay |
| Builder | Port Arthur Shipbuilding Co., Port Arthur |
| Laid down | 1 September 1955 |
| Launched | 27 October 1956 |
| Commissioned | 3 March 1957 |
| Decommissioned | 22 August 1997 |
| Identification | MCB 161 |
| Honours and awards | Atlantic 1941–44, Normandy 1944, English Channel 1944–45[1] |
| Badge | Gules, 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 |
|
| Length | 152 ft (46 m) |
| Beam | 28 ft (8.5 m) |
| Draught | 8 ft (2.4 m) |
| Propulsion | 2 shafts, 2 GM 12-cylinder diesels, 2,400 bhp (1,800 kW) |
| Speed | 16 knots (30 km/h; 18 mph) |
| Range | 3,290 nmi (6,090 km; 3,790 mi) at 12 kn (22 km/h; 14 mph) |
| Complement | 38 |
| Armament | 1 × 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.