HMS Blackpool (J27)
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 HMS Blackpool | |
| History | |
|---|---|
 United Kingdom | |
| Name | HMS Blackpool |
| Laid down | 19 September 1939 |
| Launched | 4 July 1940 |
| Commissioned | 3 February 1941 |
| Decommissioned | July 1946 |
| Stricken | July 1946 |
| Fate | Transferred to Norway, late 1946 |
 Norway | |
| Name | HNoMS Tarna |
| Commissioned | 9 September 1946 |
| Stricken | 1 May 1961 |
| Identification | M-310 |
| Fate | Scrapped |
| General characteristics (as built) | |
| Class & type | Bangor-class minesweeper |
| Displacement | 605 long tons (615 t) |
| Length | 174 ft (53.0 m) (o/a) |
| Beam | 28 ft (8.5 m) |
| Draught | 8 ft 3 in (2.5 m) |
| Installed power | 2,000 bhp (1,500 kW) |
| Propulsion | 2 shafts; diesel engine |
| Speed | 16 knots (30 km/h; 18 mph) |
| Complement | 60 |
| Armament | |
HMS Blackpool (J27) was a diesel-powered British Bangor-class minesweeper that served in World War II. She was paid off and sold to the Royal Norwegian Navy in 1946.
The Bangor-class ships were designed to be mass produced, requiring a minimum of resources and able to be built in small shipyards inexperienced with naval work. The diesel-powered ships had an overall length of 174 feet (53.0 m), a beam of 28 feet (8.5 m), and a draught of 8 feet 3 inches (2.5 m) at full load. They displaced 605 long tons (615 t) at (standard) and 770 long tons (780 t) at full load. The ships had a pair of nine-cylinder diesel engines that drove the two propeller shafts. The engines were designed to produce a total of 2,000 brake horsepower (1,500 kW) which was intended to give the ships a speed of 16 knots (30 km/h; 18 mph). Their crew consisted of 60 officers and ratings.[1]
The armament of the Bangor-class ships consisted of a 12-pounder 3-inch (76 mm) gun mounted forward of the superstructure and a quadruple mount for 0.5 inches (12.7 mm) Vickers machine guns aft.[1] They could carry 40 depth charges when serving as convoy escorts.[2]
