The need for fast construction coupled with the limitations of
engineering resources resulted in several variations existing based
on the availability of propulsion machinery. They all had twin
screws, but the machinery was a mix of steam turbine, slow-speed
steam reciprocating, high-speed steam reciprocating, and diesel.
Displacement varied with propulsion machinery from 590 to 672 tons.
The reciprocating engine powered Bangors were also known as
the Blyth class and the steam turbined ones as the
Ardrossan class.
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The Bangor-class minesweepers were a class of
minesweepers operated by the Royal Navy (RN), Royal
Canadian Navy (RCN) and Royal Indian Navy (RIN) during
World War II.
Their small size gave them poor sea handling abilities, reportedly worse even than the Flower class corvettes. The diesel-engined versions were considered to have poorer handling characteristics than the slow-speed reciprocating-engined versions. Their shallow draft made them unstable and their short hulls tended to bury the bow when operating in a head sea.
The armament varied from ship to ship with 3-4" main guns and anything from 0.5mg to 20mm oerlikons for AA guns.
| Displacement | 600 tons std, 710 tons full load. |
| Length | 162 ft |
| Breadth | 28 ft |
| Draught | 8 ft |
| Machinery | 2 shaft Triple Expansion, 2,000shp |
| Speed | 16 knots |
| Range | 2000 miles at 10 knots |
| Armour | nil |
| Armament | 1 x 3" (2x1) 4 x 0.5"mg (1x4) |
| Mines | nil |
| Torpedoes | nil |
| Complement | 60 |
| Notes |
