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Black Swan Class, British Sloops


Photograph of HMS Black Swan

Imperial War Museum. Via Wikipedia Commons


Specifications:


Tonnage 1250 tons standard displacement
Dimensions 299'6" by 37'6" by 8'5"
91.29m by 11.43m by 2.57m
Maximum speed       19.5 knots
Complement
167
Armament 3x2 4"/45 DP guns (250 rounds per gun)
4x1 2pdr guns
4x1 0.30 Lewis machine guns
2 depth charge throwers
2 depth charge racks (40 depth charges)
Machinery
2-shaft Parsons geared turbine (4300 shp)
2 Admiralty 3-drum boilers
Bunkerage
415 tons
Range
7500 nautical miles (13,900 km) at 15 knots
Sensors
Type 127 sonar
Type 285 radar?
HF/DF
Modifications
Light antiaircraft generally upgraded to 6x2 20mm Oerlikon AA guns by the end of the war.


The Black Swan class were intended to be general-purpose sloops, capable of both minesweeping, convoy escort, and coastal escort. They were somewhat larger than previous sloops, mostly to give them the machinery needed for enough speed to pursue surfaced submarines. They could quickly swap some of their minesweeping gear for additional depth charges or vice versa at their base. Designated as Convoy Escorts, they are regarded by Friedman (2006) as the most successful of the British wartime escort classes.

Many of those serving in the war against Japan were Royal Indian Navy units.

British units in the Pacific:


Flamingo
Arrived 1944-1-16

Whimbrel
Arrived 1945-2-21

Black Swan     
Arrived 1945-6     

Indian units in the Pacific:


Kistna
Arrived 1944-2

Cauvery
Arrived 1944-3


References

Friedman (2006)



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