Black Swan-class sloop

HMS Black Swan in April 1945
Class overview
NameBlack Swan class
Operators
Preceded byEgret class
Built1938–1946
In commission1939–1981
Planned42
Completed12 (original) + 25 (modified)
Cancelled5
Lost6
Retired30
General characteristics
TypeSloop-of-war
Displacement
  • 1,250 tons original
  • 1,350 tons modified
Length299 ft 6 in (91.29 m)
Beam
  • 37 ft 6 in (11.43 m) original
  • 38 ft 6 in (11.73 m) modified
Draught11 ft (3.4 m)
Propulsion
  • Geared turbines, 2 shafts:
  • 3,600 hp (2.68 MW) (original)
  • 4,300 hp (3.21 MW) (modified)
Speed
  • 19 knots (35 km/h) (original)
  • 20 knots (37 km/h) (modified)
Range7,500 nmi (13,900 km) at 12 kn (22 km/h)
Complement
  • 180 (original)
  • 192 (modified)
Armament

The Black Swan class and Modified Black Swan class were two classes of sloop of the Royal Navy and Royal Indian Navy. Twelve Black Swans were launched between 1939 and 1943, including four for the Royal Indian Navy; twenty-five Modified Black Swans were launched between 1942 and 1945, including two for the Royal Indian Navy; several other ships were cancelled.