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Kingfisher-class sloop

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Title: Kingfisher-class sloop  
Author: World Heritage Encyclopedia
Language: English
Subject: HMS Kingfisher (L70), Sloop-of-war, WWII British ships, Parthian-class submarine, HMS Adventure (M23)
Publisher: World Heritage Encyclopedia

Kingfisher-class sloop

HMS Shearwater
HMS Shearwater
Class overview
Operators:  Royal Navy
Built: 1934–1939
In commission: 1935–1950
Completed: 9
Lost: 2
General characteristics
Type: Sloop-of-war
  • Kingfisher group;
  • 510 long tons (518 t) standard
  • 680 long tons (691 t) full load
  • Kittiwake group;
  • 530 long tons (539 t) standard
  • 700 long tons (711 t) full load
  • Shearwater group;
  • 580 long tons (589 t) standard
  • 750 long tons (762 t) full load
  • 234 ft (71 m) p/p
  • 243 ft 3 in (74.14 m) o/a
Beam: 26 ft 6 in (8.08 m)
  • Kingfisher group; 6 ft (1.8 m)
  • Kittiwake group; 6 ft 3 in (1.91 m)
  • Shearwater group; 6 ft 6 in (1.98 m)
Speed: 20 knots (37 km/h; 23 mph)
Complement: 60

The Kingfisher class was a ship class of nine patrol sloops of the British Royal Navy built in three groups of three each during the 1930s, that saw service during World War II, mainly on East coast convoys in the North Sea.


  • Design 1
  • Modifications 2
  • Ships 3
    • Kingfisher group 3.1
    • Kittiwake group 3.2
    • Shearwater group 3.3
  • In fiction 4
  • Bibliography 5
  • External links 6


The Kingfisher class was an attempt to build a small patrol vessel under 600 tons, such vessels being outwith the clauses of the London Naval Treaty of 1930. It was intended that it would escort coastal shipping in wartime.

The design had a number of shortcomings, however. Firstly, it was designed to too high a standard; constructed to full naval warship specifications and powered by geared steam turbine engines, it was not suitable for mass production. Secondly, it was too small and short on range, and the hull-form, based on a scaled-down destroyer, was not suitable for open ocean work, where escorts were seriously lacking in numbers during wartime. Thirdly, armed originally with only a single 4-inch gun forward and depth charges aft, they were limited in their ability to defend themselves, or their charges.


The woeful lack of defensive armament was addressed early in the war by adding a multiple Vickers machine gun on the quarterdeck in the Kingfisher and Kittiwake groups, as per the Shearwaters. As they became available, two single 20 mm Oerlikon guns were added, on single pedestal mounts on the deckhouse aft, with the useless machine gun being replaced later with a further pair of such weapons. Centimetric Radar Type 271 was added on the roof of the bridge as it became available, this was a target indication set capable of picking up the conning tower or even the periscope or schnorkel of a submarine. Radar Type 286 air warning was added at the masthead. The ships that had the Mark V gun on the open mounting HA Mark III had a shield added to give the gun crews a measure of protection on the exposed fo'c'sle.


Kingfisher group

Kittiwake group

Shearwater group

In fiction

Nicholas Monsarrat, the author of The Cruel Sea, served in two Kingfisher-class sloops: HMS Guillemot in 1942 as First Lieutenant, and HMS Shearwater in 1943 as Captain, after they had been reclassified as corvettes. HMS Dipper and HMS Winger were fictional Kingfisher class corvettes in his stories East Coast Corvette (1943) and Corvette Command (1944)


  • British and Empire Warships of the Second World War, H Trevor Lenton, Greenhill Books, ISBN 1-85367-277-7
  • British Destroyers and Frigates; the Second World War and After, Norman Friedman, Chatham Publishing, ISBN 1-86176-137-6.
  • Conway's All the World's Fighting Ships, 1922-1946, Ed. Robert Gardiner, Naval Institute Press, ISBN 0-87021-913-8

External links

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