Grampus Class Submarine (1932)

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Britain's built six Grampus or Porpoise Class Minelaying Submarines in the 1930s.

Overview of 6 vessels
Citations for this data available on individual ship pages
Name Builder Laid Down Launched Completed Fate
Porpoise Vickers-Armstrongs 22 Sep, 1931 30 Aug, 1932 11 Mar, 1933 Sunk 16 Jan, 1945
Grampus Chatham Royal Dockyard 20 Aug, 1934 25 Feb, 1936 10 Mar, 1937 Sunk 16 Jun, 1940
Narwhal Vickers-Armstrongs 29 May, 1934 29 Aug, 1935 28 Feb, 1936 Sunk 23 Jul, 1940
Rorqual Vickers-Armstrongs 1 May, 1935 27 Jul, 1936 10 Feb, 1937 Sold 19 Nov, 1945
Cachalot Scotts Shipbuilding and Engineering Company 12 May, 1936 2 Dec, 1937 15 Aug, 1938 Sunk 30 Jul, 1941
Seal Chatham Royal Dockyard 9 Dec, 1936 27 Sep, 1938 24 May, 1939 Captured 5 May, 1940

Service

Armament

  • six 21-in torpedo tubes forward with 12 torpedoes
  • one QF Mark XII 4-in gun
  • fifty mines

See Also

Footnotes

Bibliography

  • Chesneau, Roger (editor) (1980). Conway's All the World's Fighting Ships 1922–1946. London: Conway Maritime Press. (on Amazon.com and Amazon.co.uk).


Grampus Class Minelaying Submarine
  Porpoise Grampus Narwhal  
  Rorqual Cachalot Seal  
<– River Class Submarines (UK)