Grampus-class submarine

The Grampus-class submarines were a group of minelaying submarines built for the Royal Navy in the late 1930s. These boats are sometimes referred to as the Porpoise class from the single prototype, HMS Porpoise built in 1932. Five boats to a modified design were built between 1936 and 1938. The ships were all named after marine mammals.

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1933 — 1945  Wikimedia, Wikidata
Porpoise-class submarine
6 produced, 
minelaying submarine, Royal Navy, Kriegsmarine, United Kingdom, 

HMS Cachalot, HMS Grampus, HMS Narwhal, HMS Porpoise, HMS Rorqual, mine, 

• Dreadnought Project page^@
• Naval Encyclopedia page^@
• RN Subs page^@
​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Location: KML, Cluster Map, Maps,
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  HMS Cachalot ⓘ
  1937 Grampus-class submarine

• 

  HMS Narwhal ⓘ
  1935 Grampus-class submarine

• 

  HMS Porpoise ⓘ
  1932 Grampus-class submarine

• 

  HMS Rorqual ⓘ
  1936 Grampus-class submarine

• 

  HMS Grampus ⓘ
  1936 Grampus-class submarine

• 

  HMS Seal ⓘ
  1938 Grampus-class submarine

1933-01-01T00:00:00Z

1945-01-01T00:00:00Z

1933 — 1945 Grampus-class submarine

1937-02-10T00:00:00Z

1937-02-10T00:00:00Z

1937 HMS Rorqual

1937-03-10T00:00:00Z

1937-03-10T00:00:00Z

1937 HMS Grampus

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Frameless

The Royal Navy during the Second World War A16327

HMS Seal

HMS Narwhal

Type	Subtype	Date	Description	Notes	Source
link	page		Dreadnought Project page@		Wikidata
link	page		Naval Encyclopedia page@		Wikidata
link	page		RN Subs page@		Wikidata
object	watercraft		HMS Cachalot	minelaying submarine, Grampus-class submarine	Wikidata
object	watercraft		HMS Narwhal	minelaying submarine, Grampus-class submarine	Wikidata
object	watercraft		HMS Porpoise	minelaying submarine, Grampus-class submarine	Wikidata
object	watercraft	1937	HMS Rorqual	minelaying submarine, Grampus-class submarine	Wikidata
object	watercraft	1937	HMS Grampus	minelaying submarine, Grampus-class submarine	Wikidata
site	shipwreck		HMS Seal	shipwreck, Grampus-class submarine, U-boat	Wikidata
commons	image		The Royal Navy during the Second World War A16327		Commons
commons	image		HMS Seal		Commons
commons	image		HMS Narwhal		Commons