M-class submarine

The British Royal Navy M-class submarines were a small class of diesel-electric submarines built during World War I. The unique feature of the class design was a 12-inch (305 mm) gun mounted in a casemate forward of the conning tower.

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1917  Wikimedia, Wikidata
British M-class submarine
3 produced, 
submarine, Royal Navy, Armstrong Whitworth, 

HMS M1, HMS M2, HMS M4, 

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

Location: KML, Cluster Map, Maps,

• 

  HMS M3 ⓘ
  1918 M-class submarine

• 

  HMS M4 ⓘ
  1919 M-class submarine

• 

  HMS M1 ⓘ
  1917 M-class submarine

• 

  HMS M2 ⓘ
  1918 M-class submarine

Frameless

Type	Subtype	Date	Description	Notes	Source
timelineTypesgroup,event,object
timelineArrayArray
link	page		Dreadnought Project page@		Wikidata
link	page		RN Subs page@		Wikidata
object	watercraft	1918	HMS M3	M-class submarine, submarine	Wikidata
object	watercraft	1919	HMS M4	submarine, M-class submarine	Wikidata
site	shipwreck	1917	HMS M1	M-class submarine, shipwreck, submarine	Wikidata
site	shipwreck	1918	HMS M2	M-class submarine, shipwreck, submarine	Wikidata