Seawolf Class Submarine (1913)

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Three Seawolf or "H" class submarines were completed for the U.S. Navy in 1913-14. A further six units being built for Russia were purchased in 1918. They were quite different from the American-built submarines of Britain's "H" class of 1915.

Design and Construction



In early 1916, the first three H class boats were operating out of California, their crews living aboard U.S.S. Cheyenne.[1]


See Also


  1. Estimates Submitted to the Secretary of the Navy, Volume II, 1916. p. 1553.


  • Gray, Randal (editor) (1985). Conway's All the World's Fighting Ships 1906–1921. London: Conway Maritime Press. (on and

Seawolf Class Submarine
Original Order
  Seawolf Nautilus Garfish  
Russian Units purchased in 1918
  H-4 H-5 H-6  
  H-7 H-8 H-9  
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