"R" Class Submarine (1917)

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Twenty-seven "R" class submarines were completed for the U.S. Navy in 1918 and 1919.

Design and Construction


Electric Boat design:

  • four 21-in tubes with 8 torpedoes

Lake design:

  • four 18-in tubes with 8 torpedoes


  • one 3-in/50

See Also



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

"R" Class Submarine
Electric Boat Design
R-1 R-2 R-3 R-4 R-5
R-6 R-7 R-8 R-9 R-10
R-11 R-12 R-13 R-14 R-15
R-16 R-17 R-18 R-19 R-20
Lake Design
R-21 R-22 R-23 R-24 R-25
  R-26 R-27  
<– "O" Class Submarines (US) "T" Class –>