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Wednesday 15 March 2023

Japanese medium class submarines RO-60 – RO-68 built in 1923

Modified British L-class submarines design with 6 instead of 6 torpedo tubes. Used for training purposes. Displacement of 988 (standard tons and as dimensions 76.2 x 7.3 x 3.71 metres. Submerged time 60 seconds. Submergence depth 60 metres. Speed 16 (surfaced)-8 (submerged) knots. Armament 6 torpedo tubes forward. Battery 240 cells-240V. Engines 4 cycle-02,400 shp horsepower.  

Source

U.S. Naval Technical Mission to Japan. Report S-01-1 Characteristics of Japanese naval vessels article 1 submarines. Dated January 1946.

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