Japanese submarine Ro-31
Ro-31 in 1935. | |
| History | |
|---|---|
| Japan | |
| Name | Submarine No. 70 |
| Builder | Kawasaki, Kobe, Japan |
| Laid down | 25 September 1921 |
| Launched | 15 February 1923 |
| Fate |
|
| Laid down | 20 December 1924 (rebuild) |
| Launched | 25 September 1926 (relaunch) |
| Completed | 10 May 1927 |
| Commissioned | 10 May 1927 |
| Renamed | Ro-31 on 10 May 1927 |
| Decommissioned | 15 December 1938 |
| Recommissioned | 9 February 1942 |
| Decommissioned | 31 January 1944 |
| Stricken | 25 May 1945 |
| Fate |
|
| General characteristics | |
| Class & type | Kaichū type submarine (K5 subclass) |
| Displacement |
|
| Length | 74.22 m (243 ft 6 in) overall |
| Beam | 6.12 m (20 ft 1 in) |
| Draft | 3.73 m (12 ft 3 in) |
| Installed power |
|
| Propulsion |
|
| Speed |
|
| Range |
|
| Test depth | 45.7 m (150 ft) |
| Crew | 44 |
| Armament |
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Ro-31, originally named Submarine No. 70, was an Imperial Japanese Navy Kaichu-Type submarine of the Kaichu V (Toku Chu) subclass. After a diving accident in 1923 prior to completion, she was salvaged, rebuilt, and completed in 1927. She served in a training role during World War II, surrendered at the end of the war in September 1945, and was scuttled in April 1946.