21-go 1923
31-go 1923
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Fiat-Laurenti 1 | |||||||
| 第18号艦 [18-go], 11.1924- 呂1 [RO1] | Kawasaki, Kobe | 11.1918 | 28.7.1919 | 3.1920 | stricken 1930 | ||
| 第21号艦 [21-go], 11.1924- 呂2 [RO2] | Kawasaki, Kobe | 11.1918 | 22.11.1919 | 4.1920 | stricken 1930 | ||
| Fiat-Laurenti 2 | |||||||
| 第31号艦 [31-go], 11.1924- 呂3 [RO3] | Kawasaki, Kobe | 1.1920 | 10.3.1921 | 7.1922 | stricken 1930 | ||
| 第32号艦 [32-go], 11.1924- 呂4 [RO4] | Kawasaki, Kobe | 1.1920 | 22.6.1921 | 5.1922 | stricken 1930 | ||
| 第33号艦 [33-go], 11.1924- 呂5 [RO5] | Kawasaki, Kobe | 1.1920 | 17.9.1921 | 3.1922 | stricken 1930 | ||
|
Displacement standard, t |
|
|
Displacement normal, t |
689 / 1047 |
|
Length, m |
60.5 pp 65.6 oa |
|
Breadth, m |
6.10 |
|
Draught, m |
18-go, 21-go: 4.20 31-33-go: 4.10 |
|
No of shafts |
2 |
|
Machinery |
2 FIAT diesels / 2 Savigliano electric motors |
|
Power, h. p. |
18-go, 21-go: 2800 / 1200 31-33-go: 2600 / 1200 |
|
Max speed, kts |
18-go, 21-go: 13 / 8 31-33-go: 14 / 8 |
|
Fuel, t |
diesel oil 58 |
| Endurance, nm(kts) | 3500(10) / 75(4) |
| Armament |
1 x 1 - 7.7/87, 5 - 450 TT (3 bow, 2 stern, 8) |
|
Complement |
43 |
|
Diving depth operational, m |
40 |
Project history: Fiat-Laurenti type. Built in Japan under drawings of Fiat-Laurenti. Ordered under the 1915-1916 programme (1st group) and 1918 programme (2nd group). Single-hulled.
Modernizations: 1923, all: - 1 x 1 - 7.7/87; + 1 x 1 - 76/23 41-shiki
Naval service: No significant events.
RO2
RO3
© Ivan Gogin, 2008-14