21-go 1923
31-go 1923
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| Fiat-Laurenti 1 | ||||||
| 第18号艦 <18-go>(No18), 11/1924- 呂1 <RO1> | Kawasaki, Kobe | 11/1918 | 28/7/1919 | 3/1920 | stricken 1930 | |
| 第21号艦 <21-go>(No21), 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>(No31), 11/1924- 呂3 <RO3> | Kawasaki, Kobe | 1/1920 | 10/3/1921 | 7/1922 | stricken 1930 | |
| 第32号艦 <32-go>(No32), 11/1924- 呂4 <RO4> | Kawasaki, Kobe | 1/1920 | 22/6/1921 | 5/1922 | stricken 1930 | |
| 第33号艦 <33-go>(No33), 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 |
RO1, 2: 4.20 RO3 - 5: 4.10 |
|
No of shafts |
2 |
|
Machinery |
2 FIAT diesels / 2 Savigliano electric motors |
|
Power, h. p. |
Ro1, 2: 2800 / 1200 Ro3 - 5: 2600 / 1200 |
|
Max speed, kts |
Ro1, 2: 13 / 8 Ro3 - 5: 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 |
Ship project history: Fiat-Laurenti type. Built in Japan under drawings of Fiat-Laurenti. Ordered under the 1915-1916 program (1st group) and 1918 program (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, 2008-10