| Displacement | 500t standard, 551t trial |
|---|---|
| Length | 69.0m pp, 72.0m wl, 74.0m oa |
| Width | 8.20m |
| Draught | 2.07m |
| Machinery | 2-shaft recipro, 2 boilers, 3200ihp |
| Speed | 20kt |
| Armament | 2-12cm/45cal gun, 2-13.2mm AA |
| Complement | ? |
| Name | Plan | Builder | Laid down | Launch | Complete | ||
|---|---|---|---|---|---|---|---|
| W-13 | FY1931 | Fujinagata SB | 1931.12.22 | 1933. 3.30 | 1933. 8.31 | MSw | 1942. 1.12 sunk (action, off Tarakan) 1945.11.30 disc |
| W-14 | FY1931 | Hitachi SB | 1931.12.22 | 1933. 5.20 | 1933. 9.30 | MSw | 1942. 1.12 sunk (action, off Tarakan) 1945.11.30 disc |
| W-15 | FY1931 | Fujinagata SB | 1933. 4. 6 | 1934. 2.14 | 1934. 8.21 | MSw | 1945. 3. 5 damaged (torpedoed, off Ryukyu Is) [29.30N, 129.33E] 1945. 5.10 disc |
| W-16 | FY1931 | Mitsui, Tamano | 1933. 6.20 | 1934. 3.30 | 1934. 9.29 | MSw | 1943. 9.11 sunk (air attack, off Port Macassar) [06.08S, 119.20E] 1943.11. 1 disc |