| Displacement | 648t standard, 743t trial |
|---|---|
| Length | 67.30m pp, 71.30m wl, 72.50m oa |
| Width | 7.85m |
| Draught | 2.61m |
| Machinery | 2-shaft geared turbine, 2 boilers, 3850shp |
| Speed | 20kt |
| Range | 2000nm by 14kt |
| Armament | 3-12cm/45cal AA gun, 2-25mm AA, DCs |
| Complement | ? |
| Name | Plan | Builder | Laid down | Launch | Complete | ||
|---|---|---|---|---|---|---|---|
| W-19 | FY1939 | Ishikawajima SB | 1940. 9.17 | 1941. 2.18 | 1941. 5.31 | MSw | 1941.12.10 sunk (air attack, off Kagayan, Luzon I) [18.22N, 121.38E] 1945.11.30 disc |
| W-20 | FY1939 | Ishikawajima SB | 1941. 3.19 | 1941. 9.17 | 1941.12.15 | MSw | 1945. 5. 5 sunk (torpedoed, Yellow sea) [34.16N, 123.37E] 1945. 5.25 disc |
| W-21 | FY1939 | Harima SB | 1941. 9.20 | 1941. 2.28 | 1942. 6.39 | MSw | 1945.10.25 disc 1947.10. 1 to USA, BU |
| W-22 | FY1939 | Ishikawajima SB | 1941.10. 6 | 1942. 4.28 | 1942. 7.31 | MSw | 1944.11.11 sunk (air attack, off Palau) 1945. 1.10 disc |
| W-23 | FY1939 | Ishikawajima SB | 1942. 5. 5 | 1943. 1.13 | 1943. 3.31 | MSw | 1945.11.30 disc 1947.10. 3 to USSR |
| W-24 | FY1939 | Harima SB | 1942. 2. 5 | 1942. 9.26 | 1943. 1.25 | MSw | 1945. 7.15 sunk (air attack, Tsugaru Strait) [41.38N, 141.00E] 1945. 9.10 disc |
| W-25 | FY1941 | Kure NYd | ? | 1942 | 1943. 4.30 | MSw | 1944. 7. 4 sunk (air attack, Chichijima) [28.35N, 141.04E] 1944. 9.10 disc |
| W-26 | FY1941 | Mitsubishi, Yokohama | ? | 1942 | 1943. 3.31 | MSw | 1944. 2.17 sunk (air attack, at Rabaul) 1944. 4.30 disc |
| W-27 | FY1941 | Harima SB | ? | 1942 | 1943. 7.31 | MSw | 1945. 7.10 sunk (torpedoed, off Yamada bay) [39.20N, 142.07E] 1945. 9.15 disc |
| W-28 | FY1941 | Kure NYd | ? | 1943 | 1943. 6.28 | MSw | 1944. 8.29 sunk (torpedoed, N of Celebes) [02.15N, 123.29E] 1944.10.10 disc |
| W-29 | FY1941 | Ishikawajima SB | ? | 1943 | 1943.10.22 | MSw | 1945. 5. 7 sunk (mined, Kanmon Strait) [34.02N, 130.54E] 1945. 8.10 disc |
| W-30 | FY1941 | Ishikawajima SB | ? | 1943 | 1944. 2. 5 | MSw | 1944.11.11 sunk (air attack, Ormoc bay) [10.50N, 124.31E] 1945. 1.10 disc |
| W-31 | FY1941 | - | - | - | - | Cancelled | |
| W-32 | FY1941 | - | - | - | - | Cancelled | |
| W-33 | FY1941 | Mitsubishi, Yokohama | ? | 1943 | 1943. 7.31 | MSw | 1945. 8. 9 sunk (air attack, Onagawa bay) 1945. 9.15 disc |
| W-34 | FY1941 | Ishikawajima SB | ? | 1943 | 1944. 5.29 | MSw | 1945. 5.21 sunk (torpedoed, E of Java sea) [06.18S, 116.14E] 1945. 6.10 disc |
| W-35 | FY1941 | - | - | - | - | Cancelled | |
| W-36 | FY1941 | - | - | - | - | Cancelled | |
| W-37 | FY1941 | - | - | - | - | Cancelled | |
| W-38 | FY1941 | Fujinagata SB | ? | 1944 | 1944. 6.10 | MSw | 1944.11.19 sunk (torpedoed, South China Sea) [21.21N, 119.45E] 1945. 3.10 disc |
| W-39 | FY1941 | Harima SB | ? | 1944 | 1944. 5.27 | MSw | 1945. 7.20 sunk (torpedoed, Yellow sea) [35.01N, 125.42E] 1945. 9.15 disc |
| W-40 | FY1941 | - | - | - | - | Cancelled | |
| W-41 | FY1941 | Fujinagata SB | ? | 1944 | 1944. 7.17 | MSw | 1945. 1. 4 sunk (air attack, Kaiko, Kainan I) 1945. 9.15 disc |
| W-42 | FY1942 | - | - | - | - | Cancelled | |
| W-43 | FY1942 | - | - | - | - | Cancelled | |
| W-44 | FY1942 | - | - | - | - | Cancelled | |
| W-45 | FY1942 | - | - | - | - | Cancelled | |
| W-46 | FY1942 | - | - | - | - | Cancelled | |
| W-47 | FY1942 | - | - | - | - | Cancelled | |
| W-48 | FY1942 | - | - | - | - | Cancelled | |
| W-49 | FY1942 | - | - | - | - | Cancelled | |
| W-50 | FY1942 | - | - | - | - | Cancelled | |
| W-51 | FY1942 | - | - | - | - | Cancelled | |
| W-52 | FY1942 | - | - | - | - | Cancelled | |
| W-53 | FY1942 | - | - | - | - | Cancelled | |
| W-54 | FY1942 | - | - | - | - | Cancelled | |
| W-55 | FY1942 | - | - | - | - | Cancelled | |
| W-56 | FY1942 | - | - | - | - | Cancelled | |
| W-57 | FY1942 | - | - | - | - | Cancelled | |
| W-58 | FY1942 | - | - | - | - | Cancelled | |
| W-59 | FY1942 | - | - | - | - | Cancelled | |
| W-60 | FY1942 | - | - | - | - | Cancelled | |
| W-61 | FY1942 | - | - | - | - | Cancelled | |
| W-62 | FY1942 | - | - | - | - | Cancelled | |
| W-63 | FY1942 | - | - | - | - | Cancelled | |
| W-64 | FY1942 | - | - | - | - | Cancelled | |
| W-65 | FY1942 | - | - | - | - | Cancelled | |
| W-66 | FY1942 | - | - | - | - | Cancelled | |
| W-67 | FY1942 | - | - | - | - | Cancelled | |
| W-68 | FY1942 | - | - | - | - | Cancelled | |
| W-69 | FY1942 | - | - | - | - | Cancelled | |
| W-70 | FY1942 | - | - | - | - | Cancelled | |
| W-71 | FY1942 | - | - | - | - | Cancelled | |
| W-72 | FY1942 | - | - | - | - | Cancelled | |
| W-73 | FY1942 | - | - | - | - | Cancelled | |
| W-74 | FY1942 | - | - | - | - | Cancelled | |
| W-75 | FY1942 | - | - | - | - | Cancelled | |
| W-76 | FY1942 | - | - | - | - | Cancelled | |
| W-77 | FY1942 | - | - | - | - | Cancelled | |
| W-78 | FY1942 | - | - | - | - | Cancelled | |
| W-79 | FY1942 | - | - | - | - | Cancelled | |
| W-80 | FY1942 | - | - | - | - | Cancelled | |
| W-81 | FY1942 | - | - | - | - | Cancelled | |
| W-82 | FY1942 | - | - | - | - | Cancelled | |
| W-83 | FY1942 | - | - | - | - | Cancelled | |
| W-84 | FY1942 | - | - | - | - | Cancelled | |
| W-85 | FY1942 | - | - | - | - | Cancelled | |
| W-86 | FY1942 | - | - | - | - | Cancelled | |
| W-87 | FY1942 | - | - | - | - | Cancelled | |
| W-88 | FY1942 | - | - | - | - | Cancelled |