| Displacement | 291t standard, 304t trial |
|---|---|
| Length | 54.00m pp, 55.50m wl |
| Width | 5.60m |
| Draught | 2.15m |
| Machinery | 2-shaft diesel, 2600bhp |
| Speed | 20kt |
| Armament | 2-40mm AA, 36 DCs |
| Complement | 59 |
| Name | Plan | Builder | Laid down | Launch | Complete | |
|---|---|---|---|---|---|---|
| CH-4 | Osaka IWks | 1938. 1.19 | 1938. 9.13 | 1938.12.28 | CH | 1940. 4. 1 CH 1945. 8.13 sunk (mined, Soerabaya Channel) 1947. 5. 3 disc |
| CH-5 | Mitsubishi, Yokohama | 1938. 1.25 | 1938. 7.28 | 1938.12. 6 | CH | 1940. 4. 1 CH 1946. 7.11 scuttled (S of Singapore) 1946. 8.10 disc |
| CH-6 | Tsurumi SB | 1938. 7. 5 | 1939. 2. 6 | 1939. 5.20 | CH | 1940. 4. 1 CH 1944. 3.30 sunk (air attack, at Palau) 1944.10.10 disc |
| CH-7 | Tsurumi SB | 1937.10.30 | 1938. 6.10 | 1938.11.15 | CH | 1940. 4. 1 CH 1945. 4.11 sunk (air attack, Carr Nicobar Is) [08.57N, 93.38E] 1945. 5.25 disc |
| CH-8 | Tama SB | 1938. 1.10 | 1938. 8. 9 | 1938.11.30 | CH | 1940. 4. 1 CH 1945. 3. 4 sunk (action, Malacca Strait) [04.04N, 100.35E] 1947. 5. 3 disc |
| CH-9 | Mitsubishi, Yokohama | 1938. 5.10 | 1938.10.15 | 1939. 5. 9 | CH | 1940. 4. 1 CH 1945.12.20 disc 1947.10. 3 to Chi |
| CH-10 | Osaka IWks | 1938. 9.16 | 1939. 1.31 | 1939. 6.15 | CH | 1940. 4. 1 CH 1944. 5. 2 sunk (wrecked, at Palau) [07.20N, 134.30E] 1944.11.10 disc |
| CH-11 | Tsurumi SB | 1938. 1.19 | 1938. 6.28 | 1939. 2. 2 | CH | 1940. 4. 1 CH 1943.11. 6 sunk (air attack, near Buka) 1945. 9.30 disc |
| CH-12 | Tama SB | 1938. 7.15 | 1939. 2. 8 | 1939. 4.30 | CH | 1940. 4. 1 CH 1944. 7.13 sunk (mined, E of Mindanao) 1945. 9.30 disc |