4-go 1942
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| 第4号駆潜艇 <4-go>(Ch4) | Fujinagata, Osaka | 1/1938 | 13/9/1938 | 12/1938 | captured 8/1945, BU 1946 | |
| 第5号駆潜艇 <5-go>(Ch5) | Mitsubishi, Yokohama | 1/1938 | 28/7/1938 | 12/1938 | captured 8/1945, scuttled 11/7/1946 | |
| 第6号駆潜艇 <6-go>(Ch6) | Tsurumi, Yokohama | 7/1938 | 6/2/1939 | 5/1939 | sunk 30/3/1944 | |
| 第7号駆潜艇 <7-go>(Ch7) | Tsurumi, Yokohama | 10/1937 | 10/6/1938 | 11/1938 | sunk 11/4/1945 | |
| 第8号駆潜艇 <8-go>(Ch8) | Tama, Tamano | 1/1938 | 9/8/1938 | 11/1938 | sunk 4/3/1945 | |
| 第9号駆潜艇 <9-go>(Ch9) | Mitsubishi, Yokohama | 5/1938 | 15/10/1938 | 5/1939 | captured 8/1945, to China 10/1947 (Fu Ling) | |
| 第10号駆潜艇 <10-go>(Ch10) | Fujinagata, Osaka | 9/1938 | 31/1/1939 | 6/1939 | wrecked 2/5/1944 | |
| 第11号駆潜艇 <11-go>(Ch11) | Tsurumi, Yokohama | 1/1938 | 28/6/1938 | 2/1939 | sunk 6/11/1943 | |
| 第12号駆潜艇 <12-go>(Ch12) | Tama, Tamano | 7/1938 | 8/2/1939 | 4/1939 | lost 8/1944 |
|
Displacement standard, t |
291 |
|
Displacement full, t |
309 |
|
Length, m |
54.0 pp 55.5 wl 56.2 oa |
|
Breadth, m |
5.60 |
|
Draught, m |
2.15 |
|
No of shafts |
2 |
|
Machinery |
diesels |
|
Power, h. p. |
2600 |
|
Max speed, kts |
20 |
|
Fuel, t |
diesel oil |
| Armament |
1 x 2 - 40/62 HI 91-shiki, 2 DCT (36) |
|
Complement |
59 |
Ship project history: On the basis of construction of Ch3 under 3rd Supplementary program of 1937 9 chasers of Ch4 class have been built. Their main difference from predecessor became smaller superstructure moved astern for lightening of a fore end.
Modernizations: 1944 - 1945, all survived: + 1 x 3 - 25/60 96-shiki
Naval service: Ch11 was sunk 6/11/1943 W off Buka by American Army aircraft. Ch6 beached 30/4/1944 at Palau after air attack of USN TF.38. Ch12 was lost in August, 1944 off Palau by unknown cause. Ch8 was sunk 4/3/1945 in 85nm S off Penang by gunfire of British submarines Trenchant and Terrapin. Ch7 was sunk 11/4/1945 E off Car Nicobar by British RAF aircraft.
9-go
© Ivan Gogin, 2008-10