Japanese submarine chaser CH-4
| History | |
|---|---|
| Empire of Japan | |
| Name | CH-4 | 
| Builder | Sakurajima Zosensho, Osaka | 
| Laid down | 1 January 1938 | 
| Launched | 13 September 1938 | 
| Completed | 28 December 1938 | 
| Commissioned | 28 December 1938 | 
| Decommissioned | 3 May 1947 | 
| Out of service | 13 August 1945 | 
| General characteristics | |
| Type | Submarine chaser | 
| Displacement | 
 | 
| Length | 
 | 
| Beam | 5.6 m (18 ft 4 in) | 
| Draught | 2.1 m (6 ft 11 in) | 
| Propulsion | 2 × Kampon Mk.22 Model 6 diesels, 2 shafts, 2,600 bhp | 
| Speed | 20.0 knots (23.0 mph; 37.0 km/h) | 
| Range | 2,000 nmi (3,700 km) at 14 kn (16 mph; 26 km/h) | 
| Complement | 59 | 
| Armament | 
 | 
CH-4 was a No.4-class submarine chaser of the Imperial Japanese Navy during World War II.