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| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate | 
|---|---|---|---|---|---|---|---|
| 第5号掃海艇 [5-go] | Mitsui, Tamano | 3/1928 | 30.10.1928 | 2.1929 | sunk 4.11.1944 | ||
| 第6号掃海艇 [6-go] | Hitachi, Sakurajima | 3.1928 | 29.10.1928 | 2.1929 | sunk 26.12.1941 | 
| Displacement standard, t | 620  | 
                                                            
                                                                                                                
                                                
                
|---|---|
| Displacement normal, t | 717  | 
                                                            
                                                                                                                
                                                
                
| Length, m | 72.0 pp 75.0 wl 77.0 oa  | 
                                                            
                                                                                                                
                                                
                
| Breadth, m | 8.25  | 
                                                            
                                                                                                                
                                                
                
| Draught, m | 2.25  | 
                                                            
                                                                                                                
                                                
                
| No of shafts | 2  | 
                                                            
                                                                                                                
                                                
                
| Machinery | 2 VTE, 3 Kampon boilers  | 
                                                            
                                                                                                                
                                                
                
| Power, h. p. | 4000  | 
                                                            
                                                                                                                
                                                
                
| Max speed, kts | 21  | 
                                                            
                                                                                                                
                                                
                
| Fuel, t | coal 176  | 
                                                            
                                                                                                                
                                                
                
| Endurance, nm(kts) | 2000(14) | 
| Armament | 2 x 1 - 120/45 3-shiki, 1 x 1 - 76/40 11-shiki, 1 x 1 - 13.2/76, mechanical minesweeping gear or 50 mines  | 
                                                            
                                                                                                                
                                                
                
| Complement | 87  | 
                                                            
                                                                                
            
                            Built under the 1927 programme. Development of W1 class.
1934 - 1935, both: permanent ballast was added, full displacement was 826t; - 1 x 1 - 76/40.
1944, 5-go: - 1 x 1 - 120/45, 1 x 1 - 13.2/76, minesweeping gear; + 1 x 2 - 25/60 96-shiki, 3 x 1 - 25/60 96-shiki, 2 DCT (36), 93-shiki hydrophone
 W6 26.12.1941 was sunk at Borneo by Dutch aircraft.  W5 4.11.1944 was sunk E off Sumatra by British submarine  Terrapin.

