K VIII-class submarine
Dutch submarine K X, in Surabaya, Dutch East Indies  | |
| Class overview | |
|---|---|
| Name | K VIII class | 
| Builders | Koninklijke Maatschappij De Schelde, Vlissingen, Netherlands | 
| Operators | |
| Preceded by | K V class | 
| Succeeded by | K XI class | 
| Built | 1917–1923 | 
| In commission | 1922–1944 | 
| Completed | 3 | 
| Retired | 3 | 
| General characteristics | |
| Type | Patrol submarine | 
| Displacement | |
| Length | 64.41 m (211 ft 4 in) | 
| Beam | 5.6 m (18 ft 4 in) | 
| Draught | 3.55 m (11 ft 8 in) | 
| Propulsion | 
  | 
| Speed | 
  | 
| Range | 
  | 
| Test depth | 50 m (160 ft) | 
| Complement | 31 | 
| Armament | 
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The K VIII-class submarine was a three boat class of submarines of the Koninklijke Marine (Royal Netherlands Navy). The class varied from K V-class submarine due to the removal of two external torpedo tubes, which were removed to reduce the boats' vulnerability to depth charging. The boat had a diving depth of 50 metres (160 ft). K VIII-class submarine was built after the John Philip Holland design.
All ships were still in service at the start of World War II. During the war K IX was transferred to the Royal Australian Navy and renamed K9.