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: |
 Royal Netherlands Navy Royal Australian Navy |
| 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: | Surfaced: 520 long tons (528 t) standard 583 long tons (592 t) full load Submerged: 715 long tons (726 t) standard 810 long tons (823 t) full load |
| 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: | K VIII 2 × 900 hp (671 kW) 8-cylinder MAN 2-stroke diesel engines K IX & K X 2 × 775 hp (578 kW) 6-cylinder Sulzer 2-stroke diesel engines All 2 × 200 hp (149 kW) electric motors 2 shafts |
| Speed: | K VIII 16 kn (30 km/h) surfaced 8 kn (15 km/h) submerged K IX & K X 15 kn (28 km/h) surfaced 8 kn (15 km/h) submerged |
| Range: | 3,500 nmi (6,500 km) at 11 kn (20 km/h) surfaced 25 nmi (46 km) at 8 kn (15 km/h) submerged |
| Test depth: | 50 m (160 ft) |
| Complement: | 31 |
| Armament: | 4 × 450 mm (17.7 in) torpedo tubes (2 bow, 2 stern) 10 × Type III 45cm torpedoes 1 × 88 mm (3.5 in) deck gun 1 × 12.7 mm machine gun |
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).
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.
Boats
| Name | Laid down | Launched | Commissioned | Decommissioned |
|---|---|---|---|---|
| K VIII | 31 October 1917 | 28 March 1922 | 15 September 1922 | 15 July 1942 |
| K IX Renamed: HMAS K9 |
1 March 1919 | 23 December 1922 | 21 June 1923 (Dutch navy) 22 June 1943 (Australian navy) |
15 July 1942 (Dutch navy) 31 March 1944 (Australian navy) |
| K X | 1 November 1919 | 2 May 1923 | 24 September 1923 | 2 March 1942 |
References
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