Engineering:K VIII-class submarine

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Dutch Submarine K X, in Surabaya, Dutch East Indies.
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:
  • 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). K VIII-class submarine was built after the John Philip Holland design. [1]

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.[2]

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

  1. ↑ K VIII-class submarine, naval-encyclopedia.com
  2. ↑ Description of class



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