HNLMS O 9

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Hr. Ms. O 9.jpg
O 9
History
Flag of the Netherlands.svgNetherlands
NameO 9
BuilderKoninklijke Maatschappij De Schelde, Flushing
Laid down1 December 1923 or 23 September 1922
Launched7 April 1925
Commissioned18 January 1926
Decommissioned1 December 1944
FateSold for scrap October 1946
General characteristics [1]
Class and type O 9-class submarine
Displacement
  • 526 tons surfaced
  • 656 tons submerged
Length54.66 m (179 ft 4 in)
Beam5.7 m (18 ft 8 in)
Draught3.53 m (11 ft 7 in)
Propulsion
Speed
  • 12  kn (22 km/h; 14 mph) surfaced
  • 8 kn (15 km/h; 9.2 mph) submerged
Range
  • 3,500  nmi (6,500 km; 4,000 mi) at 8 kn (15 km/h; 9.2 mph) on the surface
  • 25  nmi (46 km; 29 mi) at 8 kn (15 km/h; 9.2 mph) submerged
Complement29
Armament

O 9 was an O 9-class patrol submarines of the Royal Netherlands Navy. The ship was built by Koninklijke Maatschappij De Schelde shipyard in Flushing.

Contents

Design

In February 1943 the O 9 was equipped with a fire control system that was developed by its commander Drijfhout van Hooff and manufactured by Cambridge Instrument Company Ltd. [2]

Service history

The submarine was ordered on 30 August 1921 and laid down in Flushing at the shipyard of Koninklijke Maatschappij De Schelde on 1 December 1923 or 23 September 1922. The launch took place on 7 April 1925. On 18 January 1926 the ship is commissioned in the Dutch navy. [3]

21 June 1926, O 9, together with O 11, Maarten Harpertszoon Tromp, Jacob van Heemskerck, Z 7 and Z 8, sailed from Den Helder to the Baltic Sea to visit the ports of Kiel, Göteborg and Trondheim. [3]

In 1929 O 9, O 10, Jacob van Heemskerck, Z 5, Z 6, made a trip to the Baltic Sea for exercises. The next year on 30 July 1930 O 9, O 10, Jacob van Heemskerck and Witte de With visited Antwerp. [3]

In 1931 O 9, O 10, O 8, Jacob van Heemskerck, Z 7 and Z 8, made again a trip to the Baltic Sea for exercises. She sailed for the Baltics again in 1936 with her sisters O 10, O 11 and Hertog Hendrik and Z 5. In 1939 O 9 together with her sisters O 10, O 11 were attached to the coastal division. They acted as the offensive part of Dutch coastal defense. [3]

From 9 to 11 May 1940 she and O 10 are on patrol off the coast of the Netherlands. During the patrol O 9 was attacked by German military airplanes. 12 May 1940 she, O 10 and a tugboat fled to the United Kingdom where they arrived on 15 May 1940. [3] While in the UK the O 9 was docked regularly for maintenance, which was needed because it was an old submarine. [4]

During the war she patrolled the English Channel and the Bay of Biscay. From August 1940 to March 1944 O 9 was attached to the 7th Training Flotilla in Rothesay and used as an ASDIC piggy boat. 1 December 1944 O 9 was decommissioned and September 1945 stricken. October 1946 she was sold for scrapping. [3]

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References

  1. ↑ "Dutch Submarines: The O 9 submarine class". dutchsubmarines.com. 2012. Retrieved 3 September 2013.
  2. ↑ "Een stukje techniek uit de oude doos" (PDF). Klaar Voor Onderwater (in Dutch). No. 56. Den Helder: Onderzeedienst Reünistenvereniging. June 1996. pp. 9–12.
  3. 1 2 3 4 5 6 "Dutch Submarines: The submarine O 9". dutchsubmarines.com. 2012. Retrieved 3 September 2013.
  4. ↑ Verbaan, W. (March 2001). "Belevenissen van een zeuntje "Hr.Ms. 0-9"" (PDF). Klaar Voor Onderwater (in Dutch). Vol. 24, no. 75. Den Helder: Onderzeedienst Reünistenvereniging. pp. 12–17.

Further reading

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