O 9-class submarine

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Hr. Ms. O 9.jpg
O 9
Class overview
Name: O 9 class
Builders:
  • Koninklijke Maatschappij De Schelde, Flushing
  • Nederlandsche Dok en Scheepsbouw Maatschappij, Amsterdam
  • Fijenoord, Rotterdam
Operators:  Royal Netherlands Navy
Preceded by: O 8
Succeeded by: O 12 class
Built: 1923–1926
Completed: 3
General characteristics
Type: Submarine
Displacement:
  • 526 tons surfaced
  • 656 tons submerged
Length: 54.66 m (179 ft 4 in)
Beam: 5.7 m (18 ft 8 in)
Draught: 3.53 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
Complement: 29
Armament:

The O 9 class was a class of three submarines, built for the Royal Netherlands Navy. Used for patrols in the Dutch home waters. The class comprised O 9, O 10, and O 11. The submarines diving depth was 60 meters.

Construction[edit]

The ships were built by three different shipyards. O 9 was built by the Koninklijke Maatschappij De Schelde in Flushing. O 10 in Amsterdam at the Nederlandsche Dok en Scheepsbouw Maatschappij and O 11 in Rotterdam at Fijenoord shipyard.

Name Laid down Launched Commissioned Decommissioned
O 9 1 December 1923 or 23 September 1922 7 April 1925 18 January 1926 1 December 1944
O 10 24 December 1923 30 July 1925 1 September 1926 11 October 1944
O 11 24 December 1922 19 March 1925 18 January 1926 Dutch Navy: 14 May 1940 (scuttled)
German navy: September 1944 (sunk)

At the time of the German invasion O 11 was under repair in Den Helder. On 14 May 1940 she was scuttled there to prevent her being captured by German forces. However the Germans raised the ship and ordered it repaired. In September 1944 O 11 was sunk in Den Helder to block the entrance of the harbour.

External links[edit]