HNLMS O 7

History
Netherlands
NameO 7
BuilderMaatschappij Fijenoord, Rotterdam
Laid down12 May 1914
Launched22 July 1916
Commissioned23 December 1916
Decommissioned21 November 1939
FateScrapped
General characteristics
Class & typeUnique submarine
Displacement
  • 178.6 tons
  • 209.3 tons
Length34.24 m (112 ft 4 in)
Beam3.9 m (12 ft 10 in)
Draught2.88 m (9 ft 5 in)
Propulsion
Speed
  • 11.5 kn (21.3 km/h; 13.2 mph) surfaced
  • 8.5 kn (15.7 km/h; 9.8 mph) submerged
Range
  • 750 nmi (1,390 km; 860 mi) at 10 kn (19 km/h; 12 mph) on the surface
  • 42 nmi (78 km; 48 mi) at 7 kn (13 km/h; 8.1 mph) submerged
Complement15
Armament

HNLMS O 7 was a unique patrol submarine of the Royal Netherlands Navy for use in the home waters of Europe. The ship was built by the Maatschappij Fijenoord shipyard in Rotterdam. The submarines diving depth was 40 metres. O 6 was very similar to the O 7 and they are sometimes regarded as one class.