Norwegian A-class submarine

The A-class submarines were a class of three vessels of German design built by the Krupp Germania naval shipyard in Kiel, Germany from 1913 to 1914 and deployed by the Royal Norwegian Navy.

HNoMS A-4
Class overview
Builders: Krupp Germania Kiel, Germany
Operators:  Royal Norwegian Navy
Preceded by: HNoMS Kobben (1909)
Succeeded by: B class
In service: 16 April 1940
In commission: 2 March 1914
Planned: 4
Building: 4
Completed: 4
Lost: 3
General characteristics
Type: Submarine
Displacement:
Length: 46.7 m (153 ft 3 in)
Beam: 4.78 m (15 ft 8 in)
Draught: 2.8 m (9 ft 2 in)
Propulsion:
  • 2 × vertical 700 shp (520 kW) diesel engines
  • 2 × 380 shp (280 kW) electric engines
Speed:
  • 14.2 kn (26.3 km/h; 16.3 mph) ↑
  • 9 knots (17 km/h; 10 mph) ↓
Range:
  • 1,600 nmi (3,000 km; 1,800 mi) at 9 knots (17 km/h; 10 mph) ↑
  • 100 nmi (190 km; 120 mi) at 3 knots (5.6 km/h; 3.5 mph) ↓
Test depth: 50 m (164 ft)
Boats & landing
craft carried:
1 dingi
Complement: 16 (? officers and ? ratings)
Armament:

The Norwegian government purchased four submarines that were almost completed in 1913 and received three of these before World War I. The fourth, A-5, was seized by German authorities at the outbreak of war and commissioned as SM UA. It was used for coastal protection and from 1916 as a training vessel in the Baltic Sea.[1]

Fates

All three A-class submarines were lost in the first week following the German invasion of Norway, one in combat and the other two through scuttling.

  • A-2 (2 March 1914 9 April 1940) attacked and severely damaged by the two German R boat minesweepers R-22 and R-23 off the Vallø peninsula near Tønsberg in the Oslofjord on 9 April 1940. Her crew was captured and she drifted ashore at Vallø, a total wreck.
  • A-3 (1914 16 April 1940) scuttled by own crew in Verkbukta at Tønsberg on 16 April 1940
  • A-4 (1914 16 April 1940) scuttled by own crew in Verkbukta at Tønsberg on 16 April 1940

Footnotes

  1. E.Gröner, Deutsche Kriegsschiffe, vol. III, p. 48

Literature

  • Abelsen, Frank (1986). Norwegian naval ships 19391945 (in Norwegian and English). Oslo: Sem & Stenersen AS. ISBN 82-7046-050-8.


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