German Type UA submarine
HNoMS A-4
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| Class overview | |
|---|---|
| Builders: | Krupp Germania shipyard at Kiel, Germany |
| Operators: |
 Royal Norwegian Navy
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| Preceded by: |
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| Succeeded by: | Norwegian B-class submarine |
| In service: | – 16 April 1940 |
| In commission: | 2 March 1914 |
| Building: | 4 |
| Planned: | 4 |
| Completed: | |
| Active: | 3 |
| Lost: | 3 |
| General characteristics | |
| 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: | |
| Speed: | |
| Range: |
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| Test depth: | 50 m (164 ft) |
| Boats & landing craft carried: |
1 dingi |
| Complement: | 16 (? officers and ? ratings) |
| Armament: |
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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.
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.
All three A-class submarines were lost during the first week following the German invasion of Norway, one in combat and the other two through scuttling.
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