HNoMS A-4 |
|
| Class overview | |
|---|---|
| Builders: | Krupp Germania shipyard at Kiel, Germany |
| Operators: | Royal Norwegian Navy |
| Preceded by: | No preceding class of submarine, only HNoMS A-1 (Kobben) |
| Succeeded by: | Norwegian B class submarine |
| In service: | – 16 April 1940 |
| In commission: | 2 March 1914 |
| Completed: | HNoMS A-2 HNoMS A-3 HNoMS A-4 |
| Active: | 3 |
| Lost: | 3 |
| General characteristics | |
| Displacement: | 268 tons surfaced 353 tons submerged |
| Length: | 46.5 m |
| Beam: | 4.8 m |
| Draught: | 2.7 m |
| Propulsion: | 2 vertical 700 shp diesel engines/2 380 shp electric engines |
| Speed: | maximum 14 knots (25.7 km/h) surfaced maximum 9 knots (16.5 km/h) dived |
| Range: | 1,600 nautical miles (5,370.8 km) at 9 knots (16.5 km/h) surfaced 100 nautical miles (277.8 km) submerged at 3 knots (5.5 km/h) |
| Complement: | 16 (? officers and ? ratings) |
| Armament: | Three 45 cm (17.7 inch) torpedo tubes 1 × 76 mm gun |
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 used it 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.