Norwegian K class submarine

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KNM Kaura at the Laboe Naval Memorial
KNM Kaura at the Laboe Naval Memorial

The Norwegian K class submarines are a class of three submarines the Royal Norwegian Navy received from Germany in 1948 as Allied war spoils. They were built as the Type VIIC/41 U-boat from 1940 to 1945. The ships were named HNoMS Kya, HNoMS Kinn and HNoMS Kaura. Kaura was returned to Germany in 1971 as a museum ship. It is the only surviving Type VII in the world.

The German type VIIC/41 was a slightly modified version of the successful VIIC and had the same armament and engines. The difference was a stronger pressure hull and lighter machinery to compensate for the added steel in the hull, making them actually slightly lighter than the VIIC. A total of 91 were built; all of them from U-1271 onwards lacked the fittings to handle mines.

[edit] General characteristics

  • Displacement: surfaced 769 tons, submerged 871 tons, total 1070 tons
  • Length: overall 67.1 m, pressure hull 50.5 m
  • Beam: overall 6.2 m, pressure hull 4.7 m
  • Draft: 4.74 m
  • Height: 9.6 m
  • Power: surfaced 3200 hp (2,400 kW), submerged 750 hp (560 kW)
  • Speed: surfaced 17.7 knot (33 km/h), submerged 7.6 knot (14 km/h)
  • Range: surfaced 14,500 km (8500 mile) at 10 knot (19 km/h), submerged 125 km (80 mile) at 4 knot (7 km/h)
  • Torpedoes: 14 (4 bow, 1 stern)
  • Deck gun: 88 mm/45 with 220 rounds
  • Crew: 44-52 men
  • Max depth: 250 m (820 ft)