German submarine U-970

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U 570.jpg
U-570 Type VIIC submarine that was captured by the British in 1941. This U-boat is almost identical to U-970.
History
War ensign of Germany (1938-1945).svg Nazi Germany
NameU-970
Ordered5 June 1941
Builder Blohm & Voss, Hamburg
Yard number170
Laid down29 May 1942
Launched11 February 1943
Commissioned25 March 1943
FateSunk on 8 June 1944
General characteristics
Class and type Type VIIC submarine
Displacement
Length
Beam
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Height9.60 m (31 ft 6 in)
Draught4.74 m (15 ft 7 in)
Installed power
  • 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion
Speed
  • 17.7 knots (32.8 km/h; 20.4 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
Range
  • 8,500  nmi (15,700  km; 9,800  mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth
  • 220 m (720 ft)
  • Crush depth: 250–295 m (820–968 ft)
Complement4 officers, 44–52 enlisted
Armament
Service record
Part of:
Identification codes: M 51 558
Commanders:
Operations:
  • 2 patrols:
  • 1st patrol:
  • 16 March – 22 April 1944
  • 2nd patrol:
  • 6 – 8 June 1944
Victories: None

German submarine U-970 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Contents

She was ordered on 5 June 1941, and was laid down on 29 May 1942 at Blohm & Voss, Hamburg, as yard number 170. She was launched on 11 February 1943 and commissioned under the command of Oberleutnant zur See Hans-Heinrich Ketels on 25 March 1943. [2]

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-970 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. [3] She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two Garbe, Lahmeyer & Co. RP 137/c double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft). [3]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). [3] When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-970 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA mines, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and one twin 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of between 44 — 52 men. [3]

Service history

On 8 June 1944, U-970 was sunk by depth charges west of Bordeaux, France, in the Bay of Biscay at 0135 hrs. U-970 was attacked by a British Sunderland of 228 Squadron/R RAF. Fourteen of the crew of fifty-two survived. [2]

The wreck is located at 45°15′N04°10′W / 45.250°N 4.167°W / 45.250; -4.167 . [2]

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References

  1. Helgason, Guðmundur. "Hans-Heinrich Ketels". German U-boats of WWII - uboat.net. Retrieved 7 April 2016.
  2. 1 2 3 Helgason, Guðmundur. "U-970". German U-boats of WWII - uboat.net. Retrieved 7 April 2016.
  3. 1 2 3 4 Gröner 1991, pp. 43–46.

Bibliography