German submarine U-953

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History
War ensign of Germany (1938-1945).svg Nazi Germany
NameU-953
Ordered10 April 1941
Builder Blohm & Voss, Hamburg
Yard number153
Laid down10 February 1942
Launched28 October 1942
Commissioned17 December 1942
Fate
  • Surrendered on 9 May 1945
  • Transferred to United Kingdom on 29 May 1945
  • Broken up in 1950
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
  • 230 m (750 ft)
  • Crush depth: 250–295 m (820–968 ft)
Complement4 officers, 40–56 enlisted
Armament
Service record [1] [2]
Part of:
Identification codes: M 49 558
Commanders:
Operations:
  • 10 patrols:
  • 1st patrol:
  • 13 May – 22 July 1943
  • 2nd patrol:
  • 2 October – 17 November 1943
  • 3rd patrol:
  • 26 December 1943 – 20 February 1944
  • 4th patrol:
  • a. 30 March – 1 April 1944
  • b. 23 – 26 April 1944
  • 5th patrol:
  • 22 – 28 May 1944
  • 6th patrol:
  • 6 – 18 June 1944
  • 7th patrol:
  • 24 June – 22 July 1944
  • 8th patrol:
  • a. 10 – 11 August 1944
  • b. 12 – 19 August 1944
  • 9th patrol:
  • a. 31 August – 11 October 1944
  • b. 16 – 25 October 1944
  • c. 4 – 9 February 1945
  • d. 12 – 15 February 1945
  • 10th patrol:
  • a. 21 February – 3 April 1945
  • b. 6 – 9 April 1945
Victories: None

German submarine U-953 was a Type VIIC U-boat of Nazi Germany's navy ( Kriegsmarine ) during World War II.

Contents

The submarine was laid down on 10 February 1942 in the Blohm & Voss yard at Hamburg, launched on 28 October 1942, and commissioned on 17 December 1942 under the command of Oberleutnant zur See Karl-Heinz Marbach.

After training with the 5th U-boat Flotilla at Kiel, U-953 was transferred to the 3rd U-boat Flotilla based at La Pallice (in southwestern France), for front-line service on 1 June 1943. She sailed on ten war patrols with no ships sunk. She was transferred to the 33rd U-boat Flotilla on 15 October 1944, under the command of her second skipper, Oberleutnant zur See Herbert Werner, author of the memoir Iron Coffins . U-953 was surrendered at Trondheim in Norway on 9 May 1945.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-953 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 Brown, Boveri & Cie GG UB 720/8 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-953 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, 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 forty-four and sixty. [3]

Service history

First patrol

U-953 first sailed from Kiel on 13 May 1943, and out into the mid-Atlantic. She had no successes, and on 9 July was attacked by an aircraft, which killed one crewman and wounded two others. The U-boat arrived at La Pallice on 22 July after 71 days on patrol. [4]

Second and third patrols

U-953's second Atlantic patrol from 2 October until 17 November 1943 was uneventful, [5] but her next, which began on 26 December 1943 and took her to the waters off North Africa, was. On 11 January 1944 the U-boat fired a T-5 homing torpedo at a corvette, missed, and was then hunted for the next 13 hours by escort ships equipped with depth charges and hedgehogs. About 4 February the U-boat approached Convoy ON 222, but was attacked by an unknown Allied aircraft. [6]

Fourth to sixth patrols

After being fitted with a Schnorchel underwater-breathing apparatus, the U-boat's next three patrols from March to June 1944 were short, from 3 to 13 days and uneventful. [2]

Seventh patrol

U-953 sailed on 24 June 1944 from Brest into the English Channel.

The Campaign in North-west Europe 1944-45 BU6378 The Campaign in North-west Europe 1944-45 BU6378.jpg
The Campaign in North-west Europe 1944-45 BU6378

Eighth to tenth patrols

Under her new commander, Oberleutnant zur See Herbert Werner, U-953 sailed from Brest on 12 August 1944, arriving at La Pallice on 19 August. [7]

On 31 August U-953 left La Pallice for Norway, sailing round the Atlantic coast of Ireland. She patrolled the entrance to North Channel for seven days, but has no success. Werner reports a fault on the submarine snorkel caused the patrol to be abandoned [8] and U-953 arrived at Bergen "unannounced" on 11 October. [9] [10]

Faults and a need for overhaul caused her to be sent to Germany, arriving at Flensburg on 25 October. She was not ready for further service until February 1945.

U-953 left Kiel on 4 February 1945, arriving at Kristiansand and then Bergen. On 21 February she left Bergen on an offensive patrol off the coast of Britain but, Werner reports, various faults culminating in a faulty torpedo tube door, forced a return once more. [11] U-953 arrived back in Bergen on 3 April 1945. [12]

Under a new commander, Oberleutnant zur See Erich Steinbrink, [1] she was moved from there to Trondheim on 6 April arriving three days later; there she remained until the German capitulation and she was surrendered to British forces. [13]

Wolfpacks

U-953 took part in seven wolfpacks, namely:

Fate

On 29 May 1945, U-953 sailed to Loch Ryan as a British war prize in August. After trials by the Royal Navy, the U-boat was laid up in Lisahally at the end of the year. On 4 June 1949, U-953 was sold to Clayton & Davie Ltd. of Dunston and broken up for scrap. [14]

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References

  1. 1 2 Helgason, Guðmundur. "The Type VIIC boat U-953". German U-boats of WWII - uboat.net. Retrieved 19 February 2010.
  2. 1 2 Helgason, Guðmundur. "War Patrols by German U-boat U-953". German U-boats of WWII - uboat.net. Retrieved 19 February 2010.
  3. 1 2 3 4 Gröner 1991, pp. 43–46.
  4. ↑ Helgason, Guðmundur. "Patrol of U-boat U-953 from 13 May 1943 to 22 Jul 1943". U-boat patrols - uboat.net. Retrieved 19 February 2010.
  5. ↑ Helgason, Guðmundur. "Patrol of U-boat U-953 from 2 Oct 1943 to 17 Nov 1943". U-boat patrols - uboat.net. Retrieved 19 February 2010.
  6. ↑ Helgason, Guðmundur. "Patrol of U-boat U-953 from 26 Dec 1943 to 20 Feb 1944". U-boat patrols - uboat.net. Retrieved 19 February 2010.
  7. ↑ Helgason, Guðmundur. "Patrol of German U-boat U-953 from 10 Aug 1944 to 19 Aug 1944". German U-boats of WWII - uboat.net. Retrieved 13 September 2015.
  8. ↑ Werner 1999, p. 265.
  9. ↑ Blair 1998, p. 618.
  10. ↑ Helgason, Guðmundur. "Patrol of German U-boat U-953 from 31 Aug 1944 to 11 Oct 1944". German U-boats of WWII - uboat.net. Retrieved 13 September 2015.
  11. ↑ Werner 1999, p. 294.
  12. ↑ Helgason, Guðmundur. "Patrol of German U-boat U-953 from 21 Feb 1945 to 3 Apr 1945". German U-boats of WWII - uboat.net. Retrieved 13 September 2015.
  13. ↑ Blair 1998, p. 818.
  14. ↑ Neistlé 2014, p. 94.

Sources

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