German submarine U-454

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History
War ensign of Germany (1938-1945).svg Nazi Germany
NameU-454
Ordered20 October 1939
Builder Deutsche Werke, Kiel
Yard number285
Laid down4 July 1940
Launched30 April 1941
Commissioned24 July 1941
FateSunk in the Bay of Biscay by an Australian aircraft on 1 August 1943 [1]
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 [2]
Part of:
Identification codes: M 45 537
Commanders:
  • Kptlt. Burkhard Hackländer
  • 24 July 1941 – 1 August 1943
Operations:
  • 10 patrols:
  • 1st patrol:
  • 25 December 1941 – 20 January 1942
  • 2nd patrol:
  • 27 January – 3 February 1942
  • 3rd patrol:
  • 24 February – 15 March 1942
  • 4th patrol:
  • 24 March – 2 April 1942
  • 5th patrol:
  • a. 8 – 20 April 1942
  • b. 23 – 29 April 1942
  • c. 30 April – 3 May 1942
  • 6th patrol:
  • a. 4 July – 17 August 1942
  • b. 15 – 16 September 1942
  • 7th patrol:
  • 26 September – 7 December 1942
  • 8th patrol:
  • 18 January – 8 March 1943
  • 9th patrol:
  • 17 April – 23 May 1943
  • 10th patrol:
  • 26 July – 1 August 1943
Victories:
  • 1 merchant ship sunk
    (557  GRT)
  • 1 warship sunk
    (1,870 tons)
  • 1 merchant ship damaged
    (5,395  GRT)

German submarine U-454 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Contents

She carried out ten patrols. She sank two ships and damaged one more.

She was sunk in the Bay of Biscay by an Australian aircraft on 1 August 1943. [1]

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-454 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 Siemens-Schuckert GU 343/38–8 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-454 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 a 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty. [3]

Service history

The submarine was laid down on 4 July 1940 in the Deutsche Werke, Kiel as yard number 285, launched on 30 April 1941 and commissioned on 24 July under the command of Kapitänleutnant Burkhard Hackländer.

She served with the 5th U-boat Flotilla from 24 July 1941 for training and the 7th flotilla from 1 November for operations.

First patrol

U-454's first patrol was preceded by the short journey from Kiel in Germany to Kirkenes in Norway not far from the border with Russia. The patrol itself commenced with her departure from Kirkenes on 25 December 1941.

She sank the Soviet trawler RT-68 Enise on 17 January 1942 78 nautical miles (144 km; 90 mi) north of Kanin Nos. That same day, she damaged the British registered Harmatis and sank the British destroyer HMS Matabele. The warship was hit in the stern by a torpedo, which caused her magazines to explode; the vessel sank in two minutes. The loss of life was made worse by the detonation of her depth charges and men freezing to death in the icy water.

Second and third patrols

Her second sortie terminated in Trondheim on 3 February 1942 and had covered the Barents Sea.

The submarine's third patrol was marred by the loss overboard of Matrosengefreiter Josef Kauerlos on 26 February 1942.

Fourth and fifth patrols

The boat's fourth patrol was also carried out in the Barents Sea.

Her fifth foray was toward Bear Island between 8 and 20 April 1942.

Sixth patrol

Two more short trips were carried out from Kirkenes and Bergen and finished in Kiel, from where she proceeded via the gap separating Iceland from the Faroe Islands into the Atlantic Ocean. She went as far west as Newfoundland before arriving at St. Nazaire in occupied France on 17 August 1942.

Seventh and eighth patrols

Patrol number seven started and finished in St. Nazaire and at 73 days, was the boat's longest.

Her eighth sortie was relatively uneventful; the area negotiated was west of Ireland and north of the Azores.

Ninth patrol

U-454 left St. Nazaire on 17 April 1943. On 10 May, she encountered a Fairey Swordfish from the escort carrier HMS Biter. No damage was incurred, but the U-boat was forced to dive. She returned to France, but this time to La Pallice, on 23 May.

Tenth patrol and loss

U-454 was sunk in the Bay of Biscay by depth charges dropped by an Australian Sunderland flying boat of No. 10 Squadron RAAF on 1 August 1943. The aircraft crashed, the U-boat was on her way to the Mediterranean when she met her fate. [4]

Thirty-two men died; there were 14 survivors.

Wolfpacks

U-454 took part in 19 wolfpacks, namely:

Summary of raiding history

DateShip NameNationalityTonnage [Note 1] Fate [5]
17 January 1942 Harmatris Civil Ensign of the United Kingdom.svg  United Kingdom 5,395Damaged
17 January 1942 HMS Matabele Naval Ensign of the United Kingdom.svg  Royal Navy 1,870Sunk
17 January 1942 RT-68 Enisej Naval Ensign of the Soviet Union (1950-1991).svg  Soviet Navy 557Sunk

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References

Notes

  1. ↑ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

Citations

  1. 1 2 Kemp 1999, p. 138.
  2. ↑ Helgason, Guðmundur. "The Type VIIC boat U-454". German U-boats of WWII – uboat.net. Retrieved 23 September 2012.
  3. 1 2 3 4 Gröner 1991, pp. 43–46.
  4. ↑ Paterson, Lawrence – U-Boats in the Mediterranean 1941-1944, 2007, Chatham Publishing, ISBN   9781861762900, p. 146
  5. ↑ Helgason, Guðmundur. "Ships hit by U-454". German U-boats of WWII – uboat.net. Retrieved 26 December 2014.

Bibliography

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