German submarine U-604 – Wikipedia

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German World War II submarine

History
Nazi Germany
Name U-604
Ordered 22 May 1940
Builder Blohm & Voss, Hamburg
Yard number 580
Laid down 27 February 1941
Launched 16 November 1941
Commissioned 8 January 1942
Fate Scuttled on 11 August 1943 at position 04°30′S 21°20′W / 4.500°S 21.333°W / -4.500; -21.333 in the South Atlantic after being depth charged by two US aircraft, a Ventura and a Liberator.
General characteristics
Class and type Type VIIC submarine
Displacement
  • 769 tonnes (757 long tons) surfaced
  • 871 t (857 long tons) submerged
Length
Beam
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Height 9.60 m (31 ft 6 in)
Draught 4.74 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)
Complement 4 officers, 40–56 enlisted
Armament
Service record[1]
Part of:
Commanders:
Operations:
  • 6 patrols:
  • 1st patrol:
  • 4 August – 8 September 1942
  • 2nd patrol:
  • 14 October – 5 November 1942
  • 3rd patrol:
  • 26 November – 31 December 1942
  • 4th patrol:
  • 8 February – 9 March 1943
  • 5th patrol:
  • 22 – 26 April 1943
  • 6th patrol:
  • 24 June – 11 August 1943
Victories: 6 merchant ships sunk
(39,891 GRT)

German submarine U-604 was a Type VIIC U-boat built for Nazi Germany’s Kriegsmarine for service during World War II.
She was laid down on 27 February 1941 by Blohm & Voss in Hamburg as yard number 580, launched on 16 November 1941 and commissioned on 8 January 1942 under Kapitänleutnant Horst Höltring (German Cross in Gold).

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-604 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. 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).

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). 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-604 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.

Service history[edit]

The boat’s service began on 8 January 1942 for training as part of the 5th U-boat Flotilla. After training was completed she transferred to the 9th flotilla on 1 August 1942 for active service.

In 6 patrols she sank 6 ships for a total of 39,891 gross register tons (GRT).

Wolfpacks[edit]

U-604 under attack of the VB-129.

She took part in five wolfpacks, namely:

  • Vorwärts (25 August – 1 September 1942)
  • Streitaxt (20 – 31 October 1942)
  • Draufgänger (1 – 11 December 1942)
  • Ungestüm (11 – 22 December 1942)
  • Knappen (19 – 25 February 1943)

Fate[edit]

She was scuttled on 11 August 1943 at position 04°30′S 21°20′W / 4.500°S 21.333°W / -4.500; -21.333 in the South Atlantic after being depth charged by two US aircraft, a Ventura and a Liberator. Her crew was rescued by U-185.

Summary of raiding history[edit]

References[edit]

Bibliography[edit]

  • Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
  • Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
  • Edwards, Bernard (1996). Dönitz and the Wolf Packs – The U-Boats at War. London, UK: Cassell Military Classics. pp. 104, 117, 119, 124, 159. ISBN 0-304-35203-9.
  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

External links[edit]