German submarine U-618

Last updated
History
War ensign of Germany (1938-1945).svg Nazi Germany
NameU-618
Ordered15 August 1940
Builder Blohm & Voss, Hamburg
Yard number594
Laid down29 May 1941
Launched20 February 1942
Commissioned16 April 1942
FateSunk on 14 August 1944 in the North Atlantic in position 47°22′N04°39′W / 47.367°N 4.650°W / 47.367; -4.650 , by depth charges from HMS Duckworth, HMS Essington and RAF Liberator.
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]
Part of:
Identification codes: M 46 602
Commanders:
  • Oblt.z.S. / Kptlt. Kurt Baberg
  • 16 April 1942 – 15 April 1944
  • Oblt.z.S. Erich Faust
  • 16 April – 14 August 1944
Operations:
  • 10 patrols:
  • 1st patrol:
  • 1 September – 28 October 1942
  • 2nd patrol:
  • 25 November 1942 – 18 January 1943
  • 3rd patrol:
  • 21 February – 7 May 1943
  • 4th patrol:
  • 8 June – 5 September 1943
  • 5th patrol:
  • 11 November 1943 – 4 January 1944
  • 6th patrol:
  • 23 February – 8 April 1944
  • 7th patrol:
  • 25 May 1944
  • 8th patrol:
  • 26 – 30 July 1944
  • 9th patrol:
  • 2 – 4 August 1944
  • 10th patrol:
  • 11 – 14 August 1944
Victories: 3 merchant ships sunk
(15,788  GRT)

German submarine U-618 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 29 May 1941 by Blohm & Voss, Hamburg as yard number 594, launched on 20 February 1942 and commissioned on 16 April 1942 under Oberleutnant zur See Kurt Baberg.

Contents

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-618 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. [2] 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). [2]

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). [2] 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-618 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. [2]

Service history

The boat's career began with training at 5th U-boat Flotilla on 16 April 1942, followed by active service on 1 September 1942 as part of the 7th Flotilla for the remainder of her service.

In ten patrols she sank three merchant ships, for a total of 15,788  gross register tons  (GRT).

1943

On 20 November 1943, U-618 shot down a RAF Liberator bomber of 53 Squadron near to Convoy SL 139.

On 30 December 1943, U-618 rescued 21 survivors from German destroyer Z27. [3] and its escort. Earlier U-505 had rescued 34, [4] and MV Kerlogue (Ireland) had rescued 164.

1944

On 19 March 1944, U-618, while trying to enter the Mediterranean Sea, sustained a week long sustained Allied attack from both aircraft and surface ships before being forced to return to France with heavy battle damage.

On 6 April 1944, U-618 was attacked by a RCAF Liberator bomber. She was able to return fire and damage the aircraft sufficiently that the air attack was broken off.

On 30 July 1944, U-618 shot down a RAF Wellington bomber in the Bay of Biscay. All six of the aircrew were killed when the bomber crashed into the sea.

Fate

U-618 was sunk on 14 August 1944 in the North Atlantic in position 47°22′N04°39′W / 47.367°N 4.650°W / 47.367; -4.650 , by depth charges from HMS Duckworth, HMS Essington and RAF Liberator. All hands were lost.

Wolfpacks

U-618 took part in 18 wolfpacks, namely:

Summary of raiding history

DateShip NameNationalityTonnage
(GRT)		Fate [5]
14 October 1942 Empire Mersey Civil Ensign of the United Kingdom.svg  United Kingdom 5,791Sunk
18 October 1942 Angelina Flag of the United States (1912-1959).svg  United States 4,772Sunk
2 July 1943 Empire Kohinoor Civil Ensign of the United Kingdom.svg  United Kingdom 5,225Sunk

See also

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References

  1. ↑ Helgason, Guðmundur. "The Type VIIC boat U-618". German U-boats of WWII - uboat.net. Retrieved 11 July 2014.
  2. 1 2 3 4 Gröner 1991, pp. 43–46.
  3. ↑ Helgason, Guðmundur. "General notes on this boat". U-618. Uboat.net. Retrieved 12 November 2015.
  4. ↑ Helgason, Guðmundur. "Patrol info for U-505 (Eleventh patrol)". U-Boat Patrols. Uboat.net. Retrieved 12 November 2015.
  5. ↑ Helgason, Guðmundur. "Ships hit by U-618". German U-boats of WWII - uboat.net. Retrieved 11 July 2014.

Bibliography

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