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German submarine U-154 (1941)

Coordinates: 34°00′N 19°18′W / 34.000°N 19.300°W / 34.000; -19.300
From Wikipedia, the free encyclopedia
For other ships with the same name, see German submarine U-154.
U-505, a typical Type IXC boat
History
Nazi Germany
NameU-154
Ordered25 September 1939
BuilderDeSchiMAG AG Weser, Bremen
Yard number996
Laid down21 September 1940
Launched21 April 1941
Commissioned2 August 1941
FateSunk on 3 July 1944[1]
General characteristics
Class and typeType IXC submarine
Displacement
  • 1,120 t (1,100 long tons) surfaced
  • 1,232 t (1,213 long tons) submerged
Length
  • 76.76 m (251 ft 10 in) o/a
  • 58.75 m (192 ft 9 in) pressure hull
Beam
  • 6.76 m (22 ft 2 in) o/a
  • 4.40 m (14 ft 5 in) pressure hull
Height9.60 m (31 ft 6 in)
Draught4.70 m (15 ft 5 in)
Installed power
  • 4,400 PS (3,200 kW; 4,300 bhp) (diesels)
  • 1,000 PS (740 kW; 990 shp) (electric)
Propulsion
Speed
  • 18.3 knots (33.9 km/h; 21.1 mph) surfaced
  • 7.3 knots (13.5 km/h; 8.4 mph) submerged
Range
  • 13,450 nmi (24,910 km; 15,480 mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 64 nmi (119 km; 74 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth230 m (750 ft)
Complement4 officers, 44 enlisted
Armament
Service record
Part of:
Identification codes: M 45 897
Commanders:
  • K.Kapt. Walther Kölle
  • 2 August – 7 October 1942
  • K.Kapt. Heinrich Schuh
  • 7 October 1942 – 8 February 1943
  • Oblt.z.S. Oskar-Heinz Kusch
  • 8 February 1943 – 21 January 1944
  • Oblt.z.S. Gerth Cemeiner
  • 22 January – 3 July 1944
Operations:
  • 8 patrols:
  • 1st patrol:
  • 7 February – 1 March 1942
  • 2nd patrol:
  • 11 March – 9 May 1942
  • 3rd patrol:
  • 4 June – 23 August 1942
  • 4th patrol:
  • 12 October 1942 – 7 January 1943
  • 5th patrol:
  • a. 20 March – 6 July 1943
  • b. 23 – 24 September 1943
  • 6th patrol:
  • 2 October – 20 December 1943
  • 7th patrol:
  • 31 January – 28 April 1944
  • 8th patrol:
  • 20 June – 3 July 1944
Victories:
  • 10 merchant ships sunk
    (49,288 GRT)
  • 1 merchant ship total loss
    (8,166 GRT)
  • 2 merchant ships damaged
    (15,771 GRT)

German submarine U-154 was a Type IXC U-boat of Nazi Germany's Kriegsmarine built for service during World War II. The keel for this boat was laid down on 21 September 1940 at the DeSchiMAG AG Weser yard in Bremen, Germany as yard number 996. She was launched on 21 April 1941 and commissioned on 2 August under the command of Korvettenkapitän Walther Kölle.

The submarine began her service life with training as part of the 4th U-boat Flotilla; moving on to the 2nd flotilla for operations. She conducted eight patrols, sinking ten ships.

Although it was believed to be sunk by the Colombian Destroyer ARC Caldas during a short encounter near San Andrés Island in 1944,[2] the U-154 escaped without damage. Using spare oil and some damaged torpedo tubes, the Germans were able to fake the oil slick and wreckage.

U-154 was sunk by the US destroyers USS Inch and Frost northwest of Madeira on 3 July 1944.

Design

[edit]

German Type IXC submarines were slightly larger than the original Type IXBs. U-154 had a displacement of 1,120 tonnes (1,100 long tons) when at the surface and 1,232 tonnes (1,213 long tons) while submerged.[3] The U-boat had a total length of 76.76 m (251 ft 10 in), a pressure hull length of 58.75 m (192 ft 9 in), a beam of 6.76 m (22 ft 2 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.70 m (15 ft 5 in). The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of 4,400 metric horsepower (3,240 kW; 4,340 shp) for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1,000 metric horsepower (740 kW; 990 shp) for use while submerged. She had two shafts and two 1.92 m (6 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 18.3 knots (33.9 km/h; 21.1 mph) and a maximum submerged speed of 7.3 knots (13.5 km/h; 8.4 mph).[3] When submerged, the boat could operate for 63 nautical miles (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 13,450 nautical miles (24,910 km; 15,480 mi) at 10 knots (19 km/h; 12 mph). U-154 was fitted with six 53.3 cm (21 in) torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one 10.5 cm (4.13 in) SK C/32 naval gun, 180 rounds, and a 3.7 cm (1.5 in) SK C/30 as well as a 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of forty-eight.[3]

Service history

[edit]

First patrol

[edit]

The boat's first patrol began with her departure from Kiel on 7 February 1942. She headed for the Atlantic Ocean west of Ireland via the gap between the Faroe and Shetland Islands. She docked at Lorient in occupied France, on 1 March.

Second patrol

[edit]

For her second sortie, she sailed to the Caribbean, sinking Como Rico on 4 April 1942, about 225 nmi (417 km; 259 mi) north of St. Juan, in Puerto Rico. Her success continued with the sinking of Catahoula, Delvalle, Empire Amethyst and Vineland, all near Haiti and the Dominican Republic.

Third, fourth and fifth patrols

[edit]

Her third patrol saw her cross the Atlantic once more. She sank Tillie Lykes on 28 June 1942, about 100 nmi (190 km; 120 mi) south of Santo Domingo in the Dominican Republic and Lalita, using the deck gun, in the Yucatán Channel on 6 July.

One of the boat's victims on this, her fourth patrol, was Nurmahal. She was sunk on 9 November 1942 300 nmi (560 km; 350 mi) east of Martinique "in less than thirty seconds."[4] Another was Tower Grange, sunk 250 nmi (460 km; 290 mi) off Cayenne in French Guiana.

Having made the short trip from Lorient to Brest, the submarine's fifth foray was her longest (109 days) and second most successful. Amongst many others, she attacked Florida. Although the ship had her back broken on 28 May 1943, she was eventually repaired.

Sixth, seventh and eighth patrols and loss

[edit]

She departed on patrol number six on 2 October 1943. U-154 was attacked by an unidentified PBY Catalina flying boat on 3 November; she was also twice attacked on the 22nd. None caused any damage. The boat returned to Lorient on 20 December.

She was then attacked on 13 March 1944, possibly by the US Navy patrol boat USS PC-469 north of the Panama Canal; only minor damage was sustained. U-154 was also engaged on 29 March by the Colombian Navy destroyer ARC Caldas. She returned to France, again to Lorient, on 28 April 1944.

U-154 was sunk by the US destroyers USS Inch and Frost northwest of Madeira on 3 July 1944.

Wolfpacks

[edit]

U-154 took part in one wolfpack, namely:

  • Südwärts (24 – 26 October 1942)

Postscript

[edit]

Oblt.z.S. Oskar Kusch, who had commanded the boat in 1943 and the first month of 1944 and successfully attacked three ships, was court-martialled and shot in May 1944, having been reported by his first officer, Ulrich Abel and his chief engineer, Kurt Druschel for Wehrkraftzersetzung (sedition and defeatism).[5] Kusch had removed Hitlers portrait from the boat and had repeatedly called him an idiot and described the Nazis as tapeworms.[6] Ironically Ulrich Abel, who subsequently gained his own command on U-193 was killed before Kusch's murder, when U-193 was sunk in April 1944 on its first patrol under his command. Druschel was killed when U-154 was sunk on 3 July 1944. It was not until the 1990s that Kusch's legal record was wiped clean and a memorial to his memory was erected, Oskar-Kusch-Strasse, a street in Kiel, Germany is named after him.

Summary of raiding history

[edit]
Date Name Nationality Tonnage
(GRT) 		Fate[4]
4 April 1942 Comol Rico  United States 5,034 Sunk
5 April 1942 Catahoula  United States 5,030 Sunk
12 April 1942 Delvalle  United States 5,032 Sunk
13 April 1942 Empire Amethyst  United Kingdom 8,032 Sunk
20 April 1942 Vineland  Canada 5,587 Sunk
28 June 1942 Tillie Lykes  United States 2,572 Sunk
6 July 1942 Lalita  Panama 65 Sunk
8 November 1942 D'Entrecasteaux  United Kingdom 7,291 Sunk
9 November 1942 Nurmahal  United Kingdom 5,419 Sunk
18 November 1942 Tower Grange  United Kingdom 5,226 Sunk
28 May 1943 Cardinal Gibbons  United States 7,191 Damaged
28 May 1943 Florida  United States 8,580 Damaged
28 May 1943 John Worthington  United States 8,166 Total loss

References

[edit]
  1. ^ Kemp 1999, pp. 200–1.
  2. ^ Tiempo, Casa Editorial El (22 October 1991). "CLAVE 1944 RC CALDAS HUNDE SUBMARINO NAZI". El Tiempo (in Spanish). Retrieved 22 September 2020.
  3. ^ a b c d Gröner 1991, p. 68.
  4. ^ a b Helgason, Guðmundur. "Ships hit by U-154". German U-boats of World War II – uboat.net. Retrieved 7 December 2014.
  5. ^ Sharpe 1998 pp.53–54
  6. ^ Kruecken, Stefan (20 May 2021). "»U-154« unter Oskar Kusch: Der Aufstand des U-Boot-Kommandanten". Der Spiegel (in German). Retrieved 21 May 2021.

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.
  • 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.
  • Kemp, Paul (1999). U-Boats Destroyed – German Submarine Losses in the World Wars. London: Arms & Armour. ISBN 1-85409-515-3.
  • Sharpe, Peter (1998). U-Boat Fact File. Earl Shilton: Midland Publishing. ISBN 1-85780-072-9.
  • Rust, Eric C. (2020). U-Boat Commander Oskar Kusch: Anatomy of a Nazi-era Betrayal and Judicial Murder. Annapolis, Maryland: Naval Institute Press. ISBN 978-1682475140.
[edit]
  • Helgason, Guðmundur. "The Type IXC boat U-154". German U-boats of World War II – uboat.net. Retrieved 7 December 2014.
  • Hofmann, Markus. "U 154". Deutsche U-Boote 1935–1945 – u-boot-archiv.de (in German). Retrieved 7 December 2014.

34°00′N 19°18′W / 34.000°N 19.300°W / 34.000; -19.300

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