German submarine U-161 (1941)

	U-505, a typical Type IXC boat
History
Nazi Germany
Name	U-161
Ordered	25 September 1939
Builder	Deutsche Schiff und maschinenbau AG, Bremen
Yard number	700
Laid down	23 March 1940
Launched	1 March 1941
Commissioned	8 July 1941
Fate	Sunk on 27 September 1943
General characteristics
Class and type	Type 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;
Height	9.60 m (31 ft 6 in)
Draught	4.70 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	2 shafts; 2 × diesel engines ; 2 × electric motors ;
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 depth	230 m (750 ft)
Complement	4 officers, 44 enlisted
Armament	6 × torpedo tubes (4 bow, 2 stern); 22 × 53.3 cm (21 in) torpedoes ; 1 × 10.5 cm (4.1 in) SK C/32 deck gun (180 rounds); 1 × 3.7 cm (1.5 in) SK C/30 AA gun; 1 × twin 2 cm FlaK 30 AA guns;
Service record
Part of:	4th U-boat Flotilla ; 8 July – 31 December 1941; 2nd U-boat Flotilla ; 1 January 1942 – 27 September 1943;
Identification codes:	M 46 894
Commanders:	Kptlt. Hans-Ludwig Witt ; 8 July – 31 December 1941; Kptlt. Albrecht Achilles ; 1 January 1942 – 27 September 1943;
Operations:	6 patrols:; 1st patrol:; 3 – 15 January 1942; 2nd patrol:; 24 January – 2 April 1942; 3rd patrol:; 28 April – 7 August 1942; 4th patrol:; 19 September 1942 – 9 January 1943; 5th patrol:; 13 March – 7 June 1943; 6th patrol:; 8 August – 27 September 1943;
Victories:	12 merchant ships sunk ; (60,107 GRT); 1 warship sunk ; (1,130 tons); 1 merchant ship total loss ; (3,305 GRT); 5 merchant ships damaged ; (35,672 GRT); 1 warship damaged ; (5,450 tons);

Last updated March 20, 2024

German submarine U-161 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 23 March 1940 at the Deutsche Schiff und maschinenbau AG, Bremen yard as yard number 700. She was launched on 1 March 1941 and commissioned on 8 July under the command of Kapitänleutnant Hans-Ludwig Witt (Knight's Cross).

The U-boat's service began with training as part of the 4th U-boat Flotilla. She then moved to the 10th flotilla on 1 January 1942 for operations. She sank 12 ships, totalling 60,107 gross register tons (GRT); one warship of 1,130 tons and damaged five others, for 35,672 GRT. She also damaged one warship (5,450 tons) and caused one merchant vessel to be declared a total loss (3,305 GRT).

She was sunk by an American aircraft on 27 September 1943.

Design

German Type IXC submarines were slightly larger than the original Type IXBs. U-161 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.^[2] 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).^[2]

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).^[2] 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-161 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.^[2]

Service history

First and second patrols

The submarine's first patrol took her from Kiel on 3 January 1942, across the North Sea and into the Atlantic Ocean through the gap between the Faroe and Shetland Islands. She arrived at Lorient, in occupied France, on 3 May. She would be based at this Atlantic port for the rest of her career.

U-161's second sortie proved to be successful, damaging British Consul and Mokihana on 19 February 1942 while the ships rode at anchor in the Gulf of Paria off Port of Spain, Trinidad.^[3] She went on to sink ships such as Circe Shell, Lihue the petrol tanker Uniwaleco off St Vincent.

Then, daringly, she made her way at night through the narrow passage into Castries Harbour, St Lucia where she damaged the Lady Nelson and Umtata.^[4] One ship sunk by U-161, Sarniadoc, sank in 30 seconds after her boiler exploded. There were no survivors. On 15 March 1942, while en route alone from Curaçao, Netherlands West Indies to Antigua, British West Indies, the Speedwell-class USCGC Acacia, (formerly the U.S. Army mine planter General John P. Story transferred to the United States Lighthouse Service at no cost in 1922,^[5]) was sunk by gunfire from U-161 approximately 150 miles south of Port-au-Prince, Haiti. The entire crew of Acacia abandoned ship before she sank and all were rescued unscathed. She was the only U.S. tender sunk by enemy action during the war in the Caribbean.

Third patrol

The boat's third patrol took her past the Azores and Cape Verde Islands, to the Brazilian coast north of Fortaleza. She then followed that coastline north until she reached the Caribbean. On 16 June 1942 she stopped the sailing ship Neuva Altagracia with gunfire and sank the vessel with scuttling charges. She also attacked San Pablo while the ship was being unloaded in Puerto Limón, Costa Rica on 3 July. Although the ship sank, she was raised with the intention of repair; but she was declared a total loss and sunk as a target on 25 September.

She crossed the Atlantic in an easterly direction, but turned about and returned to the Caribbean. Having commenced the return leg to France, she encountered Fairport 500 nmi (930 km; 580 mi) north of St. Thomas, Virgin Islands on 16 July and sank her. The boat returned to Lorient on 7 August.

Fourth patrol

Her fourth foray was to west Africa. This patrol was her longest-113 days. She damaged the light cruiser HMS Phoebe six miles and 282° from Pointe Noire, French Equatorial Africa on 23 October 1942 and sank the West Humhaw 60 nmi (110 km; 69 mi) southwest of Takoradi in Ghana on 8 November.

Fifth patrol

The boat's fifth patrol involved another Atlantic crossing and sinking a second sailing ship, Angelus, north of Bermuda, again with gunfire. Ten survivors abandoned the vessel; only two were still alive when their lifeboat was discovered.

Sixth patrol and loss

The U-boat departed Lorient for the last time on 8 August 1943. She rendezvoused with the Japanese submarine I-8 on 20 August to transfer two radio technicians and a Metox radar detector for installation on the Japanese submarine. Returning to the Brazilian coast, she sank St. Usk on 20 September and Itapagé on the 26th. She was sunk with all hands (53 men), on 27 September 1943 by an American PBM Mariner aircraft of VP-74 in the South Atlantic.

Summary of raiding history

Date	Name	Nationality	Tonnage^{[Note 1]}	Fate^[6]
19 February 1942	British Consul	United Kingdom	6,940	Damaged
19 February 1942	Mokihana	United States	7,460	Damaged
21 February 1942	Circe Shell	United Kingdom	8,207	Sunk
23 February 1942	Lihue	United States	7,001	Sunk
7 March 1942	Uniwaleco	South Africa	9,755	Sunk
10 March 1942	RMS Lady Nelson	Canada	7,970	Damaged
10 March 1942	Umtata	United Kingdom	8,141	Damaged
14 March 1942	Sarniadoc	Canada	1,940	Sunk
15 March 1942	USCGC Acacia	United States Coast Guard	1,130	Sunk
16 June 1942	Nueva Altagracia	Dominican Republic	30	Sunk
3 July 1942	San Pablo	Panama	3,305	Total loss
16 July 1942	Fairport	United States	6,165	Sunk
23 October 1942	HMS Phoebe	Royal Navy	5,450	Damaged
8 November 1942	Benalder	United Kingdom	5,161	Damaged
8 November 1942	West Humhaw	United States	5,527	Sunk
29 November 1942	Tjileboet	Netherlands	5,760	Sunk
12 December 1942	Ripley	United Kingdom	4,997	Sunk
19 May 1943	Angelus	Canada	255	Sunk
20 September 1943	St. Usk	United Kingdom	5,472	Sunk
26 September 1943	Itapagé	Brazil	4,998	Sunk

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References

Notes

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

Citations

↑ Kemp 1999, p. 147.
1 2 3 4 Gröner 1991, p. 68.
↑ Kelshall, Gaylord: The U Boat War in the Caribbean. pub by The Naval Institute Press
↑ Harmsen, Jolien; Ellis, Guy; Devaux, Robert (2014). A History of St Lucia. Vieux Fort: Lighthouse Road. p. 275. ISBN 9789769534001.
↑ Grover 1987, p. 122.
↑ Helgason, Guðmundur. "Ships hit by U-161". German U-boats of WWII – uboat.net. Retrieved 3 October 2014.

Bibliography

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.
Grover, David (1987). U.S. Army Ships and Watercraft of World War II. Naval Institute Press. ISBN 0-87021-766-6. LCCN 87015514.
Kemp, Paul (1999). U-Boats Destroyed – German Submarine Losses in the World Wars. London: Arms & Armour. ISBN 1-85409-515-3.

External links

Helgason, Guðmundur. "The Type IX boat U-161". German U-boats of WWII – uboat.net. Retrieved 7 December 2014.
Hofmann, Markus. "U 161". Deutsche U-Boote 1935-1945 – u-boot-archiv.de (in German). Retrieved 7 December 2014.

12°30′S35°35′W / 12.500°S 35.583°W / -12.500; -35.583

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Text is available under the CC BY-SA 4.0 license; additional terms may apply.
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[tonnage-6] Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

[FOOTNOTEKemp1999147-1] Kemp 1999, p. 147.

[FOOTNOTEGröner199168-2] 1 2 3 4 Gröner 1991, p. 68.

[3] Kelshall, Gaylord: The U Boat War in the Caribbean. pub by The Naval Institute Press

[Harmsen-4] Harmsen, Jolien; Ellis, Guy; Devaux, Robert (2014). A History of St Lucia. Vieux Fort: Lighthouse Road. p. 275. ISBN 9789769534001.

[FOOTNOTEGrover1987122-5] Grover 1987, p. 122.

[7] Helgason, Guðmundur. "Ships hit by U-161". German U-boats of WWII – uboat.net. Retrieved 3 October 2014.

[1]

[2]

[3]

[4]

[5]

[Note 1]

[6]

v t e German Type IXC submarine
U-66 U-67 U-68 U-125 U-126 U-127 U-128 U-129 U-130 U-131 U-153 U-154 U-155 U-156 U-157 U-158 U-159 U-160 U-161 U-162 U-163 U-164 U-165 U-166 U-171 U-172 U-173 U-174 U-175 U-176 U-501 U-502 U-503 U-504 U-505 U-506 U-507 U-508 U-509 U-510 U-511 U-512 U-513 U-514 U-515 U-516 U-517 U-518 U-519 U-520 U-521 U-522 U-523 U-524
Preceded by: Type IXB Followed by: Type IXC/40
List of U-boats of Germany

v t e Shipwrecks and maritime incidents in September 1943
Shipwrecks	3 Sep: I-25 4 Sep: USS LCI(L)-339 5 Sep: USS YP-279 7 Sep: Maloja, Velella 8 Sep: Calitea II , Etna , U-983, Vesuvio 9 Sep: Antonio Bajamonti , Cattaro, Conte Verde, Ermanno Carlotto, FR 22 , FR 118 , Lepanto, USS Nauset, Roma, Taranto 10 Sep: HMS Abdiel, Argo, Piero Foscari 11 Sep: Conte di Savoia, Pegaso, USS Rowan 12 Sep: Ametista, USS Navajo, U-617 13 Sep: Terra Nova 14 Sep: Katsonis, Newfoundland 15 Sep: Ro-101 16 Sep: Heisternest 18 Sep: Francesco Rismondo 19 Sep: Kansai Maru , U-341 20 Sep: HMCS St. Croix, U-338, U-346 21 Sep: HMS Polyanthus 22 Sep: U-229 23 Sep: Gaetano Donizetti 25 Sep: USS Skill 26 Sep: HMS Intrepid, Vasilissa Olga 27 Sep: Ardena, U-161, U-221 28 Sep: USS Cisco 30 Sep: Sanct Svithun Unknown date: HMS Gallant, USS Grayling, I-20, I-182, USS LCT-209, K-1, USS Pompano, U-669
Other incidents	7 Sep: U-760 8 Sep: USS Bluefish, U-988 9 Sep: Giuseppe Finzi, USS Peto 10 Sep: I-2 11 Sep: USS Savannah 13 Sep: HMHS Newfoundland, HMS Uganda 14 Sep: HMS Warspite 16 Sep: USS Pompon 19 Sep: Tango Maru 23 Sep: Kulmerland
1942 1943 1944 August 1943 October 1943

History
U-505, a typical Type IXC boat
Nazi Germany
Name	U-161
Ordered	25 September 1939
Builder	Deutsche Schiff und maschinenbau AG, Bremen
Yard number	700
Laid down	23 March 1940
Launched	1 March 1941
Commissioned	8 July 1941
Fate	Sunk on 27 September 1943^[1]
General characteristics
Class and type	Type 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
Height	9.60 m (31 ft 6 in)
Draught	4.70 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	2 shafts 2 × diesel engines 2 × electric motors
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 depth	230 m (750 ft)
Complement	4 officers, 44 enlisted
Armament	6 × torpedo tubes (4 bow, 2 stern) 22 × 53.3 cm (21 in) torpedoes 1 × 10.5 cm (4.1 in) SK C/32 deck gun (180 rounds) 1 × 3.7 cm (1.5 in) SK C/30 AA gun 1 × twin 2 cm FlaK 30 AA guns
Service record
Part of:	4th U-boat Flotilla 8 July – 31 December 1941 2nd U-boat Flotilla 1 January 1942 – 27 September 1943
Identification codes:	M 46 894
Commanders:	Kptlt. Hans-Ludwig Witt 8 July – 31 December 1941 Kptlt. Albrecht Achilles 1 January 1942 – 27 September 1943
Operations:	6 patrols: 1st patrol: 3 – 15 January 1942 2nd patrol: 24 January – 2 April 1942 3rd patrol: 28 April – 7 August 1942 4th patrol: 19 September 1942 – 9 January 1943 5th patrol: 13 March – 7 June 1943 6th patrol: 8 August – 27 September 1943
Victories:	12 merchant ships sunk (60,107 GRT) 1 warship sunk (1,130 tons) 1 merchant ship total loss (3,305 GRT) 5 merchant ships damaged (35,672 GRT) 1 warship damaged (5,450 tons)