|Ordered:||9 October 1939|
|Builder:||Flensburger Schiffbau-Gesellschaft, Flensburg|
|Laid down:||15 April 1940|
|Launched:||10 January 1942|
|Commissioned:||22 April 1942|
|Fate:||Sunk by British warships in the Barents Sea August 1944|
|Class and type:||Type VIIC submarine|
|Height:||9.60 m (31 ft 6 in)|
|Draught:||4.74 m (15 ft 7 in)|
|Complement:||4 officers, 40–56 enlisted|
She carried out 11 patrols before being sunk in the Barents Sea by British warships in 1944.
She sank one ship and one warship, damaged a commercial vessel and caused a warship to be declared a total loss.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-354 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 AEG GU 460/8–27 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-354 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.
The submarine was laid down on 15 April 1940 at the Flensburger Schiffbau-Gesellschaft yard at Flensburg as yard number 473, launched on 10 January 1942 and commissioned on 22 April under the command of Kapitänleutnant Karl-Heinz Herbschleb.
U-354 served with the 5th U-boat Flotilla, for training and then with the 1st flotilla for operations from 1 October 1942. She came under the command of the 11th flotilla on 15 October and was reassigned to the 13th flotilla on 1 June 1943; she stayed with that organization until her sinking.
1st and 2nd patrols
Her first patrol began with her departure from Skjomenfjord on 29 October 1942. On 4 November she sank the William Clark off Jan Mayen Island. This ship had already possibly been damaged by bombs from Ju 88 aircraft. A crewman was lost overboard on the 11th. The boat put into Narvik on the 30th.
The submarine's second foray over Christmas and New year's Eve took her from Narvik, as far as Bear Island and back to Narvik.
3rd and 4th patrols
U-354's third patrol was marred by the suicide of Maschinenmaat Helmut Richter on 12 March 1943.
Her fourth sortie took the boat north of Bear Island; she returned to Narvik on 12 June 1943.
It was during this patrol that she attacked and damaged the Soviet Petrovskij in the eastern Kara Sea on 27 August 1943.
This patrol was split in two: the first part, which was rather brief, was over 22 and 23 October 1943. The second part was longer; between 25 October and 6 December. The boat finished up in Hammerfest in the far north of Norway.
7th, 8th and 9th patrols
U-354 continued to patrol northern waters, without success.
11th patrol and loss
U-354 sank HMS Bickerton with a torpedo intended as a 'coup de grâce' for the escort carrier HMS Nabob (which was subsequently declared to be a total loss), northwest of the North Cape on 22 August 1944.
U-354 took part in nine wolfpacks, namely.
- Eisbär (27 March – 1 April 1943)
- Wiking (4 August – 15 September 1943)
- Eisenbart (1 November – 4 December 1943)
- Eisenbart (8–28 December 1943)
- Boreas (9–10 March 1944)
- Hammer (10 March – 5 April 1944)
- Donner (5–11 April 1944)
- Donner & Keil (20 April – 2 May 1944)
- Trutz (22–24 August 1944)
Previously recorded fate
Summary of raiding history
|4 November 1942||William Clark||United States||7,176||Sunk|
|27 August 1943||Petrovskij||Soviet Union||3,771||Damaged|
|22 August 1944||HMS Bickerton||Royal Navy||1,300||Sunk|
|22 August 1944||HMS Nabob||Royal Navy||11,420||Total loss|
- Kemp 1999, p. 214.
- Helgason, Guðmundur. "The Type VIIC boat U-354". German U-boats of WWII - uboat.net. Retrieved 25 August 2012.
- Helgason, Guðmundur. "War Patrols by German U-boat U-348". German U-boats of WWII - uboat.net. Retrieved 25 August 2012.
- Gröner 1991, pp. 43-46.
- The Times Atlas of the World - Third edition, revised 1995, ISBN 0 7230 0809 4, p. 22
- Helgason, Guðmundur. "Ships hit by U-354". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.
- 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). 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. 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.
- Helgason, Guðmundur. "The Type VIIC boat U-354". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.
- Hofmann, Markus. "U 354". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 26 December 2014.