|Ordered:||26 October 1939|
|Builder:||Flensburger Schiffbau-Gesellschaft, Flensburg|
|Laid down:||4 May 1940|
|Launched:||5 July 1941|
|Commissioned:||29 October 1941|
|Status:||Missing since 4 April 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|
|Victories:||one commercial ship sunk (5,082 GRT)|
German submarine U-355 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down in May 1940 at the Flensburger Schiffbau-Gesellschaft yard at Flensburg, launched in July 1941, and commissioned in October under the command of Kapitänleutnant Günter La Baume. After training with the 5th U-boat Flotilla, U-355 was transferred to the 11th U-boat Flotilla, based at Bergen in Norway, for front-line service from 1 July 1942. The boat went missing on 1 April 1944 while on patrol, and was never heard from again.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-355 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-355 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.
U-355 was ordered by the Kriegsmarine on 26 October 1939. She was laid down about six months later at the Flensburger Schiffbau-Gesellschaft yard at Flensburg, on 4 May 1940. Just over a year and a month later, U-355 was launched on 5 July 1941. She was formally commissioned later that year on 29 October 1941.
U-355 sailed from Kiel on 1 June 1942, arriving at Skjomenfjord, near Narvik, six days later. She sailed on her first combat patrol ten days later, on 16 June, and headed out into the Barents Sea.
There, on 7 July 1942, she sank the 5,082 ton British merchant ship SS Hartlebury, dispersed from Convoy PQ 17, en route to Arkhangelsk, carrying six vehicles, 36 tanks, seven aircraft and 2,409 tons of military stores. The ship, hit by three torpedoes, sank within 10 minutes around 17 miles west of Novaya Zemlya. Of the crew, 29 men, seven gunners, and two naval signalmen were killed. The master and 12 men landed at Pomorski Bay, Novaya Zemlya. Another seven survivors took shelter on the American merchant ship SS Winston-Salem, (also of PQ 17), which had run aground and been abandoned on North Gusini Shoal, Novaya Zemlya, and were later rescued by a Soviet survey ship. The U-boat returned to Narvik on 12 July after 27 days at sea.
On 1 April 1944, during her ninth patrol, U-355 reported from approximate position Coordinates: while in pursuit of Convoy JW 58. She was never heard from again, and was listed as missing, together with 52 hands on board, on 4 April 1944. Post-war analysis led the Admiralty to credit her destruction to HMS Beagle and aircraft from HMS Tracker. Other sources dispute this, claiming U-355 was lost due to an unknown cause.
U-355 took part in five wolfpacks, namely.
- Eisteufel (21 June – 9 July 1942)
- Nebelkönig (27 July – 14 August 1942)
- Eisbär (27 March – 15 April 1943)
- Monsun (19–21 October 1943)
- Blitz (26 March – 4 April 1944)
|7 July 1942||Hartlebury||5,082||United Kingdom||Sunk|
- Kemp 1999, p. 180.
- Helgason, Guðmundur. "U-355". German U-boats of WWII - uboat.net. Retrieved 3 June 2010.
- Helgason, Guðmundur. "Patrols byU-355". German U-boats of WWII - uboat.net. Retrieved 3 June 2010.
- Gröner 1991, pp. 43-46.
- Helgason, Guðmundur. "Patrol info for U-355 (First patrol)". German U-boats of WWII - uboat.net. Retrieved 3 June 2010.
- Helgason, Guðmundur. "Hartlebury". German U-boats of WWII - uboat.net. Retrieved 3 June 2010.
- Neistle p57, 226
- Helgason, Guðmundur. "Ships hit by U-355". German U-boats of WWII - uboat.net. Retrieved 23 January 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.
- Axel Neistle : German U-Boat Losses during World War II (1998). ISBN 1-85367-352-8