After training with the 8th U-boat Flotilla, U-90 was assigned to the 9th flotilla on 1 July 1942 for operations. She was a member of one wolfpack in a patrol in which she was sunk by a Canadian warship.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-90 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[1] 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 MAN M 6 V 40/46 four-stroke, six-cylinder superchargeddiesel 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).[1]
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).[1] 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-90 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.[1]
Service historyedit
Patrol and Lossedit
Having departed Kiel on 30 June 1942, the boat hugged the southern Norwegian coast before turning west and sailing through the gap separating the Faroe and Shetland Islands. She was attacked and sunk by depth charges from the Canadian destroyer St. Croix in the Northern Atlantic on 24 July.
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. ISBN1-55750-186-6.
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] (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN3-8132-0514-2. {{cite book}}: |work= ignored (help)
Edwards, Bernard (1996). Dönitz and the Wolf Packs - The U-boats at War. Cassell Military Classics. pp. 75, 79, 82. ISBN0-304-35203-9.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN0-85177-593-4. {{cite book}}: |work= ignored (help)
External linksedit
Helgason, Guðmundur. "The Type VIIC boat U-90". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.
Hofmann, Markus. "U 90". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 26 December 2014.
german, submarine, 1941, other, ships, with, same, name, german, submarine, german, submarine, type, viic, boat, nazi, germany, kriegsmarine, during, world, historynazi, germanynameu, 90ordered25, january, 1939builderflender, werke, lübeckyard, number294laid, . For other ships with the same name see German submarine U 90 German submarine U 90 was a Type VIIC U boat of Nazi Germany s Kriegsmarine during World War II HistoryNazi GermanyNameU 90Ordered25 January 1939BuilderFlender Werke LubeckYard number294Laid down1 October 1940Launched25 October 1941Commissioned20 December 1941FateSunk 24 July 1942 in the Northern Atlantic by a Canadian warshipGeneral characteristicsClass and typeType VIIC submarineDisplacement769 tonnes 757 long tons surfaced 871 t 857 long tons submergedLength67 10 m 220 ft 2 in o a 50 50 m 165 ft 8 in pressure hullBeam6 20 m 20 ft 4 in o a 4 70 m 15 ft 5 in pressure hullHeight9 60 m 31 ft 6 in Draught4 74 m 15 ft 7 in Installed power2 800 3 200 PS 2 100 2 400 kW 2 800 3 200 bhp diesels 750 PS 550 kW 740 shp electric Propulsion2 shafts 2 diesel engines 2 electric motorsSpeed17 7 knots 32 8 km h 20 4 mph surfaced 7 6 knots 14 1 km h 8 7 mph submergedRange8 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 submergedTest depth230 m 750 ft Crush depth 250 295 m 820 968 ft Complement4 officers 40 56 enlistedArmament5 53 3 cm 21 in torpedo tubes four bow one stern 14 torpedoes 1 8 8 cm 3 46 in deck gun 220 rounds 1 x 2 cm 0 79 in C 30 AA gunService recordPart of 8th U boat Flotilla 20 December 1941 30 June 1942 9th U boat Flotilla 1 24 July 1942Identification codes M 47 644Commanders Kptlt Hans Jurgen Oldorp 20 December 1941 24 July 1942Operations 1 patrol 30 June 24 July 1942Victories NoneShe was laid down at the Flender Werke in Lubeck as yard number 294 on 1 October 1940 launched on 25 October 1941 and commissioned on 20 December with Oberleutnant zur See Hans Jurgen Oldorp in command After training with the 8th U boat Flotilla U 90 was assigned to the 9th flotilla on 1 July 1942 for operations She was a member of one wolfpack in a patrol in which she was sunk by a Canadian warship Contents 1 Design 2 Service history 2 1 Patrol and Loss 2 2 Wolfpacks 3 References 4 Bibliography 5 External linksDesign editGerman Type VIIC submarines were preceded by the shorter Type VIIB submarines U 90 had a displacement of 769 tonnes 757 long tons when at the surface and 871 tonnes 857 long tons while submerged 1 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 MAN M 6 V 40 46 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 amp 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 1 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 1 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 90 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 1 Service history editPatrol and Loss edit Having departed Kiel on 30 June 1942 the boat hugged the southern Norwegian coast before turning west and sailing through the gap separating the Faroe and Shetland Islands She was attacked and sunk by depth charges from the Canadian destroyer St Croix in the Northern Atlantic on 24 July Wolfpacks edit U 90 took part in one wolfpack namely Wolf 13 24 July 1942 References edit a b c d Groner 1991 pp 43 46 Bibliography editBusch Rainer Roll 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 Roll Hans Joachim 1999 Deutsche U Boot Verluste von September 1939 bis Mai 1945 German U boat losses from September 1939 to May 1945 in German Vol IV Hamburg Berlin Bonn Mittler ISBN 3 8132 0514 2 a href Template Cite book html title Template Cite book cite book a work ignored help Edwards Bernard 1996 Donitz and the Wolf Packs The U boats at War Cassell Military Classics pp 75 79 82 ISBN 0 304 35203 9 Groner Erich Jung Dieter Maass Martin 1991 U boats and Mine Warfare Vessels Vol 2 Translated by Thomas Keith Magowan Rachel London Conway Maritime Press ISBN 0 85177 593 4 a href Template Cite book html title Template Cite book cite book a work ignored help External links editHelgason Gudmundur The Type VIIC boat U 90 German U boats of WWII uboat net Retrieved 26 December 2014 Hofmann Markus U 90 Deutsche U Boote 1935 1945 u boot archiv de in German Retrieved 26 December 2014 Portals nbsp Military of Germany nbsp World War II 48 12 N 40 56 W 48 200 N 40 933 W 48 200 40 933 Retrieved from https en wikipedia org w index php title German submarine U 90 1941 amp oldid 1187938277, wikipedia, wiki, book, books, library,
