German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-1230 had a displacement of 1,144 tonnes (1,126 long tons) when at the surface and 1,257 tonnes (1,237 long tons) while submerged.[1] 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 6.86 m (22 ft 6 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.67 m (15 ft 4 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 shaft horsepower (1,010 PS; 750 kW) 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).[1]
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).[1] 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 13,850 nautical miles (25,650 km; 15,940 mi) at 10 knots (19 km/h; 12 mph). U-1230 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) Flak M42 as well as two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of forty-eight.[1]
At the end of the war it was captured by the Allies, transferred to Loch Ryan in Scotland, and sunk on 17 December 1945 by the Royal NavyfrigateHMS Cubitt as part of "Operation Deadlight". Unusually for a U-boat, U-1230 does not seem to have suffered any casualties during the war.
^Helgason, Guðmundur. "Ships hit by U-1230". German U-boats of WWII – uboat.net. Retrieved 17 February 2014.
BibliographyEdit
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]. Der U-Boot-Krieg (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN3-8132-0514-2.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). German Warships 1815–1945, U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN0-85177-593-4.
External linksEdit
Helgason, Guðmundur. "The Type IXC/40 boat U-1230". German U-boats of WWII – uboat.net. Retrieved 29 December 2014.
ibiblio.org webpage for Allied report on the interrogations of Gimpel and Colepaugh
german, submarine, 1230, type, boat, nazi, germany, kriegsmarine, during, world, historynazi, germanynameu, 1230ordered14, october, 1941builderdeutsche, werft, hamburgyard, number393laid, down15, march, 1943launched8, november, 1943commissioned26, january, 194. German submarine U 1230 was a Type IXC 40 U boat of Nazi Germany s Kriegsmarine during World War II HistoryNazi GermanyNameU 1230Ordered14 October 1941BuilderDeutsche Werft HamburgYard number393Laid down15 March 1943Launched8 November 1943Commissioned26 January 1944FateSurrendered on 5 May 1945 Sunk on 17 December 1945 during Operation DeadlightGeneral characteristicsClass and typeType IXC 40 submarineDisplacement1 144 t 1 126 long tons surfaced 1 257 t 1 237 long tons submergedLength76 76 m 251 ft 10 in o a 58 75 m 192 ft 9 in pressure hullBeam6 86 m 22 ft 6 in o a 4 44 m 14 ft 7 in pressure hullHeight9 60 m 31 ft 6 in Draught4 67 m 15 ft 4 in Installed power4 400 PS 3 200 kW 4 300 bhp diesels 1 000 PS 740 kW 990 shp electric Propulsion2 shafts 2 diesel engines 2 electric motorsSpeed18 3 knots 33 9 km h 21 1 mph surfaced 7 3 knots 13 5 km h 8 4 mph submergedRange13 850 nmi 25 650 km 15 940 mi at 10 knots 19 km h 12 mph surfaced 63 nmi 117 km 72 mi at 4 knots 7 4 km h 4 6 mph submergedTest depth230 m 750 ft Complement4 officers 44 enlistedArmament6 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 Flak M42 AA gun 2 x twin 2 cm 0 79 in C 30 AA gunsService recordPart of 31st U boat Flotilla 26 January 31 July 1944 10th U boat Flotilla 1 August 30 September 1944 33rd U boat Flotilla 1 October 1944 5 May 1945Commanders Kptlt Hans Hilbig 26 January 1944 5 May 1945Operations 1 patrol a 8 October 1944 13 February 1945 b 20 23 February 1945Victories 1 merchant ship sunk 5 458 GRT Laid down on 15 March 1943 at the Deutsche Werft in Hamburg and commissioned on 26 January 1944 under the command of Kapitanleutnant Hans Hilbig it only undertook one patrol operating from Horten Naval Base Norway returning safely to Kristiansand Norway in early 1945 Contents 1 Design 2 Service history 2 1 Operation Magpie 2 2 Fate 3 Summary of raiding history 4 References 5 Bibliography 6 External linksDesign EditGerman Type IXC 40 submarines were slightly larger than the original Type IXCs U 1230 had a displacement of 1 144 tonnes 1 126 long tons when at the surface and 1 257 tonnes 1 237 long tons while submerged 1 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 86 m 22 ft 6 in a height of 9 60 m 31 ft 6 in and a draught of 4 67 m 15 ft 4 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 shaft horsepower 1 010 PS 750 kW 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 1 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 1 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 13 850 nautical miles 25 650 km 15 940 mi at 10 knots 19 km h 12 mph U 1230 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 Flak M42 as well as two twin 2 cm 0 79 in C 30 anti aircraft guns The boat had a complement of forty eight 1 Service history EditIts one war patrol was of historical interest less for its role in the Battle of the Atlantic a Canadian steamer of 5 458 Gross register tonnage was its sole victim than for its role in transporting two German spies to the United States Operation Magpie Edit William Curtis Colepaugh and Eric Gimpel were landed at Hancock Point in the Gulf of Maine on 29 November 1944 in Operation Elster Magpie The mission was intended to gather technical intelligence but failed and both spies were captured Fate Edit At the end of the war it was captured by the Allies transferred to Loch Ryan in Scotland and sunk on 17 December 1945 by the Royal Navy frigate HMS Cubitt as part of Operation Deadlight Unusually for a U boat U 1230 does not seem to have suffered any casualties during the war Summary of raiding history EditDate Ship Name Nationality Tonnage GRT Fate 2 3 December 1944 Cornwallis nbsp Canada 5 458 SunkReferences Edit a b c d Groner 1991 p 68 Helgason Gudmundur Ships hit by U 1230 German U boats of WWII uboat net Retrieved 17 February 2014 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 Der U Boot Krieg in German Vol IV Hamburg Berlin Bonn Mittler ISBN 3 8132 0514 2 Groner Erich Jung Dieter Maass Martin 1991 German Warships 1815 1945 U boats and Mine Warfare Vessels Vol 2 Translated by Thomas Keith Magowan Rachel London Conway Maritime Press ISBN 0 85177 593 4 External links EditHelgason Gudmundur The Type IXC 40 boat U 1230 German U boats of WWII uboat net Retrieved 29 December 2014 ibiblio org webpage for Allied report on the interrogations of Gimpel and Colepaugh Portals nbsp Military of Germany nbsp World War II Retrieved from https en wikipedia org w index php title German submarine U 1230 amp oldid 1172031967, wikipedia, wiki, book, books, library,
