Like all Type VIIC/41U-boats, U-1172 had a displacement of 759 tonnes (747 long tons) when at the surface and 860 tonnes (850 long tons) while submerged. She had a total length of 67.23 m (220 ft 7 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), and a draught of 4.74 m (15 ft 7 in).[3] The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke 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) and two SSW GU 343/38-8 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. The boat was capable of operating at a depth of 250 metres (820 ft).[3]
The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a 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).[3]U-1172 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), one 3.7 cm (1.5 in) Flak M42 and two 2 cm (0.79 in) C/30 anti-aircraft guns. Its complement was between forty-four and sixty.[3]
Sensorsedit
Passive sonaredit
U-1172 was one of only ten Type VIIC's to be fitted with a Balkongerät (literally 'Balcony apparatus or equipment'). The Balkongerät was used on U-boats (U-682, U-788, U-799, U-977, U-1021, U-1105, U-1306, U-1307 and U-1308).[4] The Balkongerät was standard on the Type XXI and the Type XXIII. Nonetheless, it was also fitted to several Type IXs and one Type X. The Balkongerät was an improved version of Gruppenhorchgerät (GHG) (group listening device). The GHG had 24 hydrophones, the Balkongerät had 48 hydrophones and improved electronics, which enabled more accurate readings to be taken.[5]
The outside view of the German design of Balcongerät installed on Type VIIC's
^"Hydrophones". U-boats Aces - uboataces.com. Retrieved 20 May 2016.
^Helgason, Guðmundur. "Ships hit by U-1172". German U-boats of WWII - uboat.net. Retrieved 25 March 2015.
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.
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.
german, submarine, 1172, type, viic, boat, built, nazi, germany, kriegsmarine, service, during, world, laid, down, june, 1943, danziger, werft, danzig, yard, number, launched, december, 1943, commissioned, april, 1944, under, oberleutnant, jürgen, kuhlmann, ty. German submarine U 1172 was a Type VIIC 41 U boat built for Nazi Germany s Kriegsmarine for service during World War II She was laid down on 7 June 1943 by Danziger Werft Danzig as yard number 144 launched on 3 December 1943 and commissioned on 20 April 1944 under Oberleutnant zur See Jurgen Kuhlmann U 995 Type VIIC 41 at the Laboe Naval Memorial This U boat is almost identical to U 1172 HistoryNazi GermanyNameU 1172Ordered16 July 1942BuilderDanziger Werft AG DanzigYard number144Laid down7 June 1943Launched3 December 1943Commissioned20 April 1944FateSunk on 27 January 1945 in St Georges Channel at 52 24 N 5 42 W 52 400 N 5 700 W 52 400 5 700 by British frigatesGeneral characteristics 1 Class and typeType VIIC 41 submarineDisplacement759 tonnes 747 long tons surfaced 860 t 846 long tons submergedLength67 23 m 220 ft 7 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 Calculated crush depth 250 295 m 820 968 ft Complement44 52 officers amp ratingsArmament5 53 3 cm 21 in torpedo tubes 4 bow 1 stern 14 torpedoes 1 8 8 cm 3 46 in deck gun 220 rounds 1 3 7 cm 1 5 in Flak M42 AA gun 2 2 cm 0 79 in C 30 AA gunsService recordPart of 8th U boat Flotilla 20 April 30 November 1944 11th U boat Flotilla 1 December 1944 27 January 1945Commanders Oblt z S Jurgen Kuhlmann 2 20 April 1944 27 January 1945Operations 1 patrol 22 December 1944 27 January 1945Victories 1 merchant ship sunk 1 599 GRT 1 warship total loss 11 400 tons 1 merchant ship damaged 7 429 GRT Contents 1 Design 2 Sensors 2 1 Passive sonar 3 Service history 4 Summary of raiding history 5 See also 6 References 6 1 Notes 6 2 Citations 7 BibliographyDesign editLike all Type VIIC 41 U boats U 1172 had a displacement of 759 tonnes 747 long tons when at the surface and 860 tonnes 850 long tons while submerged She had a total length of 67 23 m 220 ft 7 in a pressure hull length of 50 50 m 165 ft 8 in a beam of 6 20 m 20 ft 4 in and a draught of 4 74 m 15 ft 7 in 3 The submarine was powered by two Germaniawerft F46 supercharged six cylinder four stroke 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 and two SSW GU 343 38 8 double acting electric motors producing a total of 750 metric horsepower 550 kW 740 shp for use while submerged The boat was capable of operating at a depth of 250 metres 820 ft 3 The submarine had a maximum surface speed of 17 7 knots 32 8 km h 20 4 mph and a 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 3 U 1172 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 one 3 7 cm 1 5 in Flak M42 and two 2 cm 0 79 in C 30 anti aircraft guns Its complement was between forty four and sixty 3 Sensors editPassive sonar edit U 1172 was one of only ten Type VIIC s to be fitted with a Balkongerat literally Balcony apparatus or equipment The Balkongerat was used on U boats U 682 U 788 U 799 U 977 U 1021 U 1105 U 1306 U 1307 and U 1308 4 The Balkongerat was standard on the Type XXI and the Type XXIII Nonetheless it was also fitted to several Type IXs and one Type X The Balkongerat was an improved version of Gruppenhorchgerat GHG group listening device The GHG had 24 hydrophones the Balkongerat had 48 hydrophones and improved electronics which enabled more accurate readings to be taken 5 nbsp The outside view of the German design of Balcongerat installed on Type VIIC sService history editThe boat s service career began on 20 April 1944 with the 8th Training Flotilla followed by active service with 11th Flotilla on 1 December 1944 U 1172 took part in no wolfpacks U 1172 was sunk on 27 January 1945 in St Georges Channel by depth charges from British frigates HMS Tyler HMS Keats and HMS Bligh at 52 24 N 05 42 W 52 400 N 5 700 W 52 400 5 700 Summary of raiding history editDate Ship Name Nationality Tonnage Note 1 Fate 6 15 January 1945 HMS Thane nbsp Royal Navy 11 400 Total loss15 January 1945 Spinanger nbsp Norway 7 429 Damaged23 January 1945 Vigsnes nbsp Norway 1 599 SunkSee also editBattle of the AtlanticReferences editNotes edit Merchant ship tonnages are in gross register tons Military vessels are listed by tons displacement Citations edit Helgason Gudmundur Type VIIC 41 German U boats of WWII uboat net Retrieved 25 March 2015 Helgason Gudmundur Jurgen Kuhlmann German U boats of WWII uboat net Retrieved 25 March 2015 a b c d Groner 1991 pp 43 46 Base on war time photographs Hydrophones U boats Aces uboataces com Retrieved 20 May 2016 Helgason Gudmundur Ships hit by U 1172 German U boats of WWII uboat net Retrieved 25 March 2015 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 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 Portals nbsp Military of Germany nbsp World War II Retrieved from https en wikipedia org w index php title German submarine U 1172 amp oldid 1172007272, wikipedia, wiki, book, books, library,
