German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-757 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[2] 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 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 Garbe, Lahmeyer & Co. RP 137/c 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).[2]
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).[2] 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-757 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.[2]
Service historyedit
U-757's first victims were the British transport vessel HMS LCT-2398 - destroying 291 tons of shipping - in the convoy HX 228, and the American merchant vessel William C. Gorgas- destroying a further 7,197 GRT of shipping. Both incidents occurred on 11 March 1943, fourteen days into her twenty-five-day-long third patrol. Of the seventy-three crewmen on board the Gorgas, twenty-two perished.
On her fourth patrol, U-757 sank the Norwegian Fernhill on 7 August 1943, thirty-one days into her sixty-day patrol, 4,116 GRT of shipping lost in the sea. Of the ship's forty-four crewmen, forty survived the attack, being rescued by the American tanker Idaho two days later.
^Helgason, Guðmundur. "Ships hit by U-757". German U-boats of WWII - uboat.net. Retrieved 12 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). Der U-Boot-Krieg, 1939-1945: 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.
Edwards, Bernard (1996). Dönitz and the Wolf Packs - The U-boats at War. Cassell. p. 173. ISBN0-304-35203-9.
Gröner, Eric; 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 VIIC boat U-757". German U-boats of WWII - uboat.net. Retrieved 29 December 2014.
January 01, 1970
german, submarine, type, viic, boat, built, nazi, germany, kriegsmarine, service, during, world, laid, down, yard, number, kriegsmarinewerft, wilhelmshaven, served, with, boat, flotilla, from, february, 1942, until, january, 1944, under, command, korvettenkapi. German submarine U 757 was a Type VIIC U boat built for Nazi Germany s Kriegsmarine for service during World War II Laid down as yard number 140 at the Kriegsmarinewerft KMW in Wilhelmshaven U 757 served with 6th U boat Flotilla from 28 February 1942 until 8 January 1944 under the command of Korvettenkapitan Friedrich Deetz 1 History Nazi Germany NameU 757 Ordered9 October 1939 1 BuilderKriegsmarinewerft Wilhelmshaven Yard number140 Laid down18 May 1940 1 Launched14 December 1941 1 Commissioned28 February 1942 1 FateSunk on 8 January 1944 1 General characteristics Class and typeType VIIC submarine Displacement769 tonnes 757 long tons surfaced 871 t 857 long tons submerged Length67 10 m 220 ft 2 in o a 50 50 m 165 ft 8 in pressure hull Beam6 20 m 20 ft 4 in o a 4 70 m 15 ft 5 in pressure hull Height9 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 motors Speed17 7 knots 32 8 km h 20 4 mph surfaced 7 6 knots 14 1 km h 8 7 mph submerged Range8 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 submerged Test depth230 m 750 ft Crush depth 250 295 m 820 968 ft Complement4officers 40 56 enlisted Armament5 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 gun Service record Part of 6th U boat Flotilla 28 February 1942 8 January 1944Identification codes M 39 567Commanders Oblt z S K Kapt Friedrich Deetz 28 February 1942 8 January 1944Operations 5 patrols 1st patrol 26 September 24 October 1942 2nd patrol 12 25 December 1942 3rd patrol 22 February 18 March 1943 4th patrol 7 July 4 September 1943 5th patrol a 31 October 2 November 1943 b 16 18 November 1943 c 20 22 November 1943 d 29 November 1 December 1943 e 29 December 1943 8 January 1944Victories 2 merchant ships sunk 11 313 GRT 1 warship sunk 291 tons Contents 1 Design 2 Service history 2 1 Fate 2 2 Wolfpacks 3 Summary of raiding history 4 References 4 1 Notes 4 2 Citations 5 Bibliography 6 External linksDesign editGerman Type VIIC submarines were preceded by the shorter Type VIIB submarines U 757 had a displacement of 769 tonnes 757 long tons when at the surface and 871 tonnes 857 long tons while submerged 2 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 Garbe Lahmeyer amp Co RP 137 c 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 2 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 2 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 757 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 2 Service history editU 757 s first victims were the British transport vessel HMS LCT 2398 destroying 291 tons of shipping in the convoy HX 228 and the American merchant vessel William C Gorgas destroying a further 7 197 GRT of shipping Both incidents occurred on 11 March 1943 fourteen days into her twenty five day long third patrol Of the seventy three crewmen on board the Gorgas twenty two perished On her fourth patrol U 757 sank the Norwegian Fernhill on 7 August 1943 thirty one days into her sixty day patrol 4 116 GRT of shipping lost in the sea Of the ship s forty four crewmen forty survived the attack being rescued by the American tanker Idaho two days later Fate edit On 8 January 1944 in the North Atlantic south west of Ireland U 757 was hit by depth charges from the British frigate HMS Bayntun and the Canadian corvette HMCS Camrose U 757 went down with all 49 seamen at position 50 33 N 18 03 W 50 550 N 18 050 W 50 550 18 050 Wolfpacks edit U 757 took part in five wolfpacks namely Panther 6 10 October 1942 Neuland 4 12 March 1943 Without name 11 29 July 1943 Rugen 5 6 7 January 1944 Rugen 7 8 January 1944 Summary of raiding history editDate Ship Name Nationality Tonnage Note 1 Fate 3 11 March 1943 William C Gorgas nbsp United States 7 197 Sunk 11 March 1943 HMS LCT 2398 Note 2 nbsp Royal Navy 291 Sunk 7 August 1943 Fernhill nbsp Norway 4 116 SunkReferences editNotes edit Merchant ship tonnages are in gross register tons Military vessels are listed by tons displacement Carried by William C Gorgas Citations edit a b c d e f Helgason Gudmundur The Type VIIC boat U 757 German U boats of WWII uboat net a b c d Groner 1991 pp 43 46 Helgason Gudmundur Ships hit by U 757 German U boats of WWII uboat net Retrieved 12 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 Der U Boot Krieg 1939 1945 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 Edwards Bernard 1996 Donitz and the Wolf Packs The U boats at War Cassell p 173 ISBN 0 304 35203 9 Groner Eric 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 VIIC boat U 757 German U boats of WWII uboat net Retrieved 29 December 2014 Retrieved from https en wikipedia org w index php title German submarine U 757 amp oldid 1214216023, wikipedia, wiki, book, books, library,
