Trisha Shetty

German submarine U 506

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Name  U-506
Yard number  296
Commissioned  15 September 1941
Construction started  11 July 1940
Length  77 m
Beam  6.76 m
Ordered  25 September 1939
Laid down  11 July 1940
Fate  Sunk, 12 July 1943
Launched  20 June 1941
Draft  4.7 m
Builder  Deutsche Werft
German submarine U-506 httpswwwuhistoriacomuhistoriahistoriahubo
Part of  4th U-boat Flotilla, 10th U-boat Flotilla

German submarine U-506 was a Type IXC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 11 July 1940 at the Deutsche Werft yard in Hamburg as yard number 296, launched on 20 June 1941 and commissioned on 15 September 1941 under the command of Kapitänleutnant Erich Würdemann.

Contents

After completing her training with the 4th U-boat Flotilla based at Stettin, U-506 was transferred to the 10th U-boat Flotilla for front-line service on 1 February 1942. She sank 14 ships, three were classified as 'damaged' another vessel was declared a 'total loss'. The submarine's missions, particularly the sinking of the merchant ship Heredia and later involvement in the so-called 'Laconia Incident' is chronicled in the 2016 book So Close to Home.

She was sunk in the Atlantic on 12 July 1943 by depth charges dropped by a US B-24 Liberator.

Design

German Type IXC submarines were slightly larger than the original Type IXBs. U-506 had a displacement of 1,120 tonnes (1,100 long tons) when at the surface and 1,232 tonnes (1,213 long tons) while submerged. 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 6.76 m (22 ft 2 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.70 m (15 ft 5 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).

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). 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 13,450 nautical miles (24,910 km; 15,480 mi) at 10 knots (19 km/h; 12 mph). U-506 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) as well as a 2 cm (0.79 in) anti-aircraft gun. The boat had a complement of forty-eight.

1st patrol

U-506 first departed Hamburg on 2 March 1942 and sailed to Heligoland, leaving there on 9 March for her first patrol, which took her around the British Isles to Lorient in occupied France via the gap between the Shetland and Faeroe Islands, by 25 March.

2nd patrol

The U-boat sailed from Lorient on 6 April 1942, crossed the Atlantic, and entered the Gulf of Mexico to operate off the Mississippi River Delta against the crucial oil trade. En route she sank a Nicaraguan merchant ship off the southern tip of Florida. Between 10 and 20 May she sank three American oil tankers and a banana boat, and damaged four other oil tankers, one so badly it was declared a total loss. On the return journey she sank two British merchant ships off the Bahamas, eventually returning to Lorient on 15 June.

3rd patrol

U-506 sailed from Lorient once again on 28 July 1942 and headed south to the coast of West Africa, operating against ships sailing from Freetown, Sierra Leone. There she sank five more merchant ships, four British, one Swedish. On the return journey the U-boat took part in the rescue operations after the sinking of the RMS Laconia, before returning to Lorient on 7 November after 103 days at sea.

4th patrol

The U-boat sailed from Lorient on 14 December 1942 and again headed south, this time to the coast of South Africa, where she sank two merchant ships, one British, the other Norwegian, before returning to base on 8 May. She was away even longer than on her third patrol-146 days.

5th patrol

U-506's final voyage began on 6 July 1943. On 12 July the U-boat was attacked by a USAAF B-24 Liberator bomber of the 1st Anti-Submarine Squadron in the North Atlantic west of Vigo, Spain, in position 42°30′N 16°30′W. The U-boat was located by the aircraft's SC137 10 cm radar, which the Germans could not detect, and was attacked with seven depth charges. The U-boat broke in two, and about 15 men were seen in the water by the pilot, who dropped a liferaft and a smoke flare. Only six men were rescued by a British destroyer three days later.

References

German submarine U-506 Wikipedia


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