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German submarine U-506
Name: U-506
Ordered: 25 September 1939
Builder: Deutsche Werft, Hamburg
Yard number: 296
Laid down: 11 July 1940
Launched: 20 June 1941
Commissioned: 15 September 1941
Fate: Sunk, 12 July 1943[1]
General characteristics
Type: Type IXC submarine
Displacement: 1,120 t (1,100 long tons) surfaced
1,232 t (1,213 long tons) submerged
Length: 76.8 m (252 ft 0 in) o/a
58.7 m (192 ft 7 in) pressure hull
Beam: 6.8 m (22 ft 4 in) o/a
4.4 m (14 ft 5 in) pressure hull
Height: 9.4 m (30 ft 10 in)
Draft: 4.7 m (15 ft 5 in)
Propulsion: 2 × MAN M9V40/46 supercharged 9-cylinder diesel engines, 4,400 hp (3,281 kW)
2 × SSW GU345/34 double-acting electric motors, 1,000 hp (746 kW)
Speed: 18.2 knots (33.7 km/h) surfaced
7.7 knots (14.3 km/h) submerged
Range: 24,880 nmi (46,080 km) at 10 knots (19 km/h) surfaced
117 nmi (217 km) at 4 kn (7.4 km/h) submerged
Test depth: 230 m (750 ft)
Complement: 48 to 56
Armament: • 6 × torpedo tubes (four bow, two stern)
• 22 × 533 mm (21 in) torpedoes
• 1 × 10.5 cm SK C/32 naval gun[2] (110 rounds)
• AA guns
Service record[3][4]
Part of: 4th U-boat Flotilla
(15 September 1941–31 January 1942)
10th U-boat Flotilla
(1 February 1942–12 July 1943)
Commanders: Kptlt. Erich Würdemann
(15 September 1941–12 July 1943)
Operations: 1st patrol: 9–25 March 1942
2nd patrol: 6 April–15 June 1942
3rd patrol: 28 July–7 November 1942
4th patrol: 14 December 1942–8 May 1943
5th patrol: 6–12 July 1943
Victories: 14 commercial ships sunk (69,893 GRT)
three commercial ships damaged (23,358 GRT)
one commercial ship a total loss (6,821 GRT)

German submarine U-506 was a Type IXC U-boat of the Nazi German Kriegsmarine during World War II. The submarine was laid down on 11 July 1940 at the Deutsche Werft yard in Hamburg as 'werk' 296, launched on 20 June 1941 and commissioned on 15 September 1941 under the command of Kapitänleutnant Erich Würdemann. 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.[3] She sank 14 ships, three were classified as 'damaged' another vessel was declared a 'total loss'.

She was sunk in the Atlantic on 12 July 1943 by depth charges dropped by a US B-24 Liberator.[5]

Service history

1st patrol

U-506 first departed Hamburg on 2 March 1942 and sailed to Heligoland,[4] 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.[6]

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.[7] En route she sank a Nicaraguan merchant ship off the southern tip of Florida.[8] 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.[7]

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.[9]

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.[10] She was away even longer than on her third patrol-146 days.

5th patrol

U-506's final voyage began on 6 July 1943.[4] 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 / 42.5°N 16.5°W / 42.5; -16.5Coordinates: 42°30′N 16°30′W / 42.5°N 16.5°W / 42.5; -16.5. 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.[3]

Raiding history

Date Name Nationality Tonnage
3 May 1942 Sama  Netherlands 567 Sunk
10 May 1942 Aurora  USA 7,050 Damaged
13 May 1942 David McKelvy  USA 6,821 Total loss
16 May 1942 Sun  USA 9,002 Damaged
16 May 1942 William C. Mctarnahan  USA 7,366 Damaged
17 May 1942 Gulfoil  USA 5,189 Sunk
19 May 1942 Heredia  USA 4,732 Sunk
20 May 1942 Halo  USA 6,986 Sunk
20 May 1942 Yorkmoor  United Kingdom 4,457 Sunk
31 May 1942 Fred W. Green  United Kingdom 2,292 Sunk
21 August 1942 City of Wellington  United Kingdom 5,733 Sunk
23 August 1942 Hamla  United Kingdom 4,416 Sunk
5 September 1942 Myrmidon  United Kingdom 6,278 Sunk
13 September 1942 Lima  Sweden 3,764 Sunk
23 September 1942 Siam II  United Kingdom 6,637 Sunk
7 March 1943 Sabor  United Kingdom 5,212 Sunk
9 March 1943 Tabor  Norway 4,758 Sunk



External links

See also

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