German submarine U-415

Coordinates: 48°24′N 4°30′W / 48.400°N 4.500°W / 48.400; -4.500
Source: Wikipedia, the free encyclopedia.
History
Nazi Germany
NameU-415
Ordered15 August 1940
BuilderDanziger Werft, Danzig
Yard number116
Laid down12 July 1941
Launched9 May 1942
Commissioned5 August 1942[1]
FateSunk by a mine on 14 July 1944[2][3]
General characteristics
Class and type
Type VIIC submarine
Displacement
Length
  • 67.10 m (220 ft 2 in)
    o/a
  • 50.50 m (165 ft 8 in)
    pressure hull
Beam
  • 6.20 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 power
  • 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion
Speed
  • 17.7 knots (32.8 km/h; 20.4 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
Range
  • 8,500 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 depth
  • 230 m (750 ft)
  • Crush depth: 250–295 m (820–968 ft)
Complement4 officers, 40–56 enlisted
Armament
Service record[1]
Part of:
Identification codes: M 50 314
Commanders:
  • Kptlt.
     Kurt Neide
  • 5 August 1942 – 16 April 1944
  • Oblt.z.S.
     Herbert A. Werner
  • 17 April – 14 July 1944
Operations:
  • 7 patrols:
  • 1st patrol:
  • 7 March – 5 May 1943
  • 2nd patrol:
  • 12 June – 8 September 1943
  • 3rd patrol:
  • 27 October – 2 November 1943
  • 4th patrol:
  • 21 November 1943 – 6 January 1944
  • 5th patrol:
  • 2 – 31 March 1944
  • 6th patrol:
  • 6 – 8 June 1944
  • 7th patrol:
  • 11 – 13 July 1944
Victories:
  • 1 merchant ship sunk
    (4,917 GRT)
  • 1 warship sunk
    (1,340 tons)
  • 1 merchant ship damaged
    (5,486 GRT)

German submarine U-415 was a

Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II
.

Design

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 Siemens-Schuckert GU 343/38–8 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).[4]

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).

anti-aircraft guns. The boat had a complement of between forty-four and sixty.[4]

Service history

U-415 was

Danzig (now Gdańsk, Poland), as yard number 116. She was launched on 9 May 1942 and commissioned on 5 August. She completed seven patrols before being sunk by a mine
on 14 July 1944.

Her first commanding officer was Kapitänleutnant Kurt Neide. He took her on five patrols between March 1943 and March 1944. Her second and last CO was Oberleutnant zur See Herbert Werner, who completed two patrols in her between April and July 1944. These patrols were preceded by a trip to Bergen in Norway in February and March 1943.

First, second and third patrols

Her first patrol saw her leave Bergen on 7 March 1943 and took her to an area south of Greenland where she torpedoed, but did not sink, the British ship Wanstead on 21 April. The ship was sailing in ballast, (the coup de grace was administered by U-413). U-415 then sailed for Brest in France, but was attacked west of the Bay of Biscay on 1 May; first by a Handley Page Halifax of No. 502 Squadron RAF and later that the same day by a Whitley from 612 squadron, also RAF. She was damaged, but managed to reach her destination on 5 May.

Her second sortie began in the company of U-159 and U-634. The small flotilla was detected by a RAF Whitley on 14 June 1943 off the northwest coast of Spain, but the aircraft only attacked when the trio dived. No damage was sustained. The boat was also attacked by a corvette off the coast of Trinidad on 24 July, while hunting a convoy.[1]

Her third patrol, beginning on 27 October 1943, was marred by the attack of a

Cape Ortegal in the Bay of Biscay on 30 October. The aircraft dropped four depth charges
which caused enough damage to ensure that the submarine was compelled to return to base. The Wellington was shot down during the action, all six crew members were killed.

Fourth and fifth patrols

Her fourth operational effort was rewarded by the sinking of the "H"-class destroyer HMS Hurricane. U-415 encountered the warship on Christmas Eve (24 December) 1943 northeast of the Azores. Hurricane was damaged by a GNAT acoustic torpedo. Her escorts elected to evacuate the crew and sink the ship the following day. On her return journey U-415 was attacked by a Halifax of 58 squadron, on 5 January 1944. The aircraft dropped six depth charges on the U-boat which returned fire before diving. The submarine reached her home port the following day.

U-415's fifth patrol came to a sudden halt in mid-Atlantic when she was attacked on 16 March 1944 by aircraft and ships escorting convoy CU 17. The boat was severely damaged and returned to Brest on 31 March.

Sixth and seventh patrols

On 17 April Neide handed over command to Oblt. Herbert Werner, U-415's second and final commander.[1]

After completing repairs U-415, with most other U-boats in French ports, was held back from offensive patrolling to form Group Landwirt, an anti-invasion force. U-415 remained idle for some 68 days before being called to action,[5] a not un-typical period for the Landwirt boats and which left the campaign against Allied shipping at a virtual standstill.[6]

U-415 and the Landwirt boats at Brest were finally mobilized on the night of 6/7 June 1944, the evening of the Normandy landings. Seven snorkel-equipped U-boats, and eight boats, including U-415 lacking snorkels, sailed from Brest in two waves. The eight non-snort boats, proceeding on the surface, came under sustained air attack in what was described as the “greatest air/submarine battle of the war”.[7] Four of the Brest boats were destroyed in air attacks over the 24 hours and three others damaged and forced to return to base; Four aircraft were also shot down. U-415 was attacked in the early hours of 7 June by a

Leigh light equipped Wellington and severely damaged; she returned to Brest the following day. Werner claims he shot down two attacking aircraft during this action;[8] other sources report the four RAF aircraft lost, but state it is not possible to say which U-boats were responsible.[9][10]

Following this action

BdU directed all non-snort boats to be restricted to defensive patrols outside their base ports.[11]
On 11 July U-415 assigned, with U-963, to Group Pirat, a defensive patrol line off Brest to protect incoming and outgoing U-boats. They came under frequent air attack and withdrew after two days.[12][13]

On 14 July, assigned to similar duty, U-415 struck an air-laid mine (minefield “Jellyfish 5”) off Brest. West of the ports defensive torpedo net at 48°22′N 04°29′W / 48.367°N 4.483°W / 48.367; -4.483. Two crewmen were killed.[2][14]

U-415 was raised on 21 July and put in Clemenceau dock, but was a constructive total loss. She was subsequently cannibalized for spare parts to keep other U-boats in service, and scuttled in August 1944 prior to the fall of “Fortress Brest” to the Allied armies. The hull was broken up in 1946.[2][15]

Wolfpacks

U-415 took part in seven wolfpacks, namely:

  • Seeteufel (21 – 30 March 1943)
  • Meise (11 – 24 April 1943)
  • Coronel (4 – 8 December 1943)
  • Coronel 2 (8 – 14 December 1943)
  • Coronel 3 (14 – 17 December 1943)
  • Borkum (18 – 26 December 1943)
  • Preussen (7 – 17 March 1944)

Aftermath

Werner and some of the crew members from U-415 were moved to U-953. Werner survived the war and wrote the best-selling Iron Coffins.[3]

Summary of raiding history

Date Ship Name Nationality Tonnage[Note 1] Fate[16]
21 April 1943 Ashantian  United Kingdom 4,917 Sunk
21 April 1943 Wanstead  United Kingdom 5,486 Damaged
24 December 1943 HMS Hurricane  Royal Navy 1,340 Damaged, sunk by escorts

References

Notes

  1. gross register tons. Military vessels are listed by tons displacement
    .

Citations

  1. ^ a b c d Helgason, Guðmundur. "The Type VIIC boat U-415". German U-boats of WWII - uboat.net. Retrieved 13 September 2012.
  2. ^ a b c Neistle p62
  3. ^ a b Kemp 1999, p. 203.
  4. ^ a b c d Gröner 1991, pp. 43–46.
  5. ^ Blair p582
  6. ^ Blair p479
  7. ^ Price p202
  8. ^ Werner p220-222
  9. ^ Blair p583 fn
  10. ^ Helgason, Guðmundur. "U-415s sixth patrol". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.
  11. ^ Blair p583
  12. ^ Blair p602 fn
  13. ^ Helgason, Guðmundur. "U-415s seventh patrol". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.
  14. ^ Blair p602
  15. ^ Rohwer, Jürgen; Gerhard Hümmelchen. "Seekrieg 1944, Juli". Württembergische Landesbibliothek Stuttgart (in German). Retrieved 5 September 2015.
  16. ^ Helgason, Guðmundur. "Ships hit by U-415". German U-boats of WWII - uboat.net. Retrieved 1 September 2014.

Sources

Bibliography

External links

48°24′N 4°30′W / 48.400°N 4.500°W / 48.400; -4.500

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