German submarine U-70 (1940)

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For other ships of the same name, see German submarine U-70.
Career (Nazi Germany)
Name: U-70
Ordered: 30 May 1938
Builder: Germaniawerft, Kiel
Cost: 4,439,000 Reichsmark
Yard number: 605
Laid down: 19 December 1939
Launched: 12 October 1940
Commissioned: 23 November 1940
Fate: Sunk, 7 March 1941 by British warships[1]
General characteristics [2]
Class and type: Type VIIC submarine
Displacement: 769 tonnes (757 long tons) surfaced
871 t (857 long tons) submerged
Length: 67.1 m (220 ft 2 in) o/a
50.5 m (165 ft 8 in) pressure hull
Beam: 6.2 m (20 ft 4 in) o/a
4.7 m (15 ft 5 in) pressure hull
Height: 9.6 m (31 ft 6 in)
Draft: 4.74 m (15 ft 7 in)
Propulsion: 2 × supercharged Germaniawerft 6-cylinder 4-stroke F46 diesel engines, totalling 2,800–3,200 PS (2,800–3,200 bhp; 2,100–2,400 kW). Max rpm: 470-490
2 × AEG electric motors, totalling 750 PS (740 shp; 550 kW) and max rpm: 296
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)
Complement: 44–52 officers & ratings
Armament:
Service record[3][4]
Part of: 7th U-boat Flotilla
(23 November 1940–7 March 1941)
Commanders: Kptlt. Joachim Matz
(23 November 1940–7 March 1941)
Operations: 20 February–7 March 1941
Victories: One commercial ship sunk (820 GRT)
three commercial ships damaged (20,484 GRT)

German submarine U-70 was a Type VIIC submarine of Nazi Germany's Kriegsmarine during World War II.

The U-boat was laid down on 19 December 1939 at the Friedrich Krupp Germaniawerft shipyard at Kiel as yard number 604, launched on 12 October 1940, and commissioned on 23 November under the command of Kapitänleutnant Joachim Matz to serve with the 7th U-boat Flotilla from 23 November 1940 until she was sunk on 7 March 1941.

Service history[edit]

U-70‍ '​s first and only patrol began on 20 February 1941. On 26 February she sank the 820 ton Swedish merchant ship Göteborg, south of Iceland.[5]

U-70 joined U-47, U-99, and U-A[6] in a wolfpack that attacked Convoy OB 293 south-east of Iceland on 7 March 1941. In her first attack at 04:45 U-70 damaged the 6,568 ton British tanker Athelbeach (later sunk by U-99),[7] and the 6,423 ton British merchant vessel Delilian.[8]

At 07:25 U-70 struck again and hit the 7,493 ton Dutch tanker Mijdrecht. However the Master spotted the periscope of U-70, rammed the submerged U-boat at 7 knots (13 km/h; 8.1 mph), damaging the conning tower and reported its position to the convoy escorts.[9]

Fate[edit]

At 08.15 hours, the British corvette HMS Camellia sighted U-70, which promptly dived. Until 10:30 Camellia and her sister ship HMS Arbutus attacked five times with depth charges, then Arbutus made another four attacks. In total the two corvettes dropped 48 depth charges. Finally, at 12:44, U-70 was forced to the surface and was abandoned by her crew at 60°15′N 14°00′W / 60.250°N 14.000°W / 60.250; -14.000Coordinates: 60°15′N 14°00′W / 60.250°N 14.000°W / 60.250; -14.000. Twenty-five survivors of her crew of forty-five,[3] were picked up and taken prisoner.[9][1]

Summary of raiding career[edit]

Date Ship Nationality Tonnage Fate[10]
26 February 1941 Goteborg  Sweden 820 Sunk
7 March 1941 Athelbeach  United Kingdom 6,568 Damaged
7 March 1941 Delilian  United Kingdom 6,423 Damaged
7 March 1941 Mijdrecht  Netherlands 7,493 Damaged

References[edit]

  1. ^ a b Kemp, p. 68.
  2. ^ Gröner 1985, pp. 72-74.
  3. ^ a b Helgason, Guðmundur. "The Type VIIC boat U-70". German U-boats of WWII - uboat.net. Retrieved 2009-12-22. 
  4. ^ Helgason, Guðmundur. "Patrol of U-boat U-70 from 20 February 1941 to 7 March 1941". German U-boats of WWII - uboat.net. Retrieved 2009-12-22. 
  5. ^ Helgason, Guðmundur. "Göteborg (Steam merchant)". German U-boats of WWII - uboat.net. Retrieved 2009-12-22. 
  6. ^ Helgason, Guðmundur. "Convoy OB-293". German U-boats of WWII - uboat.net. Retrieved 2009-12-22. 
  7. ^ Helgason, Guðmundur. "Athelbeach (Motor tanker)". German U-boats of WWII - uboat.net. Retrieved 2009-12-22. 
  8. ^ Helgason, Guðmundur. "Delilian (Steam merchant)". German U-boats of WWII - uboat.net. Retrieved 2009-12-22. 
  9. ^ a b Helgason, Guðmundur. "Mijdrecht (Motor tanker)". German U-boats of WWII - uboat.net. Retrieved 2009-12-22. 
  10. ^ Helgason, Guðmundur. "Ships hit by U-70". German U-boats of WWII - uboat.net. 

Bibliography[edit]

  • Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945. Der U-Boot-Krieg (in German) IV (Hamburg, Berlin, Bonn: Mittler). ISBN 3-8132-0514-2. 
  • Gröner, Erich (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. Die deutschen Kriegsschiffe 1815–1945 (in German) III (Koblenz: Bernard & Graefe). ISBN 3-7637-4802-4. 
  • Bishop, Chris (2006). Kriegsmarine U-Boats, 1939-45. Amber Books. 
  • Kemp, Paul (1997). U-Boats Destroyed, German Submarine Losses in the World Wars. Arms and Armour. ISBN 1-85409-515-3. 

External links[edit]