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German submarine U-36 (1936)

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German submarine U-36 (1936)

U-Boot U-36
U-36 at sea in 1936: note the boat's number on the conning tower and hull. They were erased on the commencement of hostilities
History
Nazi Germany
Name: U-36
Ordered: 25 March 1935[1]
Builder: Germaniawerft, Kiel
Cost: 4,189,000 Reichsmark
Yard number: 559[1]
Laid down: 2 March 1936[1]
Launched: 4 November 1936[1]
Commissioned: 16 December 1936[1]
Fate: Sunk, 4 December 1939[2]
General characteristics
Class & type: Type VIIA submarine
Displacement:
  • 626 tonnes (616 long tons) surfaced
  • 745 t (733 long tons) submerged
Length:
  • 64.51 m (211 ft 8 in) o/a
  • 45.50 m (149 ft 3 in) pressure hull
Beam:
  • 5.85 m (19 ft 2 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Height: 9.50 m (31 ft 2 in)
Draft: 4.37 m (14 ft 4 in)
Installed power:
  • 2,100–2,310 PS (1,540–1,700 kW; 2,070–2,280 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion:
Range:
  • 6,200 nmi (11,500 km; 7,100 mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 73–94 nmi (135–174 km; 84–108 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth:
  • 220 m (720 ft)
  • Crush depth: 230–250 m (750–820 ft)
Complement: 4 officers, 40–56 enlisted
Sensors and
processing systems:
Gruppenhorchgerät
Armament:
Service record[2][3]
Part of:
Identification codes: M 13 703
Commanders:
Operations:
  • 1st patrol:
  • 7–30 September 1939
  • 2nd patrol:
  • 2–4 December 1939
Victories:
  • Two commercial ships sunk (2,813 GRT)
  • one commercial ship captured (1,617 GRT)

German submarine U-36 was a Type VIIA U-boat of Nazi Germany's Kriegsmarine which served during World War II.[2] She was constructed in the earliest days of the U-boat arm at Kiel in 1936, and served in the pre-war Navy in the Baltic Sea and North Sea under Kapitänleutnant (Kptlt.) Klaus Ewerth. Korvettenkapitän (K.Kapt.)Wilhelm Fröhlich took command in October 1938 and continued in the role until the boat was lost.[2]

During the war, U-36 undertook two patrols, but was sunk by a torpedo fired by HMS Salmon. She was lost with all hands.

Contents

  • Construction and design 1
    • Construction 1.1
    • Design 1.2
  • Service history 2
    • First patrol 2.1
    • Second patrol 2.2
  • Summary of raiding history 3
  • References 4
  • Bibliography 5
  • External links 6

Construction and design

Construction

U-36 is commissioned, December 1936

U-36 was ordered by the Kriegsmarine on 25 March 1935 as part of the German Plan Z and in violation of the Treaty of Versailles. Her keel was laid down in the AG Weser shipyard in Bremen as yard number 559 on 2 March 1936. After about eight months of construction, she was launched on 4 November 1936 and commissioned on 16 December under the command of Kptlt. Klaus Ewerth.[2]

Design

Like all Type VIIA submarines, U-36 displaced 626 tonnes (616 long tons) while surfaced and 745 t (733 long tons) when submerged. She was 64.51 m (211 ft 8 in) in overall length and had a 45.50 m (149 ft 3 in) pressure hull. U-36‍ '​s propulsion consisted of two MAN 6-cylinder 4-stroke M6V 40/46 diesel engines that totaled 2,100–2,310 PS (1,540–1,700 kW; 2,070–2,280 bhp). Her maximum rpm was between 470 and 485. The submarine was also equipped with two Brown, Boveri & Cie GG UB 720/8 electric motors that totaled 750 PS (550 kW; 740 shp). Their maximum rpm was 322. These engines gave U-36 a total speed of 17 knots (31 km/h; 20 mph) while surfaced and 8 knots (15 km/h; 9.2 mph) when submerged. This resulted in a range of 6,200 nmi (11,500 km; 7,100 mi) while traveling at 10 knots (19 km/h; 12 mph) on the surface and 73–94 nmi (135–174 km; 84–108 mi) at 4 knots (7.4 km/h; 4.6 mph) when submerged. The U-boat's test depth was 220 m (720 ft) but she could go as deep as 230–250 m (750–820 ft) without having her hull crushed.[4]

U-36‍ '​s armament consisted of five 53.3 cm (21 in) torpedo tubes (four located in the bow and one in the stern). She could have up to 11 torpedoes on board or 22 TMA or 33 TMB mines. U-36 was also equipped with a 8.8 cm SK C/35 naval gun and had 220 rounds for it stowed on board. Her anti-aircraft defenses consisted of one 2 cm (0.79 in) anti-aircraft gun.[4]

Service history

U-36 on a training exercise in 1936

First patrol

U-36 was at sea when the war broke out, having set out from Wilhelmshaven on 31 August 1939. She arrived in Kiel on 6 September and the following day departed for her first war patrol.[5] She then patrolled the North Sea for three weeks, hoping to catch ships traveling between Britain and Scandinavia carrying war supplies. During this patrol, the boat sank two steamers, Truro and Silesia—one British and the other from neutral Sweden—carrying British produce.

Seahorse, a British submarine, later fired on U-36 and subsequently claimed to have sunk her, although in fact the torpedo missed.[6] On 27 September Fröhlich and his crew captured another Swedish vessel, Algeria, which he proceeded to escort back to Germany as the patrol came to an end.[5][6] She returned to her berth in Kiel at the end of September, where she remained until December.[7] During her first patrol, U-36 was also credited with having laid the mine that sank the Norwegian freighter, Solaas.[8]

Second patrol

U-36 with another U-boat in the background, at sea in 1936

On 17 November 1939, Naval High Command (SKL) issued orders for U-36 and U-38 to scout the location for Basis Nord, a secret German naval base for raids on Allied shipping located off the Kola Peninsula and provided by the Soviet Union.[9] The mission required coded messages to be flashed to Soviet naval vessels patrolling the area preceding a Soviet escort to the prospective base location.[10]

However, U-36 never left the Norwegian Sea.[10] On 4 December 1939, two days out of Wilhelmshaven, she was spotted on the surface near the Norwegian port of Stavanger by the British submarine Salmon. Salmon then fired one torpedo at her unwitting counterpart. It sank U-36, all 40 of the sailors aboard were lost.[10][11] During the same patrol, the Salmon also torpedoed the light cruisers Leipzig and Nürnberg.[12]

Following the loss of U-36, U-38 continued towards the Kola Peninsula, successfully reaching the location and accomplished the scouting mission for Basis Nord.[10]

Summary of raiding history

Date Ship Nationality Tonnage Fate
15 September 1939 Truro  United Kingdom 974 Sunk[7]
25 September 1939 Silesia  Sweden 1,839 Sunk[7]
27 September 1939 Algeria  Sweden 1,619 Captured[5]
28 September 1939 Solaas  Norway 1,368 Sunk (mine)[8]

References

  1. ^ a b c d e "U-36 Type VIIA". ubootwaffe.net. Retrieved 1 July 2010. 
  2. ^ a b c d e Helgason, Guðmundur. "The Type VIIA boat U-36". German U-boats of WWII - uboat.net. Retrieved 19 December 2009. 
  3. ^ Helgason, Guðmundur. "War Patrols by U-36". German U-boats of WWII - uboat.net. Retrieved 19 December 2009. 
  4. ^ a b Gröner 1985, pp. 71, 74.
  5. ^ a b c "U-Boat Operations: U-36". ubootwaffe.net. Retrieved 21 August 2010. 
  6. ^ a b Blair 2000, p. 96.
  7. ^ a b c Helgason, Guðmundur. "Patrol info for U-36 (First patrol)". German U-boats of WWII - uboat.net. Retrieved 18 December 2009. 
  8. ^ a b "Solaas"Ship Details – . ubootwaffe.net. Retrieved 21 August 2010. 
  9. ^ Philbin 1994, p. 95.
  10. ^ a b c d Philbin 1994, p. 96
  11. ^ Helgason, Guðmundur. "Patrol info for U-36 (Second patrol)". German U-boats of WWII - uboat.net. Retrieved 18 December 2009. 
  12. ^ Roskill 1998, p. 58.

Bibliography

  • 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).  
  • Gröner, Erich (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. Die deutschen Kriegsschiffe 1815-1945 (in German) III (Koblenz:  
  • Blair, Clay (2000) [1996]. Hitler's U-boat War. 1: The Hunters, 1939–1942. New York: Modern Library.  
  • Philbin III, Tobias R. (1994). The Lure of Neptune: German-Soviet Naval Collaboration and Ambitions, 1919–1941. Chapel Hill: University of South Carolina Press.  
  • Roskill, Stephen (1998) [1960]. The Navy at War 1939–1945. Ware: Wordsworth Editions.  
  • Sharpe, Peter (1998). U-Boat Fact File. Midland Publishing.  

External links

  • Helgason, Guðmundur. "The Type VIIA boat U-36". German U-boats of WWII - uboat.net. Retrieved 17 February 2015. 
  • Hofmann, Markus. "U 36". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 8 December 2014. 

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