SM U-41 (Germany)

Last updated
History
War Ensign of Germany 1903-1918.svg German Empire
NameU-41
Ordered12 June 1912
BuilderGermaniawerft, Kiel
Yard number201
Laid down22 April 1913
Launched10 October 1914
Commissioned1 February 1915
Fate24 September 1915 – Sunk by gunfire from Q-Ship Baralong in Western Approaches 49.10N 07.23W.. 35 dead and 2 survivors.
General characteristics
Class and type Type U 31 submarine
Displacement
  • 685  t (674 long tons) (surfaced)
  • 878 t (864 long tons) (submerged)
Length
Beam
  • 6.32 m (20 ft 9 in) (o/a)
  • 4.05 m (13 ft 3 in) (pressure hull)
Draught3.56 m (11 ft 8 in)
Installed power
Propulsion
  • 2 × shafts
  • 2 × 1.60 m (5 ft 3 in) propellers
Speed
  • 16.4 knots (30.4 km/h; 18.9 mph) (surfaced)
  • 9.7 knots (18.0 km/h; 11.2 mph) (submerged)
Range
  • 8,790  nmi (16,280 km; 10,120 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced)
  • 80 nmi (150 km; 92 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Test depth50 m (164 ft 1 in)
Boats & landing
craft carried		1 dinghy
Complement4 officers, 31 enlisted
Armament
Service record
Part of:
  • II Flotilla
  • Unknown start – 24 September 1915
Commanders:
  • Kptlt. Claus Hansen [1]
  • 1 February – 24 September 1915
Operations: 4 patrols
Victories:
  • 28 merchant ships sunk
    (58,546  GRT)
  • 1 merchant ship damaged
    (4,409  GRT)
  • 1 merchant ship taken as prize
    (355  GRT)

SM U-41 [lower-alpha 1] was one of the 329 submarines serving in the Imperial German Navy in World War I. U-41 engaged in naval warfare and took part in the First Battle of the Atlantic.

Contents

Design

Type U 31 submarines were double-hulled, ocean-going submarines similar to Type 23 and Type 27 subs in dimensions and differed only slightly in propulsion and speed. They were considered very good high sea boats with average manoeuvrability and good surface steering. [2]

U-41 had an overall length of 64.70 m (212 ft 3 in), her pressure hull was 52.36 m (171 ft 9 in) long. The boat's beam was 6.32 m (20 ft 9 in) (o/a), while the pressure hull measured 4.05 m (13 ft 3 in). Type 31s had a draught of 3.56 m (11 ft 8 in) with a total height of 7.68–8.04 m (25 ft 2 in – 26 ft 5 in). The boats displaced a total of 971 tonnes (956 long tons); 685 t (674 long tons) when surfaced and 878 t (864 long tons) when submerged. [2]

U-41 was fitted with two Germania 6-cylinder two-stroke diesel engines with a total of 1,850 metric horsepower (1,361  kW ; 1,825  bhp ) for use on the surface and two Siemens-Schuckert double-acting electric motors with a total of 1,200 PS (883 kW; 1,184 shp) for underwater use. These engines powered two shafts each with a 1.60 m (5 ft 3 in) propeller, which gave the boat a top surface speed of 16.4 knots (30.4 km/h; 18.9 mph), and 9.7 knots (18.0 km/h; 11.2 mph) when submerged. Cruising range was 8,790 nautical miles (16,280 km; 10,120 mi) at 8 knots (15 km/h; 9.2 mph) on the surface, and 80 nmi (150 km; 92 mi) at 5 knots (9.3 km/h; 5.8 mph) under water. Diving depth was 50 m (164 ft 1 in). [2]

The U-boat was armed with four 50 cm (20 in) torpedo tubes, two fitted in the bow and two in the stern, and carried 6 torpedoes. Additionally U-41 was equipped in 1915 with one 8.8 cm (3.5 in) Uk L/30 deck gun. The boat's complement was 4 officers and 31 enlisted. [2]

Fate

After the British heard of the sinking of the Anglo-Columbian on 23 December, HMS Wyandra, a British Q-ship in the guise of the American-flagged merchantman Baralong set out from Falmouth to present itself as a target. [3]

U-41 stopped the 6,651  gross register tons  (GRT) merchantman Urbino on 24 December about 70 miles from Bishop Rock .U-41 sent a boarding party aboard to inspect the cargo. After finding war material on board, the Germans put the merchant crew off the ship in the lifeboats. U-41 was in the process of sinking Urbino with gunfire when, "Baralong", arrived on the scene at around 9:45, flying an American flag. Baralong turned away so that U-41 would be forced to use her diesel engines to catch up, and in doing so be fully surfaced. U-41 signalled Baralong to send their papers across in a ships boat. The crew of Baralong went through the motions of preparing a boat, while at same time readying for combat, and in doing so closed the distance to 700 yards and turned so her hidden guns were able to bear. Wyandra then fired its guns accompanied by rifle fire from Marines onboard. U-41 got off one shell in return before the crew abandoned the deck gun. One of Wyandras shots hit the submarine's conning tower killing the commander Kapitänleutnant Hansen and six others. After other hits, U-41 listed then dived but then rose again before sinking - only Oberleutnant zur See Iwan Crompton (badly wounded) and the helmsman escaping [lower-alpha 2] to be picked up along with the 42 from the Urbino by Wyandra. [3] After Crompton returned to Germany in 1917, he claimed Wyandra had run down the lifeboat he was in.

It was also claimed that the Wyandra had not struck the American flag before firing which was a violation of the rules of war; while the use of a False Flag was allowed, [5] it was required that a belligerent identify itself before initiating hostilities.

The event generated widespread outrage in Germany, especially among Kriegsmarine officers. The sinking was also commemorated in a propaganda medal designed by the German medallist Karl Goetz.

Summary of raiding history

DateNameNationalityTonnage [lower-alpha 3] Fate [6]
2 May 1915 America Flag of Norway.svg  Norway 3,706Sunk
2 May 1915 Cruiser Civil Ensign of the United Kingdom.svg  United Kingdom 146Sunk
2 May 1915 Martaban Civil Ensign of the United Kingdom.svg  United Kingdom 148Sunk
2 May 1915 Mercury Civil Ensign of the United Kingdom.svg  United Kingdom 222Sunk
2 May 1915 St. George Civil Ensign of the United Kingdom.svg  United Kingdom 215Sunk
3 May 1915 Oscar Flag of Norway.svg  Norway 107Sunk
3 May 1915 Roxane Flag of Sweden.svg  Sweden 355Captured as prize
25 May 1915 Nebraskan Flag of the United States (1912-1959).svg  United States 4,409Damaged
26 May 1915 Morwenna Civil Ensign of the United Kingdom.svg  United Kingdom 1,414Sunk
27 May 1915 Cadeby Civil Ensign of the United Kingdom.svg  United Kingdom 1,130Sunk
28 May 1915 Ethiope Civil Ensign of the United Kingdom.svg  United Kingdom 3,794Sunk
28 May 1915 Spennymoor Civil Ensign of the United Kingdom.svg  United Kingdom 2,733Sunk
28 May 1915 Tullochmoor Civil Ensign of the United Kingdom.svg  United Kingdom 3,520Sunk
29 May 1915 Cysne Flag of Portugal.svg  Portugal 623Sunk
29 May 1915 Dixiana Civil Ensign of the United Kingdom.svg  United Kingdom 3,329Sunk
29 May 1915 Glenlee Civil Ensign of the United Kingdom.svg  United Kingdom 4,140Sunk
16 July 1915 Balva Flag of Russia.svg  Russian Empire 1,165Sunk
17 July 1915 General Radetzky Flag of Russia.svg  Russian Empire 2,118Sunk
24 July 1915 Grangewood Civil Ensign of the United Kingdom.svg  United Kingdom 3,422Sunk
25 July 1915 Celtic Civil Ensign of the United Kingdom.svg  United Kingdom 264Sunk
25 July 1915 Cydonia Civil Ensign of the United Kingdom.svg  United Kingdom 259Sunk
25 July 1915 Emblem Civil Ensign of the United Kingdom.svg  United Kingdom 157Sunk
25 July 1915 Gadwall Civil Ensign of the United Kingdom.svg  United Kingdom 192Sunk
25 July 1915 Honoria Civil Ensign of the United Kingdom.svg  United Kingdom 179Sunk
25 July 1915 Leelenaw Flag of the United States (1912-1959).svg  United States 1,923Sunk
28 July 1915 Trondhjemsfjord Flag of Norway.svg  Norway 4,248Sunk
23 September 1915 Anglo-Colombian Civil Ensign of the United Kingdom.svg  United Kingdom 4,792Sunk
23 September 1915 Chancellor Civil Ensign of the United Kingdom.svg  United Kingdom 4,586Sunk
23 September 1915 Hesione Civil Ensign of the United Kingdom.svg  United Kingdom 3,363Sunk
24 September 1915 Urbino Civil Ensign of the United Kingdom.svg  United Kingdom 6,651Sunk

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References

Notes

  1. ↑ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine
  2. ↑ Chatterton gives the rest of the crew as five officers and twenty five men [4]
  3. ↑ Tonnages are in gross register tons, a measure of volumetric capacity

Citations

  1. ↑ Helgason, Guðmundur. "WWI U-boat commanders: Claus Hansen". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 12 January 2015.
  2. 1 2 3 4 Gröner 1991, p. 6.
  3. 1 2 Chatterton 1922, pp. 27–31.
  4. ↑ Chatterton 1922, p. 30.
  5. ↑ deHaven-Smith, Lance (2013). Conspiracy Theory in America. Austin: University of Texas Press. p. 225.
  6. ↑ Helgason, Guðmundur. "Ships hit by U 41". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 12 January 2015.

Bibliography

49°10′N7°20′W / 49.167°N 7.333°W / 49.167; -7.333

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