SM UB-22

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SM UB 45.jpg
SM UB-45 a u-boat similar to UB-22
History
German Empire
Name: UB-22
Ordered: 30 April 1915[1]
Builder: Blohm & Voss, Hamburg[1]
Yard number: 252[1]
Launched: 9 October 1915[1]
Completed: 1 March 1916[1]
Commissioned: 2 March 1916
Fate: sunk by mine 19 January 1918
General characteristics [2]
Class and type: German Type UB II submarine
Displacement:
  • 263 t (259 long tons) surfaced
  • 292 t (287 long tons) submerged
Length:
Beam:
  • 4.36 m (14 ft 4 in) o/a
  • 3.85 m (13 ft) pressure hull
Draught: 3.70 m (12 ft 2 in)
Propulsion:
Speed:
  • 9.15 knots (16.95 km/h; 10.53 mph) surfaced
  • 5.81 knots (10.76 km/h; 6.69 mph) submerged
Range:
  • 6,450 nautical miles (11,950 km; 7,420 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced
  • 45 nmi (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth: 50 m (160 ft)
Complement: 2 officers, 21 men
Armament:
Notes: 45-second diving time
Service record
Part of:
  • Imperial German Navy:
  • I Flotilla
  • 14 April 1916 – 1 February 1917
  • II Flotilla
  • 1 February – 22 September 1917
  • V Flotilla
  • 22 September 1917 – 19 January 1918
Commanders:
  • Oblt.z.S. Bernhard Putzier[3]
  • 2 March 1916 – 16 April 1917
  • Oblt.z.S. Karl Wacker[4]
  • 17 April 1917 – 19 January 1918
Operations: 18 patrols
Victories: 27 merchant ships sunk (16,645 GRT)

SM UB-22[Note 1] was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 30 April 1915 and launched on 9 October 1915. She was commissioned into the German Imperial Navy on 2 March 1915 as SM UB-22. The submarine sank 29 ships in 18 patrols for a total of 20,224 gross register tons (GRT).[5] UB-22 was mined and sunk in the same accident with the torpedoboat S 16 in the North Sea at 54°40′N 6°32′E / 54.667°N 6.533°E / 54.667; 6.533Coordinates: 54°40′N 6°32′E / 54.667°N 6.533°E / 54.667; 6.533 on 19 January 1918 in a British minefield.

Design[edit]

A German Type UB II submarine, UB-22 had a displacement of 263 tonnes (259 long tons) when at the surface and 292 tonnes (287 long tons) while submerged. She had a total length of 36.13 m (118 ft 6 in), a beam of 4.36 m (14 ft 4 in), and a draught of 3.70 m (12 ft 2 in). The submarine was powered by two Körting six-cylinder, four-stroke diesel engines each producing a total 280 metric horsepower (280 shp; 210 kW), a Siemens-Schuckert electric motor producing 206 kilowatts (276 shp; 280 PS), and one propeller shaft. She was capable of operating at depths of up to 50 metres (160 ft).[2]

The submarine had a maximum surface speed of 9.15 knots (16.95 km/h; 10.53 mph) and a maximum submerged speed of 5.81 knots (10.76 km/h; 6.69 mph). When submerged, she could operate for 45 nautical miles (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 6,650 nautical miles (12,320 km; 7,650 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-22 was fitted with two 50 centimetres (20 in) torpedo tubes, four torpedoes, and one 5 centimetres (2.0 in) SK L/40 deck gun. She had a complement of twenty-one crew members and two officers and a 45-second dive time.[2]

Summary of raiding history[edit]

Date Name Nationality Tonnage[Note 2] Fate[6]
20 October 1916 Drafn  Norway 774 Sunk
21 October 1916 Antoinette  Sweden 912 Sunk
21 October 1916 Theodor  Norway 234 Sunk
22 October 1916 Caerloch  Norway 659 Sunk
22 October 1916 Gunn  Norway 483 Sunk
27 October 1916 Sif  Denmark 377 Sunk
29 October 1916 Falkefjell  Norway 1,131 Sunk
5 February 1917 Resolute  United Kingdom 125 Sunk
6 February 1917 Adelaide  United Kingdom 133 Sunk
6 February 1917 Romeo  United Kingdom 114 Sunk
6 February 1917 Rupert  United Kingdom 114 Sunk
7 February 1917 Boyne Castle  United Kingdom 245 Sunk
7 February 1917 Shakespeare  United Kingdom 210 Sunk
9 February 1917 Benbow  United Kingdom 172 Sunk
9 February 1917 Duke of York  United Kingdom 150 Sunk
10 February 1917 Athenian  United Kingdom 171 Sunk
10 February 1917 Bellax  Norway 1,107 Sunk
10 February 1917 Ireland  United Kingdom 152 Sunk
28 March 1917 Oakwell  United Kingdom 248 Sunk
29 April 1917 Dilston Castle  United Kingdom 129 Sunk
30 April 1917 Argo  United Kingdom 131 Sunk
16 June 1917 Inge  Denmark 336 Sunk
4 August 1917 Azira  United Kingdom 1,144 Sunk
6 August 1917 Jenny  Denmark 293 Sunk
6 August 1917 Narcissus  United Kingdom 58 Sunk
7 November 1917 Suntrap  United Kingdom 1,353 Sunk
13 December 1917 Garthwaite  United Kingdom 5,690 Sunk

References[edit]

Notes[edit]

  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. ^ Tonnages are in gross register tons

Citations[edit]

  1. ^ a b c d e Rössler 1979, p. 64.
  2. ^ a b c Gröner 1991, pp. 23-25.
  3. ^ Helgason, Guðmundur. "WWI U-boat commanders: Bernhard Putzier". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 29 January 2015. 
  4. ^ Helgason, Guðmundur. "WWI U-boat commanders: Karl Wacker". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 29 January 2015. 
  5. ^ Bendert 2000, p. 195.
  6. ^ Helgason, Guðmundur. "Ships hit by UB-22". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 29 January 2015. 

Bibliography[edit]

  • Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7. 
  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4. 
  • Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 – 1945. Die deutschen U-Boote und ihre Werften (in German). I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.