SM UB-32

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For other ships with the same name, see German submarine U-32.
UB-32 redirects here. For the Soviet rocket launcher, see S-5 rocket
SM UB 45.jpg
SM UB-45 a u-boat similar to UB-32
History
German Empire
Name: UB-32
Ordered: 22 July 1915[1]
Builder: Blohm & Voss, Hamburg[1]
Cost: 1,152,000 German Papiermark[2]
Yard number: 256[1]
Launched: 4 December 1915[1]
Completed: 10 April 1916[1]
Commissioned: 11 April 1916[2]
Fate:
  • Lost after 17 September 1917;
  • Possibly sunk on 22 September 1917[2]
General characteristics [2]
Class and type: German Type UB II submarine
Displacement:
  • 274 t (270 long tons) surfaced
  • 303 t (298 long tons) submerged
Length:
Beam:
  • 4.37 m (14 ft 4 in) o/a
  • 3.85 m (12 ft 8 in) pressure hull
Draught: 3.69 m (12 ft 1 in)
Propulsion:
Speed:
  • 9.06 knots (16.78 km/h; 10.43 mph) surfaced
  • 5.71 knots (10.57 km/h; 6.57 mph) submerged
Range:
  • 7,030 nmi (13,020 km; 8,090 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: 42-second diving time
Service record
Part of:
  • Imperial German Navy:
  • Baltic Flotilla
  • 25 May 1916 – 24 February 1917
  • Flandern Flotilla
  • 24 February – 22 September 1917
Commanders:
  • Kptlt. Ludwig Karl Sahl[3]
  • 11 April – 4 December 1916
  • Oblt.z.S. Karl Ruprecht[4]
  • 5 December 1916 – 24 February 1917
  • Kptlt. Max Viebeg[5]
  • 25 February – 5 August 1917
  • Oblt.z.S. Benno von Ditfurth[6]
  • 6 August – 22 September 1917
Operations: 16 patrols
Victories:
  • 22 merchant ships sunk (42,893 GRT)
  • 4 merchant ships damaged (19,933 GRT)

SM UB-32 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 22 July 1915 and launched on 4 December 1915. She was commissioned into the German Imperial Navy on 11 April 1916 as SM UB-32.[Note 1]

The submarine sank 22 ships in 16 patrols. She was last heard from on 17 September 1917 and may have been bombed and sunk by Royal Naval Air Service aircraft in the English Channel on 22 September 1917.[2]

Design[edit]

A German Type UB II submarine, UB-32 had a displacement of 274 tonnes (270 long tons) when at the surface and 303 tonnes (298 long tons) while submerged. She had a total length of 36.90 m (121 ft 1 in), a beam of 4.37 m (14 ft 4 in), and a draught of 3.69 m (12 ft 1 in). The submarine was powered by two Benz six-cylinder diesel engines producing a total 270 metric horsepower (270 shp; 200 kW), two Siemens-Schuckert electric motors producing 280 metric horsepower (210 kW; 280 shp), 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 9.06 knots (16.78 km/h; 10.43 mph) and a maximum submerged speed of 5.71 knots (10.57 km/h; 6.57 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 7,030 nautical miles (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-32 was fitted with two 50 centimetres (20 in) torpedo tubes, four torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.[2]

Summary of raiding history[edit]

Date Name Nationality Tonnage[Note 2] Fate[7]
13 March 1917 Comrades  United Kingdom 58 Sunk
13 March 1917 De Tien Kinders  Belgium 44 Sunk
13 March 1917 Gold Seeker  United Kingdom 62 Sunk
30 March 1917 HMS Penshurst  Royal Navy 1,191 Damaged
31 March 1917 Boaz  United Kingdom 111 Sunk
31 March 1917 Gippeswic  United Kingdom 116 Sunk
31 March 1917 HMHS Gloucester Castle  Royal Navy 7,999 Damaged
31 March 1917 Queen Louise  United Kingdom 4,879 Damaged
1 April 1917 Endymion  United Kingdom 73 Sunk
4 April 1917 Parana  Brazil 4,461 Sunk
5 April 1917 Ernest Legouve  France 2,246 Sunk
24 April 1917 Marie Blanche  France 359 Sunk
25 April 1917 Ballarat  United Kingdom 11,120 Sunk
27 April 1917 Alfalfa  United Kingdom 2,993 Sunk
27 April 1917 Beemah  United Kingdom 4,750 Sunk
28 April 1917 Pursue  United Kingdom 37 Sunk
29 April 1917 Ellen Harrison  United Kingdom 103 Sunk
29 April 1917 Mermaid  United Kingdom 76 Sunk
30 April 1917 Portbail  France 378 Sunk
8 June 1917 Vinaes  Norway 1,107 Sunk
11 June 1917 Mar Cor  Kingdom of Italy 3,257 Sunk
12 June 1917 South Point  United Kingdom 4,258 Sunk
14 June 1917 Vigoureuse  France 152 Sunk
5 July 1917 Havbris  Norway 677 Sunk
6 July 1917 Wabasha  United Kingdom 5,864 Damaged
26 August 1917 Feltre  Kingdom of Italy 6,455 Sunk

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. ^ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

References[edit]

  1. ^ a b c d e Rössler 1979, p. 64.
  2. ^ a b c d e f g Gröner 1991, pp. 23-25.
  3. ^ Helgason, Guðmundur. "WWI U-boat commanders: Ludwig Karl Sahl". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015. 
  4. ^ Helgason, Guðmundur. "WWI U-boat commanders: Karl Ruprecht". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015. 
  5. ^ Helgason, Guðmundur. "WWI U-boat commanders: Max Viebeg (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015. 
  6. ^ Helgason, Guðmundur. "WWI U-boat commanders: Benno von Ditfurth". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015. 
  7. ^ Helgason, Guðmundur. "Ships hit by UB 32". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 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. 

Coordinates: 51°45′N 2°5′E / 51.750°N 2.083°E / 51.750; 2.083