SM UB-56

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UB 148 at sea 2.jpeg
UB-148 at sea, a U-boat similar to UB-56.
History
German Empire
Name: UB-56
Ordered: 20 May 1916[1]
Builder: AG Weser, Bremen
Cost: 3,276,000 German Papiermark
Yard number: 268
Launched: 6 June 1917[2]
Commissioned: 19 July 1917[2]
Fate: sunk 19 December 1917 at 50°58′N 01°21′E / 50.967°N 1.350°E / 50.967; 1.350Coordinates: 50°58′N 01°21′E / 50.967°N 1.350°E / 50.967; 1.350 by a mine, 37 dead[2]
General characteristics [2]
Class and type: German Type UB III submarine
Displacement:
  • 516 t (508 long tons) surfaced
  • 646 t (636 long tons; 712 short tons) submerged
Length: 55.85 m (183 ft 3 in) (o/a)
Beam: 5.80 m (19 ft)
Draught: 3.72 m (12 ft 2 in)
Propulsion:
Speed:
  • 13.4 knots (24.8 km/h; 15.4 mph) surfaced
  • 7.8 knots (14.4 km/h; 9.0 mph) submerged
Range:
  • 9,020 nmi (16,710 km; 10,380 mi) at 6 knots (11 km/h; 6.9 mph) surfaced
  • 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth: 50 m (160 ft)
Complement: 3 officers, 31 men[2]
Armament:
Service record as UB-56
Part of:
Commanders:
  • Oblt.z.S. Hans Valentier[3]
  • 19 July – 19 December 1917
Operations: 4 patrols
Victories: 4 merchant ships sunk (5,387 GRT)

SM UB-56 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the Flanders Flotilla of the German Imperial Navy on 19 July 1917 as SM UB-56.[Note 1]

She operated as part of the Flanders Flotilla based in Zeebrugge. UB-56 was sunk at 23:41 on 19 December 1917 at 50°58′N 01°21′E / 50.967°N 1.350°E / 50.967; 1.350 after striking a mine, 37 crew members lost their lives in the event.[2]

Construction[edit]

She was built by AG Weser, Bremen and following just under a year of construction, launched at Bremen on 6 June 1917. UB-56 was commissioned later that same year . Like all Type UB III submarines, UB-56 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-56 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9,020 nautical miles (16,710 km; 10,380 mi). UB-56 had a displacement of 516 t (508 long tons) while surfaced and 646 t (636 long tons; 712 short tons) when submerged. Her engines enabled her to travel at 13.4 knots (24.8 km/h; 15.4 mph) when surfaced and 7.8 knots (14.4 km/h; 9.0 mph) when submerged.

Summary of raiding history[edit]

Date Name Nationality Tonnage[Note 2] Fate[4]
13 November 1917 Atlas  United Kingdom 989 Sunk
13 November 1917 Axwell  United Kingdom 1,442 Sunk
17 November 1917 Lalen Mendi  Spain 2,183 Sunk
21 November 1917 Maine  France 773 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. ^ Rössler 1979, p. 55.
  2. ^ a b c d e f Gröner 1991, pp. 25-30.
  3. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Valentiner (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 3 February 2015. 
  4. ^ Helgason, Guðmundur. "Ships hit by UB 56". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 3 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.