UB-148 at sea, a U-boat similar to UB-56.
|Ordered:||20 May 1916|
|Builder:||AG Weser, Bremen|
|Cost:||3,276,000 German Papiermark|
|Launched:||6 June 1917|
|Commissioned:||19 July 1917|
|Fate:||sunk 19 December 1917 at Coordinates: by a mine, 37 dead|
|General characteristics |
|Class and type:||German Type UB III submarine|
|Length:||55.85 m (183 ft 3 in) (o/a)|
|Beam:||5.80 m (19 ft)|
|Draught:||3.72 m (12 ft 2 in)|
|Test depth:||50 m (160 ft)|
|Complement:||3 officers, 31 men|
|Service record as UB-56|
|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 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
|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|
- "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
- Tonnages are in gross register tons
- Rössler 1979, p. 55.
- Gröner 1991, pp. 25-30.
- 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.
- Helgason, Guðmundur. "Ships hit by UB 56". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 3 February 2015.
- 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.