SM UB-45 a u-boat similar to UB-41
|Ordered:||22 July 1915|
|Builder:||Blohm & Voss, Hamburg|
|Cost:||1,152,000 German Papiermark|
|Launched:||6 May 1916|
|Completed:||25 August 1916|
|Commissioned:||25 August 1916|
|Fate:||sunk by mine 5 October 1917|
|Class and type:||German Type UB II submarine|
|Draught:||3.69 m (12 ft 1 in)|
|Test depth:||50 m (160 ft)|
|Complement:||2 officers, 21 men|
|Notes:||42-second diving time|
A German Type UB II submarine, UB-41 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 Körting six-cylinder diesel engines producing a total 284 metric horsepower (280 shp; 209 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).
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 6,450 nautical miles (11,950 km; 7,420 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-41 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.
Construction and career
The submarine sank eight ships in thirteen patrols. They included the William Cory and Son collier SS Harrow, which UB-41 torpedoed in the North Sea off Robin Hood's Bay on 8 September 1917. UB-41 was struck by a mine, possibly a German one, and sank in the North Sea on 5 October 1917.
Summary of raiding history
|21 November 1916||Thyholmen||259||Captured as a prize|
|18 January 1917||Cetus||139||Damaged|
|19 April 1917||Ellida||1,124||Sunk|
|22 May 1917||Lanthorn||2,299||Sunk|
|23 May 1917||Monarch||1,318||Sunk|
|12 June 1917||Alwyn||73||Sunk|
|13 June 1917||Silverburn||284||Sunk|
|14 June 1917||Angantyr||1,359||Sunk|
|6 August 1917||Talisman||153||Sunk|
|8 September 1917||Harrow||1,777||Sunk|
|3 October 1917||Clydebrae||502||Damaged|
- "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. 64.
- Gröner 1991, pp. 23-25.
- Rössler 1979, p. 65.
- Helgason, Guðmundur. "WWI U-boat commanders: Friedrich Karl Sichart von Sichartshofen". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 February 2015.
- Helgason, Guðmundur. "WWI U-boat commanders: Günther Krause". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 February 2015.
- Helgason, Guðmundur. "WWI U-boat commanders: Max Ploen". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 February 2015.
- Helgason, Guðmundur. "Ships hit by UB 41". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 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.