SM U-135 at sea, 1917
|Ordered:||27 May 1916|
|Builder:||Kaiserliche Werft Danzig|
|Laid down:||4 November 1916|
|Launched:||8 September 1917|
|Commissioned:||20 June 1918|
|General characteristics |
|Class and type:||German Type U 127 submarine|
|Height:||9.46 m (31 ft)|
|Draught:||4.26 m (14 ft 0 in)|
|Propulsion:||2 × propeller shafts|
|Test depth:||75 m (246 ft)|
SM U-135[Note 1] was a German Type U 127 U-boat of the Imperial German Navy during World War I. Built at the Kaiserliche Werft Danzig, the U-boat was laid down on 4 November 1916, launched on 8 September 1917 and commissioned 20 June 1918.
In November 1918, U-135 was ordered to help put down the German Navy mutiny at Wilhelmshaven. Along with the 4th Torpedo Boat Half-Flotilla, U-135 ended the mutiny aboard two German battleships SMS Thüringen and SMS Helgoland by threatening to torpedo the ships.
Prior to U-135 being scuttled by the Royal Navy in the early 1920s, her engines and various other items of equipment were stripped by a team of 25 students led by Technical Officer Richard Finney [1888-1953] under the auspices of J. F. Driver from the then Loughborough College. This equipment was reassembled initially in a wooden hut in Packe Street, Loughborough, and later in a purpose built generating station opened in 1937. They were finally taken out of use, and replaced, in 1949.
- "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
- Helgason, Guðmundur. "WWI U-boats: U 135". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 29 September 2010.
- Gröner 1991, pp. 15-16.
- Helgason, Guðmundur. "WWI U-boat commanders: Johannes Spieß (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.
- Leonard Cantor, Loughborough University of Technology: Past and Present, 1990, LUT, p.50.
- 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.
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