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History |
German Empire |
Name | U-104 |
Ordered | 15 September 1915 |
Builder | AG Weser, Bremen |
Yard number | 255 |
Laid down | 4 August 1916 |
Launched | 3 July 1917 |
Commissioned | 12 August 1917 |
Fate | Depth-charged and sunk 25 April 1918. 41 dead, 1 survivor. |
General characteristics |
Class and type | German Type U 57 submarine |
Displacement |
- 750 t (740 long tons) surfaced
- 952 t (937 long tons) submerged
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Length | |
Beam |
- 6.32 m (20 ft 9 in) (o/a)
- 4.05 m (13 ft 3 in) (pressure hull)
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Height | 8.25 m (27 ft 1 in) |
Draught | 3.65 m (12 ft) |
Installed power |
- 2 × 2,400 PS (1,765 kW; 2,367 shp) surfaced
- 2 × 1,200 PS (883 kW; 1,184 shp) submerged
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Propulsion | 2 shafts, 2 × 1.65 m (5 ft 5 in) propellers |
Speed |
- 16.5 knots (30.6 km/h; 19.0 mph) surfaced
- 8.8 knots (16.3 km/h; 10.1 mph) submerged
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Range |
- 10,100 nmi (18,700 km; 11,600 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
- 56 nmi (104 km; 64 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
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Test depth | 50 m (164 ft 1 in) |
Complement | 4 officers, 32 enlisted |
Armament | |
Service record |
Part of: |
- II Flotilla
- 1 October 1917 – 25 April 1918
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Commanders: |
- Kptlt. Kurt Bernis[2]
- 1 October 1917 – 25 April 1918
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Operations: |
4 patrols |
Victories: |
9 merchant ships sunk (14,721 GRT) |
SM U-104[Note 1] was a German Type U 57 U-boat during the First World War. U-104 was built at AG Weser in Bremen, launched on 3 July 1917 and commissioned on 12 August 1917. She completed four patrols under Kptlt. Kurt Bernis and was responsible for the sinking of nine vessels of a total of 14,721 gross register tons (GRT).[3]
On 25 April 1918 the U-104 was engaged by USS Cushing in St. George's Channel and severely damaged. Later the same day HMS Jessamine came upon her and dropped further depth-charges, sinking her and leaving but a single survivor of her 42-member crew. The wreckage lies at position 51°59′N 6°26′W / 51.983°N 6.433°W / 51.983; -6.433.
Summary of raiding history
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- ^ "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
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Kurt Bernis". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 26 January 2015.
- ^ Helgason, Guðmundur. "WWI U-boats: U 104". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2010.
- ^ Helgason, Guðmundur. "Ships hit by U 104". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 26 January 2015.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
Shipwrecks and maritime incidents in April 1918 |
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Shipwrecks |
- 1 Apr: HMS Falcon
- 3 Apr: AG-11, AG-12, AG-16, HMS E1, HMS E9
- 4 Apr: HMS Bittern, HMS C26, HMS E8
- 5 Apr: HMS C27, HMS C35
- 7 Apr: Rye
- 8 Apr: HMS E19
- 10 Apr: Benedetto Cairoli, Faulx
- 11 Apr: USS Mary B. Garner, UB-33
- 17 Apr: UB-82
- 19 Apr: UB-78
- 21 Apr: UB-71
- 22 Apr: Prinz August Wilhelm, UB-55
- 23 Apr: HMS Brilliant, HMS C3, HMS Sirius, HMS Thetis
- 25 Apr: U-104
- 29 Apr: Priarial
- 30 Apr: UB-85
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Other incidents | |
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