SM UB-108

UB-148 at sea, a U-boat similar to UB-108.
History
German Empire
NameUB-108
Ordered6 / 8 February 1917[2]
BuilderBlohm & Voss, Hamburg
Cost3,714,000 German Papiermark
Yard number314
Launched21 July 1917[1]
Commissioned1 March 1918[1]
FateLost July 1918 in the English Channel.[1]
General characteristics [1]
Class and typeType UB III submarine
Displacement
  • 519 t (511 long tons) surfaced
  • 649 t (639 long tons) submerged
Length55.30 m (181 ft 5 in) (o/a)
Beam5.80 m (19 ft)
Draught3.70 m (12 ft 2 in)
Propulsion
  • 2 × propeller shaft
  • 2 × MAN-Vulcan four-stroke 6-cylinder diesel engines, 1,085 bhp (809 kW)
  • 2 × Siemens-Schuckert electric motors, 780 shp (580 kW)
Speed
  • 13.3 knots (24.6 km/h; 15.3 mph) surfaced
  • 7.5 knots (13.9 km/h; 8.6 mph) submerged
Range
  • 7,420 nmi (13,740 km; 8,540 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 depth50 m (160 ft)
Complement3 officers, 31 men[1]
Armament
Service record
Part of:
Commanders:
  • Oblt.z.S. Wilhelm Amberger[3]
  • 1 March – 2 July 1918
Operations: 3 patrols
Victories: 2 merchant ships sunk
(2,655 GRT)

SM UB-108 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 German Imperial Navy on 1 March 1918 as SM UB-108.[Note 1]

UB-108 was lost in July 1918 in the English Channel.[1]

Construction

She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 21 July 1917. UB-108 was commissioned early the next year under the command of Oblt.z.S. Wilhelm Amberger. Like all Type UB III submarines, UB-108 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-108 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,420 nautical miles (13,740 km; 8,540 mi). UB-108 had a displacement of 519 t (511 long tons) while surfaced and 649 t (639 long tons) when submerged. Her engines enabled her to travel at 13.3 knots (24.6 km/h; 15.3 mph) when surfaced and 7.4 knots (13.7 km/h; 8.5 mph) when submerged.

Summary of raiding history

Date Name Nationality Tonnage[Note 2] Fate[4]
7 June 1918 Diana  United Kingdom 1,119 Sunk
12 June 1918 Kennington  United Kingdom 1,536 Sunk

References

Notes

  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

  1. ^ a b c d e f Gröner 1991, pp. 25–30.
  2. ^ Rössler 1979, p. 66.
  3. ^ Helgason, Guðmundur. "WWI U-boat commanders: Wilhelm Amberger". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.
  4. ^ Helgason, Guðmundur. "Ships hit by UB 108". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.

Bibliography

  • 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. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
  • Rössler, Eberhard (1979). Die deutschen U-Boote und ihre Werften: eine Bilddokumentation über den deutschen U-Bootbau; in zwei Bänden (in German). Vol. I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.
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  • SM UB-48
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  • SM UB-99
  • SM UB-100
  • SM UB-101
  • SM UB-102
  • SM UB-103
  • SM UB-104
  • SM UB-105
  • SM UB-106
  • SM UB-107
  • SM UB-108
  • SM UB-109
  • SM UB-110
  • SM UB-111
  • SM UB-112
  • SM UB-113
  • SM UB-114
  • SM UB-115
  • SM UB-116
  • SM UB-117
  • SM UB-118
  • SM UB-119
  • SM UB-120
  • SM UB-121
  • SM UB-122
  • SM UB-123
  • SM UB-124
  • SM UB-125
  • SM UB-126
  • SM UB-127
  • SM UB-128
  • SM UB-129
  • SM UB-130
  • SM UB-131
  • SM UB-132
  • SM UB-133
  • SM UB-136
  • SM UB-142
  • SM UB-143
  • SM UB-144
  • SM UB-145
  • SM UB-148
  • SM UB-149
  • SM UB-150
  • SM UB-154
  • SM UB-155
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Shipwrecks and maritime incidents in July 1918
Shipwrecks
  • 2 Jul: USS Covington
  • 4 Jul: SM U-20
  • 5 Jul: Columbia
  • 12 Jul: Kawachi
  • 14 Jul: SM UC-77, Djemnah, Waitemata
  • 16 Jul: Garibaldino
  • 17 Jul: Carpathia
  • 19 Jul: Australien, USS San Diego, SM UB-110
  • 20 Jul: HMS E34, Justicia, SM UB-124
  • 24 Jul: HMS Pincher
  • Unknown date: USS Oosterdijk, SM UB-65, SM UB-108
Other incidents
  • 1 Jul: USS Covington
  • 6 Jul: HMS C25
  • 19 Jul: Justicia
  • 23 Jul: HMT Boorara, Minnekahda, USS N-3, USS Preble
  • Unknown date: San Jacinto