SM UB-78
SM UB-78 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 20 October 1917 as SM UB-78.[Note 1] Mined off Dover on 19 April 1918 all 35 crew lost.[3]
UB-148 at sea, a U-boat similar to UB-78. | |
History | |
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Name: | UB-78 |
Ordered: | 23 September 1916[1] |
Builder: | Blohm & Voss, Hamburg |
Cost: | 3,338,000 German Papiermark |
Yard number: | 307 |
Launched: | 2 June 1917[2] |
Commissioned: | 20 October 1917[2] |
Fate: | Mined off Dover in position 51°01′N 01°17′E on 19 April 1918 all 35 crew lost.[3] |
General characteristics | |
Class and type: | German Type UB III submarine |
Displacement: |
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Length: | 55.30 m (181 ft 5 in) (o/a) |
Beam: | 5.80 m (19 ft) |
Draught: | 3.68 m (12 ft 1 in) |
Propulsion: |
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Speed: |
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Range: |
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Test depth: | 50 m (160 ft) |
Complement: | 3 officers, 31 men[2] |
Armament: |
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Service record | |
Part of: |
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Commanders: | |
Operations: | 5 patrols |
Victories: |
Construction
She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 2 June 1917. UB-78 was commissioned later that same year under the command of Kptlt. Woldemar Petri. Like all Type UB III submarines, UB-78 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-78 would carry a crew of up to 3 officers and 31 men and had a cruising range of 8,680 nautical miles (16,080 km; 9,990 mi). UB-78 had a displacement of 516 t (508 long tons) while surfaced and 648 t (638 long tons) when submerged. Her engines enabled her to travel at 13.6 knots (25.2 km/h; 15.7 mph) when surfaced and 7.8 knots (14.4 km/h; 9.0 mph) when submerged.[2]
Summary of raiding history
Date | Name | Nationality | Tonnage[Note 2] | Fate[7] |
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21 March 1918 | Strathearn | 152 | Damaged | |
22 March 1918 | Polleon | 1,155 | Sunk | |
25 March 1918 | HMD Border Lads | 86 | Sunk | |
26 March 1918 | British Star | 6,888 | Damaged |
References
Notes
- "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
- Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.
Citations
- Rössler 1979, p. 65.
- Gröner 1991, pp. 25-30.
- Helgason 2018
- Helgason, Guðmundur. "WWI U-boat commanders: Woldemar Petri". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 March 2015.
- Helgason, Guðmundur. "WWI U-boat commanders: Ulrich Pilzecker". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 March 2015.
- Helgason, Guðmundur. "WWI U-boat commanders: Arthur Stoßberg". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 March 2015.
- Helgason, Guðmundur. "Ships hit by UB 78". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 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.CS1 maint: ref=harv (link)
- 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.
- Helgason, Guðmundur (2018). "UB 78". uboat.net. Retrieved 18 April 2018.CS1 maint: ref=harv (link)
- 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.CS1 maint: ref=harv (link)