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.
Mined off Dover on 19 April 1918 all 35 crew lost.
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.
Summary of raiding history
| Date | Name | Nationality | Tonnage | Fate |
|---|---|---|---|---|
| 21 March 1918 | Strathearn |  United Kingdom
|
152 | Damaged |
| 22 March 1918 | Polleon | United Kingdom
|
1,155 | Sunk |
| 25 March 1918 | HMD Border Lads |  Royal Navy
|
86 | Sunk |
| 26 March 1918 | British Star | United Kingdom
|
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
- ^ Gröner 1991, pp. 25–30.
- ^ Rössler 1979, p. 65.
- ^ 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.
- 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.
- Helgason, Guðmundur (2018). "UB 78". uboat.net. Retrieved 18 April 2018.
- 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.
External links
- Scott, Graham (2015) ' UB-78 off Folkestone, Kent: Archaeological Report', Wessex Archaeology.
- Historic England project to research First World War submarine wrecks. Archived 24 June 2016 at the Wayback Machine
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