SM UB-84 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 31 October 1917 as SM UB-84.[Note 1] UB-84 was lost in a collision on 7 December 1917 in the Baltic Sea at 54°35′N 10°11′E / 54.583°N 10.183°E.
 UB-148 at sea, a U-boat similar to UB-84
| |
| History | |
|---|---|
 German Empire | |
| Name | UB-84 |
| Ordered | 23 September 1916[1] |
| Builder | AG Weser, Bremen |
| Cost | 3,341,000 German Papiermark |
| Yard number | 284 |
| Laid down | 21 January 1917[2] |
| Launched | 3 October 1917[3] |
| Commissioned | 31 October 1917[3] |
| Fate | Lost in collision, 7 December 1917 at 54°35′N 10°11′E / 54.583°N 10.183°E, raised, training boat, surrendered 26 November 1918, broken up[3] |
| General characteristics [3] | |
| Class and type | Type UB III submarine |
| Displacement | |
| Length | 55.85 m (183 ft 3 in) (o/a) |
| Beam | 5.80 m (19 ft) |
| Draught | 3.72 m (12 ft 2 in) |
| Propulsion |
|
| Speed |
|
| Range |
|
| Test depth | 50 m (160 ft) |
| Complement | 3 officers, 31 men[3] |
| Armament |
|
| Service record | |
| Commanders: |
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| Operations: | No patrols |
| Victories: | None |
She was later raised and used as a training boat. On 26 November 1918 she was surrendered to the French in accordance with the requirements of the Armistice with Germany and broken up in Brest in 1921.[3]
Construction
editShe was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 3 October 1917. UB-84 was commissioned later that same year under the command of Kptlt. Max Bräutigam. Like all Type UB III submarines, UB-84 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-84 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,180 nautical miles (15,150 km; 9,410 mi). UB-84 had a displacement of 516 t (508 long tons) while surfaced and 647 t (637 long tons) when submerged. Her engines enabled her to travel at 13.4 knots (24.8 km/h; 15.4 mph) when surfaced and 7.5 knots (13.9 km/h; 8.6 mph) when submerged.
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Stele in Nordfriedhof, Kiel, Germany, to commemorate the casualties of UB-84 who was lost in a collision on 7 December 1917
References
editNotes
edit- ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
Citations
edit- ^ Rössler 1979, p. 55.
- ^ Helgason, Guðmundur. "WWI U-boats: UB 84". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 13 February 2009.
- ^ a b c d e f Gröner 1991, pp. 25–30.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Max Bräutigam". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.
Bibliography
edit- 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.