SM UB-77
SM UB-77 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 2 October 1917 as SM UB-77.[Note 1]
 UB-148 at sea, a U-boat similar to UB-77. | |
| History | |
|---|---|
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| Name: | UB-77 |
| Ordered: | 23 September 1916[1] |
| Builder: | Blohm & Voss, Hamburg |
| Cost: | 3,338,000 German Papiermark |
| Yard number: | 306 |
| Launched: | 5 May 1917[2] |
| Commissioned: | 2 October 1917[2] |
| Fate: | surrendered 16 January 1919.[2] |
| General characteristics [2] | |
| 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: | 7 patrols |
| Victories: | |
UB-77 was surrendered on 16 January 1919 in accordance with the requirements of the Armistice with Germany and broken up in Swansea in 1921.[2]
Construction
UB-77 was ordered by the GIN on 23 September 1916.
She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 5 May 1917. UB-77 was commissioned later that same year under the command of Kptlt. Wilhelm Meyer. Like all Type UB III submarines, UB-77 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-77 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,680 nautical miles (16,080 km; 9,990 mi). UB-77 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[Note 2] | Fate[5] |
|---|---|---|---|---|
| 5 February 1918 | Tuscania |  United Kingdom |
14,348 | Sunk |
| 31 March 1918 | Celtic |  United Kingdom |
20,904 | Damaged |
| 28 August 1918 | Lompoc | United Kingdom |
7,270 | 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.
- Tonnages are in gross register tons
Citations
- Rössler 1979, p. 65.
- Gröner 1991, pp. 25-30.
- Helgason, Guðmundur. "WWI U-boat commanders: Wilhelm Meyer". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 February 2015.
- Helgason, Guðmundur. "WWI U-boat commanders: Franz Maurer". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 February 2015.
- Helgason, Guðmundur. "Ships hit by UB 77". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 February 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.
- 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)