SM UB-48

For other ships with the same name, see German submarine U-48.

History
UB-148 at sea, a U-boat similar to UB-48.
German Empire
Name:	UB-48
Ordered:	20 May 1916^[1]
Builder:	Blohm & Voss, Hamburg
Cost:	3,276,000 German Papiermark
Yard number:	293
Launched:	6 January 1917^[2]
Commissioned:	11 June 1917^[2]
Fate:	Scuttled at Pola on 28 October 1918 following the surrender of Austria-Hungary.^[2]
General characteristics ^[2]
Class and type:	German Type UB III submarine
Displacement:	516 t (508 long tons) surfaced 651 t (641 long tons) submerged
Length:	55.30 m (181 ft 5 in) (o/a)
Beam:	5.80 m (19.0 ft)
Draught:	3.68 m (12 ft 1 in)
Propulsion:	2 × propeller shaft 2 × MAN four-stroke 6-cylinder diesel engine, 1,085 bhp (809 kW) 2 × Siemens-Schuckert electric motor, 780 shp (580 kW)
Speed:	13.6 knots (25.2 km/h; 15.7 mph) surfaced 8 knots (15 km/h; 9.2 mph) submerged
Range:	9,040 nmi (16,740 km; 10,400 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 depth:	50 m (160 ft)
Complement:	3 officers, 31 men^[2]
Armament:	5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) 10 torpedoes 1 × 8.8 cm (3.46 in) deck gun
Service record
Part of:	Pola/Mittelmeer II Flotilla 2 September 1917 – 28 October 1918
Commanders:	Oblt.z.S. Wolfgang Steinbauer^[3]
Operations:	9 patrols
Victories:	36 ships merchant sunk (110,095 GRT) 8 merchant ships damaged (25,113 GRT) 1 warship damaged (18,400 tons)

SM UB-48 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. It was commissioned into the German Imperial Navy on 11 June 1917 as SM UB-48.^{[Note 1]}

The submarine conducted nine patrols and sank 32 ships during the war for a total loss of 104,488 gross register tons (GRT) and one destroyer.^[3] It operated as part of the Pola Flotilla and later the II Mediterranean U-boat Flotilla based in Cattaro.^[3] UB-48 was one of the most successful u-boats serving in the Mediterranean. The boat was assigned the number U-79 in the Austro-Hungarian Navy.^[2] It was scuttled in Pola after the surrender of Austria-Hungary on 28 October 1918.^[2]

Construction

Main article: German Type UB III submarine

UB-48 was ordered by the GIN on 20 May 1916 and built by Blohm & Voss of Hamburg. Following less than a year of construction, it was launched at Hamburg on 6 January 1917. UB-48 was commissioned later that same year under the command of Wolfgang Steinbauer.^[3] Like all Type UB III submarines, UB-48 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-48 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9,090 nautical miles (16,830 km; 10,460 mi). UB-48 had a displacement of 516 t (508 long tons) while surfaced and 651 t (641 long tons) when submerged. Her engines enabled her to travel at 13.6 knots (25.2 km/h; 15.7 mph) when surfaced and 8 knots (15 km/h; 9.2 mph) when submerged.

Summary of raiding history

Ships sunk or damaged by SM UB-48^[4]
Date	Name	Nationality	Tonnage^{[Note 2]}	Fate
000000001917-08-12-000012 August 1917	Roanoke	United Kingdom	4,803	Sunk
000000001917-08-14-000014 August 1917	HMS Prize	Royal Navy	199	Sunk
000000001917-08-18-000018 August 1917	Kongsli	Norway	5,826	Sunk
000000001917-08-20-000020 August 1917	Serra Do Marco	Portugal	50	Sunk
000000001917-08-20-000020 August 1917	Serra Do Pilar	Portugal	50	Sunk
000000001917-08-23-000023 August 1917	Winlaton	United Kingdom	3,270	Sunk
000000001917-08-27-000027 August 1917	Hathor	United Kingdom	3,823	Sunk
000000001917-10-02-00002 October 1917	Imera	Italy	1,172	Sunk
000000001917-10-04-00004 October 1917	Citta Di Bari	Italy	1,489	Sunk
000000001917-10-09-00009 October 1917	Niki	Greece	511	Sunk
000000001917-10-14-000014 October 1917	Valparaiso	Italy	4,930	Sunk
000000001917-10-19-000019 October 1917	Pera	United Kingdom	7,635	Sunk
000000001917-10-20-000020 October 1917	Collegian	United Kingdom	7,520	Sunk
000000001917-11-27-000027 November 1917	Glenbridge	United Kingdom	3,845	Damaged
000000001917-12-04-00004 December 1917	Dowlais	United Kingdom	3,016	Sunk
000000001917-12-04-00004 December 1917	Gerasimos	Greece	3,845	Sunk
000000001917-12-08-00008 December 1917	Consols	United Kingdom	3,756	Sunk
000000001918-01-27-000027 January 1918	Volonta Di Dio	Italy	43	Sunk
000000001918-01-30-000030 January 1918	Harlaw	Italy	821	Sunk
000000001918-02-02-00002 February 1918	Celia	United Kingdom	5,004	Sunk
000000001918-02-02-00002 February 1918	Edilio	Italy	4,719	Sunk
000000001918-02-02-00002 February 1918	Newminster Abbey	United Kingdom	3,114	Sunk
000000001918-02-03-00003 February 1918	Aboukir	United Kingdom	3,660	Sunk
000000001918-02-07-00007 February 1918	Sturton	United Kingdom	4,406	Sunk
000000001918-04-26-000026 April 1918	Upada	United Kingdom	5,257	Damaged
000000001918-04-27-000027 April 1918	Romany	United Kingdom	3,983	Sunk
000000001918-04-29-000029 April 1918	Kingstonian	United Kingdom	6,564	Sunk
000000001918-04-29-000029 April 1918	Dalkeith	United Kingdom	748	Sunk
000000001918-04-29-000029 April 1918	Monte Bianco	France	988	Damaged
000000001918-04-29-000029 April 1918	Moose	United Kingdom	208	Damaged
000000001918-05-02-00002 May 1918	Franklyn	United Kingdom	4,919	Sunk
000000001918-05-02-00002 May 1918	Tyler	United States	3,928	Sunk
000000001918-05-05-00005 May 1918	Clan Ross	United Kingdom	5,971	Damaged
000000001918-06-02-00002 June 1918	San Antonio	Italy	389	Sunk
000000001918-06-06-00006 June 1918	Christophero Colombo	Italy	264	Sunk
000000001918-06-10-000010 June 1918	Nivernais	France	2,555	Sunk
000000001918-06-13-000013 June 1918	Penhallow	United Kingdom	4,318	Sunk
000000001918-08-16-000016 August 1918	Balkan	France	1,709	Sunk
000000001918-08-18-000018 August 1918	Nordboen	Denmark	2,417	Sunk
000000001918-09-01-00001 September 1918	Baron Minto	United Kingdom	4,537	Damaged
000000001918-09-01-00001 September 1918	Monviso	Italy	4,020	Damaged
000000001918-10-18-000018 October 1918	Voltaire	French Navy	18,400	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.
1 2 3 4 5 6 7 Gröner 1991, pp. 25-30.
1 2 3 4 Bendert 2000, p. 123.
↑ Helgason, Guðmundur. "Ships hit by UB 48". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2010.

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. 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.

German Type UB III submarines

SM UB-48 SM UB-49 SM UB-50 SM UB-51 SM UB-52 SM UB-53 SM UB-54 SM UB-55 SM UB-56 SM UB-57 SM UB-58 SM UB-59 SM UB-60 SM UB-61 SM UB-62 SM UB-63 SM UB-64 SM UB-65 SM UB-66 SM UB-67 SM UB-68 SM UB-69 SM UB-70 SM UB-71 SM UB-72 SM UB-73 SM UB-74 SM UB-75 SM UB-76 SM UB-77 SM UB-78 SM UB-79 SM UB-80 SM UB-81 SM UB-82 SM UB-83 SM UB-84 SM UB-85 SM UB-86 SM UB-87 SM UB-88 SM UB-89 SM UB-90 SM UB-91 SM UB-92 SM UB-93 SM UB-94 SM UB-95 SM UB-96 SM UB-97 SM UB-98 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

Preceded by: Type UB II Followed by: Type VII (World War II)

Shipwrecks and maritime incidents in October 1918

Shipwrecks	2 Oct: Keltier 3 Oct: Burutu, SMS G41 4 Oct: HMS L10, SM UB-68 5 Oct: USS Mary Alice, SM UB-10, SM UB-40, SM UB-59, SM UC-4 6 Oct: HMS C12, HMS Otranto 7 Oct: USS West Gate 10 Oct: Leinster 15 Oct: HMS J6 16 Oct: Dumaru, SM UB-90 19 Oct: SM UB-123 20 Oct: HMS M21 21 Oct: USS Cero, SM UB-89 25 Oct: Princess Sophia 27 Oct: SM U-78 28 Oct: USS Tarantula, SM U-47, SM U-65, SM UB-48, SM UB-116, SM UC-25, SM UC-53, SM UC-54 30 Oct: SM U-73, SM UC-34 31 Oct: SM UB-129 Unknown date: SMS Brugge, HMS G7, SM U-34

Other incidents	3 Oct: USS George G. Henry 5 Oct: USS O-13 6 Oct: HMS Kashmir 7 Oct: USS American 12 Oct: USAT Amphion 15 Oct: HMS Cymric 18 Oct: Voltaire 20 Oct: USS Berwyn 21 Oct: SMS Frankfurt

1917 1918 1919 September 1918 November 1918

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