SM UB-83

	UB-148 at sea, a U-boat similar to UB-83.
History
German Empire
Name	UB-83
Ordered	23 September 1916
Builder	AG Weser, Bremen
Cost	3,341,000 German Papiermark
Yard number	283
Laid down	15 January 1917
Launched	15 September 1917
Commissioned	15 October 1917
Fate	Sunk 10 September 1918 by British warships at 58°28′N 1°50′W / 58.467°N 1.833°W
General characteristics
Class and type	Type UB III submarine
Displacement	516 t (508 long tons) surfaced; 647 t (637 long tons) submerged;
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	2 × propeller shaft; 2 × Daimler four-stroke 6-cylinder diesel engines, 1,050 bhp (780 kW); 2 × BBC electric motors, 780 shp (580 kW);
Speed	13.4 knots (24.8 km/h; 15.4 mph) surfaced; 7.5 knots (13.9 km/h; 8.6 mph) submerged;
Range	8,180 nmi (15,150 km; 9,410 mi) at 6 knots (11 km/h; 6.9 mph) surfaced; 50 nmi (93 km; 58 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	50 m (160 ft)
Complement	3 officers, 31 men
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:	V Flotilla; 24 December 1917 – 10 September 1918;
Commanders:	Oblt.z.S. Günther Krause; 15 October 1917 – 9 June 1918; Oblt.z.S. Hans Buntebardt; 10 June – 10 September 1918;
Operations:	6 patrols
Victories:	1 merchant ship sunk ; (634 GRT); 1 merchant ship damaged ; (6,970 GRT);

SM UB-83 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 15 October 1917 as SM UB-83.^{[Note 1]}

UB-83 was sunk on 10 September 1918 by HMS Ophelia off Orkney at 58°28′N 1°50′W / 58.467°N 1.833°W / 58.467; -1.833 (Ophelia), all 35 of the crew members died in the event.^[3]

Construction

She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 15 September 1917. UB-83 was commissioned later that same year under the command of Oblt.z.S. Günther Krause. Like all Type UB III submarines, UB-83 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-83 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-83 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.

Service history

Summary of raiding history

Date	Name	Nationality	Tonnage^{[Note 2]}	Fate^[6]
23 March 1918	Aulton	United Kingdom	634	Sunk
23 March 1918	Meline	United Kingdom	6,970	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. 55.
^ Helgason, Guðmundur. "WWI U-boats: UB 83". 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: Günther Krause". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.
^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Buntebardt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.
^ Helgason, Guðmundur. "Ships hit by UB 83". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 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.
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.

[6] "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.

[tonnage-7] Tonnages are in gross register tons

[FOOTNOTERössler197955-1] Rössler 1979, p. 55.

[UB-83-2] Helgason, Guðmundur. "WWI U-boats: UB 83". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 13 February 2009.

[FOOTNOTEGröner199125–30-3] ^ ^a ^b ^c ^d ^e ^f Gröner 1991, pp. 25–30.

[4] Helgason, Guðmundur. "WWI U-boat commanders: Günther Krause". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.

[5] Helgason, Guðmundur. "WWI U-boat commanders: Hans Buntebardt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.

[8] Helgason, Guðmundur. "Ships hit by UB 83". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.

[1]

[2]

[3]

[4]

[5]

[Note 1]

[Note 2]

[6]

v t e 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)
List of U-boats of Germany

v t e Shipwrecks and maritime incidents in September 1918
Shipwrecks	1 Sep: Mesaba, City of Glasgow 4 Sep: Bogstad 5 Sep: SM UC-91 9 Sep: SM U-92 10 Sep: SM UB-83 15 Sep: HMS Sarnia 16 Sep: USS Buena Ventura, HMS Glatton 20 Sep: Circé 25 Sep: SM U-156 27 Sep: USCGC Tampa 29 Sep: SM UB-115 30 Sep: USS Ticonderoga, SM U-102, SM UB-127 Unknown date: SM UB-104, SM UB-113
Other incidents	5 Sep: USS Mount Vernon 6 Sep: D.R. Hanna, USS Hisko 8 Sep: HMS Amphitrite 12 Sep: USFS Auklet, SS Princess Sophia 27 Sep: USS Relief, USS Williams 29 Sep: USS Minnesota
1917 1918 1919 August 1918 October 1918

History
UB-148 at sea, a U-boat similar to UB-83.
German Empire
Name	UB-83
Ordered	23 September 1916^[1]
Builder	AG Weser, Bremen
Cost	3,341,000 German Papiermark
Yard number	283
Laid down	15 January 1917^[2]
Launched	15 September 1917^[3]
Commissioned	15 October 1917^[3]
Fate	Sunk 10 September 1918 by British warships at 58°28′N 1°50′W / 58.467°N 1.833°W / 58.467; -1.833^[3]
General characteristics ^[3]
Class and type	Type UB III submarine
Displacement	516 t (508 long tons) surfaced 647 t (637 long tons) submerged
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	2 × propeller shaft 2 × Daimler four-stroke 6-cylinder diesel engines, 1,050 bhp (780 kW) 2 × BBC electric motors, 780 shp (580 kW)
Speed	13.4 knots (24.8 km/h; 15.4 mph) surfaced 7.5 knots (13.9 km/h; 8.6 mph) submerged
Range	8,180 nmi (15,150 km; 9,410 mi) at 6 knots (11 km/h; 6.9 mph) surfaced 50 nmi (93 km; 58 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	50 m (160 ft)
Complement	3 officers, 31 men^[3]
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:	V Flotilla 24 December 1917 – 10 September 1918
Commanders:	Oblt.z.S. Günther Krause^[4] 15 October 1917 – 9 June 1918 Oblt.z.S. Hans Buntebardt^[5] 10 June – 10 September 1918
Operations:	6 patrols
Victories:	1 merchant ship sunk (634 GRT) 1 merchant ship damaged (6,970 GRT)