SM UB-74

For other ships with the same name, see German submarine U-74.

UB-148 at sea, a U-boat similar to UB-74.
History
German Empire
Name	UB-74
Ordered	23 September 1916
Builder	AG Vulcan, Hamburg
Cost	3,337,000 German Papiermark
Yard number	98
Launched	12 September 1917
Commissioned	24 October 1917
Fate	sunk 26 May 1918 by depth charges at 50°32′N 2°32′W.
General characteristics
Class and type	German Type UB III submarine
Displacement	508 t (500 long tons) surfaced 639 t (629 long tons) submerged
Length	55.52 m (182 ft 2 in) (o/a)
Beam	5.76 m (18 ft 11 in)
Draught	3.70 m (12 ft 2 in)
Propulsion	2 × propeller shaft 2 × Körting four-stroke 6-cylinder diesel engines, 1,050 bhp (780 kW) 2 × Siemens-Schuckert 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	8,420 nmi (15,590 km; 9,690 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
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 6–25 January 1918 Flandern I Flotilla 25 January – 26 May 1918
Commanders:	Kptlt. Karl Neureuther 24 October 1917 – 30 January 1918 Oblt.z.S. Ernst Steindorff 31 January – 26 May 1918
Operations:	4 patrols
Victories:	7 merchant ships sunk (13,294 GRT) 3 merchant ships damaged (12,817 GRT)

SM UB-74 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 24 October 1917 as SM UB-74.

UB-74 was serving in the Flanders Flotillas. On 26 May 1918 she was sunk by HMS Lorna with depth charges in the English channel.

Construction

Main article: German Type UB III submarine

She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 12 September 1917. UB-74 was commissioned later that same year under the command of Kptlt. Karl Neureuther. Like all Type UB III submarines, UB-74 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-74 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,420 nautical miles (15,590 km; 9,690 mi). UB-74 had a displacement of 508 t (500 long tons) while surfaced and 639 t (629 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.

Summary of raiding history

Date	Name	Nationality	Tonnage	Fate
26 February 1918	Greavesash	United Kingdom	1,263	Sunk
26 February 1918	Romny	United Kingdom	1,024	Sunk
7 April 1918	Rye	United Kingdom	986	Sunk
10 April 1918	Paul Paix	United Kingdom	4,196	Damaged
12 April 1918	Luisa	Spain	3,603	Sunk
14 April 1918	Maroc	France	2,808	Sunk
15 April 1918	Tanfield	United Kingdom	4,538	Damaged
18 May 1918	John G. McCullough	United States	1,985	Sunk
23 May 1918	Skaraas	United Kingdom	1,625	Sunk
25 May 1918	Anne	United Kingdom	4,083	Damaged

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. {{cite book}}: Invalid |ref=harv (help)
• Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4. {{cite book}}: |work= ignored (help); Cite has empty unknown parameter: |last-author-amp= (help)
• Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 – 1945 (in German). Vol. I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7. {{cite book}}: |work= ignored (help); Invalid |ref=harv (help)