SM UB-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′N2°32′W / 50.533°N 2.533°W .
General characteristics
Class and type	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);

Last updated January 17, 2025

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.^{[Note 1]}

Construction

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^{[Note 2]}	Fate^[3]
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

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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. 61.
1 2 3 4 5 6 Gröner 1991, pp. 25–30.
↑ Helgason, Guðmundur. "Ships hit by UB 74". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 December 2014.

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.

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[3] "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-4] Tonnages are in gross register tons

[FOOTNOTERössler197961-1] Rössler 1979, p. 61.

[FOOTNOTEGröner199125–30-2] 1 2 3 4 5 6 Gröner 1991, pp. 25–30.

[5] Helgason, Guðmundur. "Ships hit by UB 74". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 December 2014.

[1]

[2]

[Note 1]

[Note 2]

[3]

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 May 1918
Shipwrecks	2 May: UB-31, Unity 5 May: Kyarra , UB-119 8 May: U-32 9 May: UC-78 10 May: UB-16, HMS Vindictive 11 May: Sant Anna, U-154, Verona 12 May: U-103, UB-72 13 May: UB-114, Zaanland 14 May: HMS Phoenix 17 May: U-35 18 May: Catapulte, Warrimoo, HMS Chesterfield 21 May: Rosalind 22 May: USS Wakiva II 23 May: Innisfallen, HMS Moldavia, UB-52 26 May: UB-74 31 May: HMS Fairy, USS President Lincoln, UC-75 Unknown date: UB-70
Other incidents	1 May: Prince Rupert 13 May: USS Hisko, USS Mexican, Nidd 22 May: USS Wabash 29 May: RMS Magdalena
1917 1918 1919 April 1918 June 1918

History
UB-148 at sea, a U-boat similar to UB-74.
German Empire
Name	UB-74
Ordered	23 September 1916^[1]
Builder	AG Vulcan, Hamburg
Cost	3,337,000 German Papiermark
Yard number	98
Launched	12 September 1917^[2]
Commissioned	24 October 1917^[2]
Fate	Sunk 26 May 1918 by depth charges at 50°32′N2°32′W / 50.533°N 2.533°W / 50.533; -2.533 .^[2]
General characteristics ^[2]
Class and type	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^[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:	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)