SM U-4 (Germany)

History
German Empire
Name	U-4
Ordered	13 August 1907
Builder	Kaiserliche Werft Danzig
Cost	1,629,000 Goldmark
Yard number	3
Launched	18 May 1909
Commissioned	1 July 1909
Decommissioned	27 January 1919
Fate	Broken up in 1919
General characteristics
Class and type	German Type U 3 submarine
Displacement	421 t (414 long tons) surfaced; 510 t (500 long tons) submerged;
Length	51.28 m (168 ft 3 in) (o/a); 45.00 m (147 ft 8 in) (pressure hull);
Beam	5.60 m (18 ft 4 in)
Draught	3.05 m (10 ft)
Propulsion	2 shafts; 2 × Körting 8-cylinder two stroke paraffin motors with 600 PS (440 kW; 590 shp); 2 × Siemens-Schuckert electric motors with 1,030 PS (760 kW; 1,020 shp); 550 rpm surfaced; 600 rpm submerged;
Speed	11.8 knots (21.9 km/h; 13.6 mph) surfaced; 9.4 knots (17.4 km/h; 10.8 mph) submerged;
Range	1,800 nmi (3,300 km; 2,100 mi) at 12 knots (22 km/h; 14 mph) surfaced; 50 nmi (93 km; 58 mi) at 4.5 knots (8.3 km/h; 5.2 mph) submerged;
Test depth	30 m (98 ft 5 in)
Boats & landing ; craft carried	1 dingi
Armament	4 × 45 cm (18 in) torpedo tubes (2 bow, 2 stern); 6 torpedoes ; 1 × 5 cm (2.0 in) SK L/40 gun (from 1915);
Service record
Part of:	Training Flotilla; 1 August 1914 - 11 November 1918;
Commanders:	Friedrich Lützow
Operations:	none
Victories:	No ships sunk or damaged

Last updated June 01, 2024

SM U-4 was one of the 329 submarines serving in the Imperial German Navy in World War I. She was partially broken up in 1919 with her hull being sold on.^[3]

Related Research Articles

SM U-1, also known in English as the German Type U 1 submarine, was the first U-boat class of the U-boat series of submarines produced for the German Empire's Imperial German Navy. Only one was built. The U-1 was constructed by Germaniawerft in Kiel and was commissioned on 14 December 1906. When World War I began in 1914, the U-1 was deemed obsolete and was used only for training until 19 February 1919, when it was struck by another vessel while on an exercise.

SM U-2 was a German U-boat built for the Imperial German Navy. Only one of the type, sometimes called German Type U 2 submarine, was built. U-2 was ordered from Kaiserliche Werft of Danzig on 4 March 1906, launched on 18 June 1908, and commissioned into the Imperial German Navy on 18 July 1908. She conducted no war patrols and spent World War I as a training platform.

SM U-5 was a German Type U 5 U-boat built for the Imperial German Navy. She was commissioned 2 July 1910 in Germaniawerft in Kiel. She served in World War I under the command of Kptlt. Johannes Lemmer, with no recorded sinkings of enemy ships on two patrols. She was lost in an accident off the Belgian coast on 18 December 1914, and sank with no survivors - all of her 29 crew members died.

SM U-3 was the third German U-boat created by the German Empire in their history, and the first of two submarines in its class. The boat was built by Kaiserliche Werft Danzig and was launched on 27 March 1909.

SM UB-68 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 20 May 1916. She was commissioned into the German Imperial Navy on 5 October 1917 as SM UB-68. The submarine conducted five patrols and sank five ships during the war. Under the command of Karl Dönitz, on 4 October 1918 UB-68 encountered technical problems and had to surface where she was sunk by gunfire at 33°56′N16°20′E. There was one dead and thirty-three survivors. Other sources name the British warships involved in the sinking of UB-68 as HMS Snapdragon and HMS Cradosin, and claim four crew members died in the event.

SM U-10 was one of the 329 submarines serving in the Imperial German Navy in World War I.

SM U-11 was one of the 329 submarines serving in the Imperial German Navy in World War I.

SM U-7 was a Type U 5 U-boat, one of the 329 that served in the Imperial German Navy in World War I. U-7 took part in the First Battle of the Atlantic.

SM UB-62 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 9 July 1917 as SM UB-62.

SM UB-71 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 23 November 1917 as SM UB-71.

SM UB-75 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 11 September 1917 as SM UB-75.

SM UB-82 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 8 September 1917 as SM UB-82.

SM UB-89 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 25 February 1918 as SM UB-89.

SM UB-92 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 27 April 1918 as SM UB-92.

SM UB-95 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 20 June 1918 as SM UB-95.

SM UB-98 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 8 August 1918 as SM UB-98.

SM UB-102 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 17 October 1918 as SM UB-102.

SM UB-104 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 15 March 1918 as SM UB-104.

SM UB-111 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 5 April 1918 as SM UB-111.

SM UB-126 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 20 April 1918 as SM UB-126.

References

1 2 3 4 Rössler 1985, p. 15.
↑ Gröner 1991, pp. 4–6.
↑ Helgason, Guðmundur. "WWI U-boats: U 4". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 21 January 2010.

Bibliography

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 (1985). Die deutschen U-Boote und ihre Werften: U-Bootbau bis Ende des 1. Weltkriegs, Konstruktionen für das Ausland und die Jahre 1935–1945[The German Submarines and Their Shipyards: Submarine Construction Until the End of the First World War] (in German). Vol. I. Koblenz: Bernard & Graefe. ISBN 3-7637-5213-7.

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[FOOTNOTERössler198515-1] 1 2 3 4 Rössler 1985, p. 15.

[FOOTNOTEGröner19914–6-2] Gröner 1991, pp. 4–6.

[3] Helgason, Guðmundur. "WWI U-boats: U 4". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 21 January 2010.

[1]

[2]

[3]

v t e German naval ship classes of World War I
Dreadnought battleships	Nassau Helgoland Kaiser König Bayern L 20e α ^X
Pre-dreadnought battleships	Brandenburg Kaiser Friedrich III Wittelsbach Braunschweig Deutschland
Battlecruisers	SMS Von der Tann ^S Moltke SMS Seydlitz ^S Derfflinger Mackensen ^X Ersatz Yorck ^X
Armored cruisers	SMS Fürst Bismarck ^S SMS Prinz Heinrich ^S Prinz Adalbert Roon Scharnhorst SMS Blücher ^S
Light cruisers	SMS Hela ^S Gazelle Bremen Königsberg Dresden Nautilus Kolberg Magdeburg Karlsruhe Graudenz Pillau Wiesbaden Königsberg Brummer Cöln FK proposals ^X
Protected cruisers	SMS Kaiserin Augusta ^S Victoria Louise
Large torpedo boats	1898 1906 1911 1913 1914 G101 ^A V105 ^N 1916 1916M 1917 1918 ^X
Small / Coastal torpedo boats	S7 A
Aircraft carriers	"I" ^X
Coastal defense ships	Siegfried Odin
U-boats	U 1 U 2 U 3 U 5 U 9 U 13 U 16 U 17 U 19 U 23 U 27 U 31 U 43 U 51 U 57 U 63 U 66 U 81 U 87 U 93 U 115 ^X U 127 U 131 ^X U 135 U 139 U 142 U 151 UA UB I UB II UB III UC I UC II UC III UD 1 ^X UE I UE II UF ^X UG ^X
S Single ship of class X Cancelled V Conversions A Building for Argentina when seized N Building for the Netherlands when seized See also: List of ships of the Imperial German Navy

History

German Empire
Name	U-4
Ordered	13 August 1907^[1]
Builder	Kaiserliche Werft Danzig ^[1]
Cost	1,629,000 Goldmark
Yard number	3
Launched	18 May 1909^[1]
Commissioned	1 July 1909^[1]
Decommissioned	27 January 1919
Fate	Broken up in 1919
General characteristics ^[2]
Class and type	German Type U 3 submarine
Displacement	421 t (414 long tons) surfaced 510 t (500 long tons) submerged
Length	51.28 m (168 ft 3 in) (o/a) 45.00 m (147 ft 8 in) (pressure hull)
Beam	5.60 m (18 ft 4 in)
Draught	3.05 m (10 ft)
Propulsion	2 shafts 2 × Körting 8-cylinder two stroke paraffin motors with 600 PS (440 kW; 590 shp) 2 × Siemens-Schuckert electric motors with 1,030 PS (760 kW; 1,020 shp) 550 rpm surfaced 600 rpm submerged
Speed	11.8 knots (21.9 km/h; 13.6 mph) surfaced 9.4 knots (17.4 km/h; 10.8 mph) submerged
Range	1,800 nmi (3,300 km; 2,100 mi) at 12 knots (22 km/h; 14 mph) surfaced 50 nmi (93 km; 58 mi) at 4.5 knots (8.3 km/h; 5.2 mph) submerged
Test depth	30 m (98 ft 5 in)
Boats & landing craft carried	1 dingi
Armament	4 × 45 cm (18 in) torpedo tubes (2 bow, 2 stern) 6 torpedoes 1 × 5 cm (2.0 in) SK L/40 gun (from 1915)
Service record
Part of:	Training Flotilla 1 August 1914 - 11 November 1918
Commanders:	Friedrich Lützow
Operations:	none
Victories:	No ships sunk or damaged

German Type U 3 submarine
U-3 U-4
Preceded by: Type U 2 Followed by: Type U 5 List of U-boats of Germany