SM UC-4

History
German Empire
Name	UC-4
Ordered	November 1914
Builder	AG Vulcan, Hamburg
Yard number	48
Launched	6 June 1915
Commissioned	10 June 1915
Fate	Scuttled off Flanders, 5 October 1918
General characteristics
Class and type	Type UC I submarine
Displacement	168 t (165 long tons), surfaced; 183 t (180 long tons), submerged;
Length	33.99 m (111 ft 6 in) o/a; 29.62 m (97 ft 2 in) pressure hull;
Beam	3.15 m (10 ft 4 in)
Draft	3.04 m (10 ft)
Propulsion	1 × propeller shaft; 1 × 6-cylinder, 4-stroke diesel engine, 90 PS (66 kW; 89 bhp); 1 × electric motor, 175 PS (129 kW; 173 shp);
Speed	6.20 knots (11.48 km/h; 7.13 mph), surfaced; 5.22 knots (9.67 km/h; 6.01 mph), submerged;
Range	780 nmi (1,440 km; 900 mi) at 5 knots (9.3 km/h; 5.8 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	14
Armament	6 × 100 cm (39 in) mine tubes; 12 × UC 120 mines; 1 × 8 mm (0.31 in) machine gun;
Service record
Part of:	Baltic Flotilla; 11 July 1915 – 4 February 1916; Flandern Flotilla; 4 February – 19 March 1916; Baltic Flotilla; 19 March – 30 September 1916; Flandern / Flandern I Flotilla; 30 September 1916 – 2 October 1918;
Commanders:	Oblt.z.S. Karl Vesper; 10 June – 28 December 1915; Oblt.z.S. Friedrich Moecke; 29 December 1915 – 19 March 1916; Oblt.z.S. Max Hamm; 20 March – 15 August 1916; Oblt.z.S. Ulrich Pilzecker; 16 August – 14 September 1916; Oblt.z.S. Gustav Buch; 15 September – 20 October 1916; Oblt.z.S. Hans Howaldt; 21 October – 26 November 1916; Oblt.z.S. Georg Reimarus; 27 November 1916 – 11 May 1917; Oblt.z.S. Oskar Steckelberg; 12 – 20 May 1917; Oblt.z.S. Georg Reimarus; 21 – 29 May 1917; Oblt.z.S. Erich Hecht; 30 May – 12 September 1917; Oblt.z.S. Walter Schmitz; 13 September 1917 – 19 January 1918; Oblt.z.S. Kurt Loch; 20 January – 26 February 1918; Oblt.z.S. Ernst Berlin; 27 February – 21 April 1918; Oblt.z.S. Eberhard Schmidt; 22 April – 2 October 1918;
Operations:	73 patrols
Victories:	21 merchant ships sunk ; (33,518 GRT); 1 warship sunk ; (6,136 tons); 14 auxiliary warships sunk ; (5,134 GRT); 2 merchant ships damaged ; (9,441 GRT);

SM UC-4 was a German Type UC I minelayer submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat had been ordered by November 1914 and was launched on 6 June 1915. She was commissioned into the German Imperial Navy on 10 June 1915 as SM UC-4.^{[Note 1]} Mines laid by UC-4 in her 73 patrols were credited with sinking 36 ships. UC-4 was scuttled off the coast of Flanders during the German evacuation on 5 October 1918.^[1]

^ ^a ^b ^c ^d ^e ^f Helgason, Guðmundur. "WWI U-boats: UC 4". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 20 February 2009.
^ Tarrant, p. 173.
^ Gröner 1991, pp. 30–31.
^ Helgason, Guðmundur. "WWI U-boat commanders: Karl Vesper (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Friedrich Moecke". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Max Hamm". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Ulrich Pilzecker". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Gustav Buch". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Howaldt (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Georg Reimarus". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Oskar Steckelberg". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Erich Hecht". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Walter Schmitz". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Kurt Loch". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Ernst Berlin". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Eberhard Schmidt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

Cite error: There are <ref group=Note> tags on this page, but the references will not show without a {{reflist|group=Note}} template (see the help page).

[UC-4-1] ^ ^a ^b ^c ^d ^e ^f Helgason, Guðmundur. "WWI U-boats: UC 4". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 20 February 2009.

[Tarrant-173-2] Tarrant, p. 173.

[FOOTNOTEGröner199130–31-3] Gröner 1991, pp. 30–31.

[4] Helgason, Guðmundur. "WWI U-boat commanders: Karl Vesper (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[5] Helgason, Guðmundur. "WWI U-boat commanders: Friedrich Moecke". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[6] Helgason, Guðmundur. "WWI U-boat commanders: Max Hamm". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[7] Helgason, Guðmundur. "WWI U-boat commanders: Ulrich Pilzecker". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[8] Helgason, Guðmundur. "WWI U-boat commanders: Gustav Buch". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[9] Helgason, Guðmundur. "WWI U-boat commanders: Hans Howaldt (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[10] Helgason, Guðmundur. "WWI U-boat commanders: Georg Reimarus". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[11] Helgason, Guðmundur. "WWI U-boat commanders: Oskar Steckelberg". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[12] Helgason, Guðmundur. "WWI U-boat commanders: Erich Hecht". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[13] Helgason, Guðmundur. "WWI U-boat commanders: Walter Schmitz". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[14] Helgason, Guðmundur. "WWI U-boat commanders: Kurt Loch". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[15] Helgason, Guðmundur. "WWI U-boat commanders: Ernst Berlin". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

[16] Helgason, Guðmundur. "WWI U-boat commanders: Eberhard Schmidt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 31 December 2014.

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[Note 1]

History

German Empire
Name	UC-4
Ordered	November 1914^[1]
Builder	AG Vulcan, Hamburg^[2]
Yard number	48^[1]
Launched	6 June 1915^[1]
Commissioned	10 June 1915^[1]
Fate	Scuttled off Flanders, 5 October 1918^[1]
General characteristics ^[3]
Class and type	Type UC I submarine
Displacement	168 t (165 long tons), surfaced 183 t (180 long tons), submerged
Length	33.99 m (111 ft 6 in) o/a 29.62 m (97 ft 2 in) pressure hull
Beam	3.15 m (10 ft 4 in)
Draft	3.04 m (10 ft)
Propulsion	1 × propeller shaft 1 × 6-cylinder, 4-stroke diesel engine, 90 PS (66 kW; 89 bhp) 1 × electric motor, 175 PS (129 kW; 173 shp)
Speed	6.20 knots (11.48 km/h; 7.13 mph), surfaced 5.22 knots (9.67 km/h; 6.01 mph), submerged
Range	780 nmi (1,440 km; 900 mi) at 5 knots (9.3 km/h; 5.8 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	14
Armament	6 × 100 cm (39 in) mine tubes 12 × UC 120 mines 1 × 8 mm (0.31 in) machine gun
Service record
Part of:	Baltic Flotilla 11 July 1915 – 4 February 1916 Flandern Flotilla 4 February – 19 March 1916 Baltic Flotilla 19 March – 30 September 1916 Flandern / Flandern I Flotilla 30 September 1916 – 2 October 1918
Commanders:	Oblt.z.S. Karl Vesper^[4] 10 June – 28 December 1915 Oblt.z.S. Friedrich Moecke^[5] 29 December 1915 – 19 March 1916 Oblt.z.S. Max Hamm^[6] 20 March – 15 August 1916 Oblt.z.S. Ulrich Pilzecker^[7] 16 August – 14 September 1916 Oblt.z.S. Gustav Buch^[8] 15 September – 20 October 1916 Oblt.z.S. Hans Howaldt^[9] 21 October – 26 November 1916 Oblt.z.S. Georg Reimarus^[10] 27 November 1916 – 11 May 1917 Oblt.z.S. Oskar Steckelberg^[11] 12 – 20 May 1917 Oblt.z.S. Georg Reimarus 21 – 29 May 1917 Oblt.z.S. Erich Hecht^[12] 30 May – 12 September 1917 Oblt.z.S. Walter Schmitz^[13] 13 September 1917 – 19 January 1918 Oblt.z.S. Kurt Loch^[14] 20 January – 26 February 1918 Oblt.z.S. Ernst Berlin^[15] 27 February – 21 April 1918 Oblt.z.S. Eberhard Schmidt^[16] 22 April – 2 October 1918
Operations:	73 patrols
Victories:	21 merchant ships sunk (33,518 GRT) 1 warship sunk (6,136 tons) 14 auxiliary warships sunk (5,134 GRT) 2 merchant ships damaged (9,441 GRT)