SM U-28 (Germany)

	SM U-28 seen from Batavier V, a ship she captured as a prize in March 1915.
History
German Empire
Name	U-28
Ordered	19 February 1912
Builder	Kaiserliche Werft, Danzig
Yard number	18
Launched	30 August 1913
Commissioned	26 June 1914
Fate	Sunk 2 September 1917. 39 dead.
General characteristics
Class and type	German Type U 27 submarine
Displacement	675 t (664 long tons) surfaced; 878 t (864 long tons) submerged;
Length	64.70 m (212 ft 3 in) (o/a)
Beam	6.32 m (20 ft 9 in)
Draught	3.48 m (11 ft 5 in)
Speed	16.7 knots (30.9 km/h; 19.2 mph) surfaced; 9.8 knots (18.1 km/h; 11.3 mph) submerged;
Range	8,420 nmi (15,590 km; 9,690 mi) at 8 knots (15 km/h; 9.2 mph) surfaced; 85 nmi (157 km; 98 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged;
Test depth	50 m (164 ft)
Complement	4 officers, 31 enlisted
Armament	4 × 50 cm (19.7 in) torpedo tubes; 1 × 8.8 cm (3.5 in) SK L/30 deck gun;
Service record
Part of:	IV Flotilla; 1 August 1914 - Unknown end; Training Flotilla; Unknown start – 10 May 1917; IV Flotilla; 10 May – 2 September 1917;
Commanders:	Kptlt. Freiherr Georg-Günther von Forstner; 1 August 1914 – 14 June 1916; Kptlt. Otto Rohrbeck; 15 June – 4 August 1916; Kptlt. Freiherr von Loë-Degenhart; 5 August 1916 – 14 January 1917; Kptlt. Georg Schmidt; 15 January – 2 September 1917;
Operations:	5 patrols
Victories:	39 merchant ships sunk ; (89,632 GRT); 1 auxiliary warship sunk ; (494 GRT); 3 merchant ships damaged ; (14,976 GRT); 2 merchant ships taken as prize ; (3,226 GRT);

SM U-28^[a] was a Type U 27 U-boat that served in the First World War. It conducted 5 patrols, sinking 40 ships totalling 90,126 GRT.

^ Gröner 1991, pp. 6–7.
^ Helgason, Guðmundur. "WWI U-boat commanders: Freiherr Georg-Günther von Forstner (Friedrich-August Cross (Oldenburg))". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Otto Rohrbeck". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Freiherr von Loë-Degenhart". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.
^ Helgason, Guðmundur. "WWI U-boat commanders: Georg Schmidt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.
^ Helgason, Guðmundur. "WWI U-boats: U 28". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.

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

[FOOTNOTEGröner19916–7-1] Gröner 1991, pp. 6–7.

[Forstner-2] Helgason, Guðmundur. "WWI U-boat commanders: Freiherr Georg-Günther von Forstner (Friedrich-August Cross (Oldenburg))". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

[3] Helgason, Guðmundur. "WWI U-boat commanders: Otto Rohrbeck". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

[4] Helgason, Guðmundur. "WWI U-boat commanders: Freiherr von Loë-Degenhart". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

[5] Helgason, Guðmundur. "WWI U-boat commanders: Georg Schmidt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

[6] Helgason, Guðmundur. "WWI U-boats: U 28". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.

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History
SM U-28 seen from Batavier V, a ship she captured as a prize in March 1915.
German Empire
Name	U-28
Ordered	19 February 1912
Builder	Kaiserliche Werft, Danzig
Yard number	18
Launched	30 August 1913
Commissioned	26 June 1914
Fate	Sunk 2 September 1917. 39 dead.
General characteristics ^[1]
Class and type	German Type U 27 submarine
Displacement	675 t (664 long tons) surfaced 878 t (864 long tons) submerged
Length	64.70 m (212 ft 3 in) (o/a)
Beam	6.32 m (20 ft 9 in)
Draught	3.48 m (11 ft 5 in)
Speed	16.7 knots (30.9 km/h; 19.2 mph) surfaced 9.8 knots (18.1 km/h; 11.3 mph) submerged
Range	8,420 nmi (15,590 km; 9,690 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 85 nmi (157 km; 98 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth	50 m (164 ft)
Complement	4 officers, 31 enlisted
Armament	4 × 50 cm (19.7 in) torpedo tubes 1 × 8.8 cm (3.5 in) SK L/30 deck gun
Service record
Part of:	IV Flotilla 1 August 1914 - Unknown end Training Flotilla Unknown start – 10 May 1917 IV Flotilla 10 May – 2 September 1917
Commanders:	Kptlt. Freiherr Georg-Günther von Forstner^[2] 1 August 1914 – 14 June 1916 Kptlt. Otto Rohrbeck^[3] 15 June – 4 August 1916 Kptlt. Freiherr von Loë-Degenhart^[4] 5 August 1916 – 14 January 1917 Kptlt. Georg Schmidt^[5] 15 January – 2 September 1917^[6]
Operations:	5 patrols
Victories:	39 merchant ships sunk (89,632 GRT) 1 auxiliary warship sunk (494 GRT) 3 merchant ships damaged (14,976 GRT) 2 merchant ships taken as prize (3,226 GRT)