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 & 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 | |
| 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 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.
