SM UB-28

SM UB-45 a u-boat similar to UB-28
Career (German Empire)
Name:	UB-28
Ordered:	30 April 1915[1]
Builder:	AG Weser, Bremen[1]
Cost:	1,291,000 German Papiermark[2]
Yard number:	242[1]
Launched:	20 December 1915[1]
Commissioned:	27 December 1915[3]
Fate:	surrendered 24 November 1918[3]
General characteristics
Class & type:	German Type UB II submarine
Displacement:	265 t (261 long tons) surfaced[2] 291 t (286 long tons) submerged[2]
Length:	36.13 m (118 ft 6 in)[2]
Beam:	436 m (1,430 ft 5 in)[2]
Draft:	3.66 m (12 ft 0 in)[2]
Propulsion:	2 × propeller shafts 2 × Benz diesel engines, 270 shp (200 kW)[2] 2 × Siemens-Schuckert electric motor, 280 shp (210 kW)[2]
Speed:	8.9 knots (16.5 km/h) surfaced[2] 5.72 knots (10.59 km/h) submerged[2]
Range:	7,200 nautical miles (13,300 km; 8,300 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced[2] 45 nmi (83 km; 52 mi) at 4 knots submerged[2]
Test depth:	50 m (160 ft)[2]
Complement:	2 officers, 21 men[2]
Armament:	2 × 50 cm (19.7 in) torpedo tubes[2] 4 × torpedoes (later 6) 1 × 5 cm SK L/40 gun[2]
Notes:	30-second diving time[2]

SM UB-28 was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 30 April 1915 and launched on 20 December 1915. She was commissioned into the German Imperial Navy on 27 December 1915 as SM UB-28.^{[Note 1]}

UB-28 was surrendered to Britain in accordance with the requirements of the Armistice with Germany on 24 November 1918. She was ultimately broken up at Bo'ness in 1919-20.^[3]

Notes

References

Bibliography