SM UB-48

	UB-148 at sea, a U-boat similar to UB-48.
History
German Empire
Name	UB-48
Ordered	20 May 1916
Builder	Blohm & Voss, Hamburg
Cost	3,276,000 German Papiermark
Yard number	293
Launched	6 January 1917
Commissioned	11 June 1917
Fate	Scuttled at Pola on 28 October 1918 following the surrender of Austria-Hungary.
General characteristics
Class & type	Type UB III submarine
Displacement	516 t (508 long tons) surfaced; 651 t (641 long tons) submerged;
Length	55.30 m (181 ft 5 in) (o/a)
Beam	5.80 m (19 ft)
Draught	3.68 m (12 ft 1 in)
Propulsion	2 × propeller shaft; 2 × MAN four-stroke 6-cylinder diesel engine, 1,085 bhp (809 kW); 2 × Siemens-Schuckert electric motor, 780 shp (580 kW);
Speed	13.6 knots (25.2 km/h; 15.7 mph) surfaced; 8 knots (15 km/h; 9.2 mph) submerged;
Range	9,040 nmi (16,740 km; 10,400 mi) at 6 knots (11 km/h; 6.9 mph) surfaced; 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	50 m (160 ft)
Complement	3 officers, 31 men
Armament	5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern); 10 torpedoes; 1 × 8.8 cm (3.46 in) deck gun;
Service record
Part of:	Mittelmeer / Mittelmeer II Flotilla; 2 September 1917 – 28 October 1918;
Commanders:	Oblt.z.S. / Kptlt. Wolfgang Steinbauer; 11 June 1917 – 28 October 1918;
Operations:	9 patrols
Victories:	33 merchant ships sunk ; (106,848 GRT); 2 auxiliary warships sunk ; (947 GRT); 6 merchant ships damaged ; (24,618 GRT); 1 warship damaged ; (18,400 tons); 2 auxiliary warships damaged ; (495 GRT);

The SM UB-48 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. It was commissioned into the German Imperial Navy on 11 June 1917 as SM UB-48.

The submarine conducted nine patrols and sank 35 ships during the war for a total loss of 107,795 gross register tons (GRT) and one destroyer. It operated as part of the Pola Flotilla and later the II Mediterranean U-boat Flotilla based in Cattaro. UB-48 was one of the most successful U-boats serving in the Mediterranean. The boat was assigned the number U-79 in the Austro-Hungarian Navy. It was scuttled in Pola after the surrender of Austria-Hungary on 28 October 1918.

History
UB-148 at sea, a U-boat similar to UB-48.
German Empire
Name	UB-48
Ordered	20 May 1916
Builder	Blohm & Voss, Hamburg
Cost	3,276,000 German Papiermark
Yard number	293
Launched	6 January 1917
Commissioned	11 June 1917
Fate	Scuttled at Pola on 28 October 1918 following the surrender of Austria-Hungary.
General characteristics
Class & type	Type UB III submarine
Displacement	516 t (508 long tons) surfaced 651 t (641 long tons) submerged
Length	55.30 m (181 ft 5 in) (o/a)
Beam	5.80 m (19 ft)
Draught	3.68 m (12 ft 1 in)
Propulsion	2 × propeller shaft 2 × MAN four-stroke 6-cylinder diesel engine, 1,085 bhp (809 kW) 2 × Siemens-Schuckert electric motor, 780 shp (580 kW)
Speed	13.6 knots (25.2 km/h; 15.7 mph) surfaced 8 knots (15 km/h; 9.2 mph) submerged
Range	9,040 nmi (16,740 km; 10,400 mi) at 6 knots (11 km/h; 6.9 mph) surfaced 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	50 m (160 ft)
Complement	3 officers, 31 men
Armament	5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) 10 torpedoes 1 × 8.8 cm (3.46 in) deck gun
Service record
Part of:	Mittelmeer / Mittelmeer II Flotilla 2 September 1917 – 28 October 1918
Commanders:	Oblt.z.S. / Kptlt. Wolfgang Steinbauer 11 June 1917 – 28 October 1918
Operations:	9 patrols
Victories:	33 merchant ships sunk (106,848 GRT) 2 auxiliary warships sunk (947 GRT) 6 merchant ships damaged (24,618 GRT) 1 warship damaged (18,400 tons) 2 auxiliary warships damaged (495 GRT)