UB-148 at sea, a U-boat similar to UB-79.
History
German Empire
Name	UB-79
Ordered	23 September 1916[1]
Builder	Blohm & Voss, Hamburg
Cost	3,338,000 German Papiermark
Yard number	308
Launched	3 June 1917[2]
Commissioned	27 October 1917[2]
Fate	Surrendered 26 November 1918.[2]
General characteristics [2]
Class and type	Type UB III submarine
Displacement	516 t (508 long tons) surfaced 648 t (638 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 engines, 1,085 bhp (809 kW) 2 × Siemens-Schuckert electric motors, 780 shp (580 kW)
Speed	13.6 knots (25.2 km/h; 15.7 mph) surfaced 7.8 knots (14.4 km/h; 9.0 mph) submerged
Range	8,680 nmi (16,080 km; 9,990 mi) at 8 knots (15 km/h; 9.2 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[2]
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
Commanders:	Kptlt. Woldemar Petri[3] 27 October – 30 November 1917
Operations:	No patrols
Victories:	None

SM UB-79 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 27 October 1917 as SM UB-79.^{[Note 1]}

UB-79 was surrendered in accordance with the requirements of the Armistice with Germany on 26 November 1918 and broken up at Swansea in 1922.^[2]

She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 3 June 1917. UB-79 was commissioned later that same year under the command of Kptlt. Woldemar Petri. Like all Type UB III submarines, UB-79 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-79 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,680 nautical miles (16,080 km; 9,990 mi). UB-79 had a displacement of 516 t (508 long tons) while surfaced and 648 t (638 long tons) when submerged. Her engines enabled her to travel at 13.6 knots (25.2 km/h; 15.7 mph) when surfaced and 7.8 knots (14.4 km/h; 9.0 mph) when submerged.