SM UC-34

History
German Empire
Name:	UC-34
Ordered:	20 November 1915
Builder:	Blohm & Voss, Hamburg
Yard number:	275
Launched:	6 May 1916
Commissioned:	25 September 1916
Fate:	scuttled at Pola, October 1918
General characteristics
Class and type:	German Type UC II submarine
Displacement:	427 t (420 long tons), surfaced 509 t (501 long tons), submerged
Length:	50.35 m (165 ft 2 in) o/a 40.30 m (132 ft 3 in) pressure hull
Draught:	3.65 m (12 ft)
Propulsion:	2 × propeller shafts 2 × 6-cylinder, 4-stroke diesel engines, 500 bhp (370 kW) 2 × electric motors, 460 shp (340 kW)
Speed:	11.6 knots (21.5 km/h; 13.3 mph), surfaced 6.8 knots (12.6 km/h; 7.8 mph), submerged
Range:	10,180 nmi (18,850 km; 11,710 mi) at 7 knots (13 km/h; 8.1 mph) surfaced 54 nmi (100 km; 62 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth:	50 m (160 ft)
Complement:	26
Armament:	6 × 100 cm (39.4 in) mine tubes 18 × UC 200 mines 3 × 50 cm (19.7 in) torpedo tubes (2 bow/external; one stern) 7 × torpedoes 1 × 8.8 cm (3.46 in) Uk L/30 deck gun
Notes:	35-second diving time
Service record
Part of:	Pola/Mittelmeer II Flotilla 8 January 1917 – 30 October 1918
Commanders:	Oblt.z.S. Robert Sprenger 26 September 1916 – 15 July 1917 Oblt.z.S. Horst Obermüller 16 July 1917 – 14 July 1918 Oblt.z.S. Hans Schüler 15 July – 30 October 1918
Operations:	9 patrols
Victories:	17 merchant ships sunk (51,527 GRT) 3 merchant ships damaged (14,001 GRT) 4 warships sunk (14,593 tons)

SM UC-34 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 20 November 1915 and was launched on 6 May 1916. She was commissioned into the German Imperial Navy on 25 September 1916 as SM UC-34. In nine patrols UC-34 was credited with sinking 21 ships, either by torpedo or by mines laid.

On 30 December 1917 under the command of Oberleutnant zur See Horst Obermüller, UC-34 torpedoed the British troop ship HMT Aragon off the Port of Alexandria.Aragon's escort, the destroyer HMS Attack, rescued 300 to 400 survivors but then UC-34 torpedoed and sank her was well. Of 2,500 personnel who had been aboard Aragon, 610 were killed.

UC-34 was scuttled at Pola on 28 October 1918 on the surrender of Austria-Hungary.

A German Type UC II submarine, UC-34 had a displacement of 427 tonnes (420 long tons) when at the surface and 509 tonnes (501 long tons) while submerged. She had a length overall of 50.35 m (165 ft 2 in) o/a, a beam of 5.22 m (17 ft 2 in), and a draught of 3.65 m (12 ft). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 300 metric horsepower (220 kW; 300 shp) (a total of 600 metric horsepower (440 kW; 590 shp)), two electric motors producing 460 metric horsepower (340 kW; 450 shp), and two propeller shafts. She had a dive time of 35 seconds and was capable of operating at a depth of 50 metres (160 ft).

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