SM UB-70

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For other ships of the same name, see German submarine U-70.
UB 148 at sea 2.jpeg
UB-148 at sea, a U-boat similar to UB-70.
Career (German Empire)
Name: UB-70
Ordered: 20 May 1916[1]
Builder: Friedrich Krupp Germaniawerft, Kiel[2]
Cost: 3,276,000 German Papiermark[2]
Yard number: 288[2]
Launched: 7 August 1917[3]
Commissioned: 12 October 1917[3]
Fate: lost in the Mediterranean 8 May 1918, reasons unknown[3]
General characteristics
Class & type: German Type UB III submarine
Displacement: 513 t (505 long tons; 565 short tons) surfaced
647 t (637 long tons; 713 short tons) submerged[2]
Length: 55.83 m (183.2 ft) o/a[2]
Beam: 5.8 m (19 ft)[2]
Draught: 3.67 m (12.0 ft)[2]
Propulsion: 2 shafts
6-cylinder MAN diesel engines,[4] 1,100 ihp (820 kW)
Siemens-Schuckert[4] electric motors, 788 ihp (588 kW)[2]
Speed: 13.2 knots (24.4 km/h; 15.2 mph) surfaced
7.6 knots (14.1 km/h; 8.7 mph) submerged[2]
Range: 9,090 nmi (16,830 km; 10,460 mi) at 6 kn (11 km/h; 6.9 mph) surfaced
55 nmi (102 km; 63 mi) at 4 kn (7.4 km/h; 4.6 mph) submerged[2]
Test depth: 50 m (160 ft)[4]
Complement: 3 officers, 31 men[4]
Armament: • 5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) with 10 torpedoes
• 1 × 8.8 cm (3.46 in) deck gun[4]
Service record
Part of:
Commanders:

SM UB-70 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 29 October 1917 as SM UB-70.[nb 1]

UB-70 was serving in the Mediterranean when she was lost on 8 May 1918 for unknown reasons.[3]

Construction[edit]

She was built by Friedrich Krupp Germaniawerft of Kiel[2] and following just under a year of construction, launched at Kiel on 17 August 1917. UB-70 was commissioned later that same year . Like all Type UB III submarines, UB-70 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-70 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9,090 nautical miles (16,830 km).[2] UB-70 had a displacement of 513 t (505 long tons; 565 short tons) while surfaced and 647 t (637 long tons; 713 short tons) when submerged. Her engines enabled her to travel at 13.2 knots (24.4 km/h; 15.2 mph) when surfaced and 7.6 knots (14.1 km/h; 8.7 mph) when submerged.[2]


Notes[edit]

Footnotes
  1. ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
Citations
  1. ^ Rössler 1979, p. 28.
  2. ^ a b c d e f g h i j k l m n Gröner 1985, p. 52.
  3. ^ a b c d Gröner 1985, p. 54.
  4. ^ a b c d e Gröner 1985, p. 53.


References[edit]