SM UB-143

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For other ships of the same name, see German submarine U-143.
UB 148 at sea 2.jpeg
UB-148 at sea, a U-boat similar to UB-143.
Career (German Empire)
Name: UB-143
Ordered: 27 June 1917[1]
Builder: AG Weser, Bremen
Cost: 4,301,000 German Papiermark
Yard number: 309
Launched: 21 August 1918[2]
Commissioned: 3 October 1918[2]
Fate: Surrendered to Japan, served in Imperial Japanese Navy as O 7.[2]
Career (Japan)
Name: O 7
Commissioned: 1 December 1918[2]
Fate: Broken up in Yokohama in 1921.[2]
General characteristics [3]
Class and type: German Type UB III submarine
Displacement: 523 t (515 long tons) surfaced
653 t (643 long tons) submerged
Length: 55.85 m (183 ft 3 in) (o/a)
Beam: 5.80 m (19.0 ft)
Draught: 3.75 m (12 ft 4 in)
Propulsion: 2 × propeller shaft
2 × Benz four-stroke 6-cylinder diesel engines, 1,050 bhp (780 kW)
2 × Schiffsunion electric motors, 780 shp (580 kW)
Speed: 13.5 knots (25.0 km/h; 15.5 mph) surfaced
7.5 knots (13.9 km/h; 8.6 mph) submerged
Range: 7,280 nmi (13,480 km; 8,380 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[4]
Armament:
Service record
Commanders: Oblt.z.S. Hans Adalbert von der Lühe[5]
3 October – 11 November 1918
Operations: No patrols
Victories: None

SM UB-143 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 3 October 1918 as SM UB-143.[nb 1]

She was surrendered to Japan on 1 December 1918 and served in the Imperial Japanese Navy until 1921, when she was broken up in Yokohama.[2]

Construction[edit]

She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 21 August 1918. UB-143 carried 10 torpedoes and was armed with a 10.5 cm (4.13 in) deck gun. UB-143 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,280 nautical miles (13,480 km; 8,380 mi). UB-143 had a displacement of 523 t (515 long tons) while surfaced and 653 t (643 long tons) when submerged. Her engines enabled her to travel at 13.5 knots (25.0 km/h; 15.5 mph) when surfaced and 7.5 knots (13.9 km/h; 8.6 mph) when submerged.

Notes[edit]

  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.

References[edit]

  1. ^ Rössler 1979, p. 56.
  2. ^ a b c d e f Gröner 1985, p. 56.
  3. ^ Gröner 1985, pp. 52-53.
  4. ^ Gröner 1985, p. 53.
  5. ^ Helgason, Guðmundur. "Hans Adalbert von der Lühe". German and Austrian U-Boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 11 March 2015. 

Bibliography[edit]