SM UB-143

For other ships with the same name, see German submarine U-143.

History
UB-148 at sea, a U-boat similar to UB-143.
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]
History
Japan
Name:	O 7
Commissioned:	1 December 1918^[2]
Fate:	Broken up in Yokohama in 1921.^[2]
General characteristics ^[2]
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^[2]
Armament:	5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) 10 torpedoes 1 × 10.5 cm (4.13 in) deck gun
Service record
Commanders:	Oblt.z.S. Hans Adalbert von der Lühe^[3] 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.^{[Note 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

Main article: German Type UB III submarine

Built by AG Weser of Bremen in one year of construction, UB-143 was launched at Bremen on 21 August 1918, 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). Displacement was 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.

References

Notes

↑ "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

↑ Rössler 1979, p. 56.
1 2 3 4 5 6 7 8 Gröner 1991, pp. 25-30.
↑ Helgason, Guðmundur. "WWI U-boat commanders: Hans Adalbert von der Lühe". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 11 March 2015.

Bibliography

Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 - 1945. Die deutschen U-Boote und ihre Werften (in German). I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.

German Type UB III submarines

SM UB-48 SM UB-49 SM UB-50 SM UB-51 SM UB-52 SM UB-53 SM UB-54 SM UB-55 SM UB-56 SM UB-57 SM UB-58 SM UB-59 SM UB-60 SM UB-61 SM UB-62 SM UB-63 SM UB-64 SM UB-65 SM UB-66 SM UB-67 SM UB-68 SM UB-69 SM UB-70 SM UB-71 SM UB-72 SM UB-73 SM UB-74 SM UB-75 SM UB-76 SM UB-77 SM UB-78 SM UB-79 SM UB-80 SM UB-81 SM UB-82 SM UB-83 SM UB-84 SM UB-85 SM UB-86 SM UB-87 SM UB-88 SM UB-89 SM UB-90 SM UB-91 SM UB-92 SM UB-93 SM UB-94 SM UB-95 SM UB-96 SM UB-97 SM UB-98 SM UB-99 SM UB-100 SM UB-101 SM UB-102 SM UB-103 SM UB-104 SM UB-105 SM UB-106 SM UB-107 SM UB-108 SM UB-109 SM UB-110 SM UB-111 SM UB-112 SM UB-113 SM UB-114 SM UB-115 SM UB-116 SM UB-117 SM UB-118 SM UB-119 SM UB-120 SM UB-121 SM UB-122 SM UB-123 SM UB-124 SM UB-125 SM UB-126 SM UB-127 SM UB-128 SM UB-129 SM UB-130 SM UB-131 SM UB-132 SM UB-133 SM UB-136 SM UB-142 SM UB-143 SM UB-144 SM UB-145 SM UB-148 SM UB-149 SM UB-150 SM UB-154 SM UB-155

Preceded by: Type UB II Followed by: Type VII (World War II)

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