SM UB-40

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For other ships of the same name, see German submarine U-40.

SM UB-45 a u-boat similar to UB-40
Career (German Empire)
Name: UB-40
Ordered: 22 July 1915[1]
Builder: Blohm & Voss, Hamburg[1]
Cost: 1,152,000 German Papiermark[2]
Yard number: 264[3]
Launched: 25 April 1916[3]
Completed: 18 August 1916[3]
Commissioned: 17 August 1916[4]
Fate: scuttled during the retreat from Belgium[4]
General characteristics
Class & type: German Type UB II submarine
Displacement: 274 t (270 long tons) surfaced[2]
303 t (298 long tons) submerged[2]
Length: 36.9 m (121 ft 1 in)[2]
Beam: 437 m (1,433 ft 9 in)[2]
Draft: 3.69 m (12 ft 1 in)[2]
Propulsion: 2 × propeller shafts
2 × Körting diesel engines, 284 shp (212 kW)[2]
2 × Siemens-Schuckert electric motor, 280 shp (210 kW)[2]
Speed: 9.06 knots (16.78 km/h; 10.43 mph) surfaced[2]
5.71 knots (10.57 km/h; 6.57 mph) submerged[2]
Range: 7,030 nautical miles (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced[2]
45 nmi (83 km; 52 mi) at 4 knots submerged[2]
Test depth: 50 m (160 ft)[2]
Complement: 2 officers, 21 men[2]
Armament: 2 × 50 cm (19.7 in) torpedo tubes[2]
4 × torpedoes (later 6)
1 × 5 cm SK L/40 gun[2]
Notes: 42-second diving time[2]

SM UB-40 was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 22 July 1915 and launched on 25 April 1916. She was commissioned into the German Imperial Navy on 17 August 1916 as SM UB-40.[Note 1]

The submarine sank 100 ships in 28 patrols. UB-40 was scuttled in Ostende when the German army retreated from Belgium on 5 October 1918.[4]

The wreck of UB-40 is located & identified by divers in the recent years.[5]

Notes

  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

  1. ↑ 1.0 1.1 Rössler 1979, p. 64.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 Gröner 1985, p. 50.
  3. ↑ 3.0 3.1 3.2 Rössler 1979, p. 65.
  4. ↑ 4.0 4.1 4.2 Gröner 1985, p. 51.
  5. ↑ wrecksite.eu

Bibliography

  • Gröner, Erich (1985). "U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher". Die deutschen Kriegsschiffe, 1815-1945 III (Koblenz: Bernhard&Graefe). ISBN 3-7637-4802-4. 
  • Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal. Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7. 
  • 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 I (Munich: Bernhard&Graefe). ISBN 3-7637-5213-7. 


  • List of German U-boats

Coordinates: 51°13.5′N 2°56′E / 51.2250°N 2.933°E / 51.2250; 2.933


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