For other ships of the same name, see German submarine U-40.
| SM UB-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) ↑[2] 303 t (298 long tons) ↓[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) ↑[2] 5.71 knots (10.57 km/h) ↓[2] |
| Range: |
7,030 nautical miles (13,020 km; 8,090 mi) @ 5 knots (9.3 km/h; 5.8 mph) ↑[2] 45 nmi (83 km; 52 mi) @ 4 knots ↓[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 language: 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[]
- ↑ "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[]
Bibliography[]
- Gröner, Erich (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. 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. I. Munich: Bernhard&Graefe. ISBN 3-7637-5213-7.
Coordinates: 51°13.5′N 2°56′E / 51.225°N 2.933°E
The original article can be found at SM UB-40 and the edit history here.