SM UB-19

For other ships with the same name, see German submarine U-19.

SM UB-45, a U-boat similar to UB-19
History
German Empire
Name	UB-19
Ordered	30 April 1915 [1]
Builder	Blohm & Voss, Hamburg [1]
Yard number	249 [1]
Launched	2 September 1915 [1]
Commissioned	16 December 1915 [1]
Fate	Sunk, 30 November 1916
General characteristics [2]
Class & type	Type UB II submarine
Displacement	263  t (259 long tons) surfaced 292 t (287 long tons) submerged
Length	36.13 m (118 ft 6 in) o/a 27.13 m (89 ft) pressure hull
Beam	4.36 m (14 ft 4 in) o/a 3.85 m (13 ft) pressure hull
Draught	3.70 m (12 ft 2 in)
Propulsion	1 × propeller shaft 2 × four-stroke 6-cylinder diesel engine, 284 PS (209 kW; 280 bhp) 2 × electric motor, 280 PS (210 kW; 280 shp)
Speed	9.15 knots (16.95 km/h; 10.53 mph) surfaced 5.81 knots (10.76 km/h; 6.69 mph) submerged
Range	6,650  nmi (12,320 km; 7,650 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced 45 nmi (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	50 m (160 ft)
Complement	2 officers, 21 men
Armament	2 × 50 cm (19.7 in) torpedo tubes 4 × torpedoes (later 6) 1 × 5 cm SK L/40 gun
Notes	45-second diving time
Service record
Part of:	Flandern Flotilla 1 March – 30 November 1916
Commanders:	Kptlt. Walter Gustav Becker [3] 17 December 1915 – 3 November 1916 Oblt.z.S. Erich Noodt [4] 4 – 30 November 1916
Operations:	15 patrols
Victories:	13 merchant ships sunk (10,040  GRT) 1 merchant ship damaged (3,020  GRT) 1 merchant ship taken as prize (1,970  GRT)

SM UB-19 ^{[Note 1]} 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 30 April 1915 and launched on 2 September 1915. She was commissioned into the German Imperial Navy on 16 December 1915 as SM UB-19. The submarine sank 13 ships in 15 patrols for a total of 10,040  gross register tons  (GRT). UB-19 was sunk in the English Channel at 49°56′N2°45′W / 49.933°N 2.750°W / 49.933; -2.750 on 30 November 1916 by British Q ship HMS Penshurst (Q 7). ^[2]

Design

A Type UB II submarine, ‘’UB-19’’ had a displacement of 263 tonnes (259 long tons) when at the surface and 292 tonnes (287 long tons) while submerged. They had a length overall of 36.13 m (118 ft 6 in), a beam of 4.54 m (14 ft 11 in), and a draught of 3.70 m (12 ft 2 in). The submarine was powered by two Daimler six-cylinder four-stroke diesel engines each producing 284 metric horsepower (209 kW; 280 shp) (a total of 600 metric horsepower (440 kW; 590 shp)), two Siemens-Schuckert electric motors producing 280 metric horsepower (210 kW; 280 shp), and one propeller shaft. She had a dive time of 32 seconds and was capable of operating at a depth of 50 metres (160 ft). ^[2]

The submarine's top submerged speed was 5.81 knots and its top surface speed was 9.15 knots (16.95 km/h; 10.53 mph). When submerged, she could operate for 45 nautical miles (83 km; 52 mi) at 5 knots (9.3 km/h; 5.8 mph); when surfaced she could travel 6,650 nautical miles (12,320 km; 7,650 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-19 was fitted with two 50 centimetres (20 in) torpedo tubes in the bow, four torpedoes, and one 5 cm (2.0 in) Tk L/40 deck gun. Her complement was twenty-three crew members. ^[2]

Summary of raiding history

Date	Name	Nationality	Tonnage [Note 2]	Fate [5]
18 May 1916	Osprey	United Kingdom	18	Sunk
24 July 1916	Mars	Norway	106	Sunk
10 August 1916	San Bernardo	United Kingdom	3,803	Sunk
4 October 1916	Jennie Bullas	United Kingdom	26	Sunk
4 October 1916	Jersey	United Kingdom	162	Sunk
4 October 1916	Rado	United Kingdom	182	Sunk
5 October 1916	Rover	United Kingdom	42	Sunk
25 October 1916	Comtesse De Flandre	Belgium	1,810	Sunk
26 October 1916	Iduna	France	165	Sunk
10 November 1916	Koningin Regentes	Netherlands	1,970	Captured as prize
23 November 1916	Ernaston	United Kingdom	3,020	Damaged
24 November 1916	Jerseyman	United Kingdom	358	Sunk
27 November 1916	Belle Ile	Norway	1,884	Sunk
27 November 1916	Visborg	Norway	1,343	Sunk
30 November 1916	Behrend	United Kingdom	141	Sunk

References

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.
2. Tonnages are in gross register tons

Citations

1. Rössler 1979, p. 64.
2. Gröner 1991, pp. 23–25.
3. Helgason, Guðmundur. "WWI U-boat commanders: Walter Gustav Becker". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 29 January 2015.
4. Helgason, Guðmundur. "WWI U-boat commanders: Erich Noodt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 29 January 2015.
5. Helgason, Guðmundur. "Ships hit by UB-19". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 26 January 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. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN   0-85177-593-4.
• Rössler, Eberhard (1979). Die deutschen U-Boote und ihre Werften: eine Bilddokumentation über den deutschen U-Bootbau; in zwei Bänden (in German). Vol. I. Munich: Bernard & Graefe. ISBN   3-7637-5213-7.