SM U-29 (Germany)

	SM U 29, Commander Otto Weddigen, leaving harbour for his last cruise
History
German Empire
Name	U-29
Ordered	19 February 1912
Builder	Kaiserliche Werft Danzig
Yard number	19
Launched	11 October 1913
Commissioned	1 August 1914
Fate	Rammed and sunk by HMS Dreadnought on 18 March 1915
General characteristics
Class and type	German Type U 27 submarine
Displacement	675 t (664 long tons) surfaced; 878 t (864 long tons) submerged;
Length	64.70 m (212 ft 3 in) (o/a)
Beam	6.32 m (20 ft 9 in)
Draught	3.48 m (11 ft 5 in)
Speed	16.7 knots (30.9 km/h; 19.2 mph) surfaced; 9.8 knots (18.1 km/h; 11.3 mph) submerged;
Range	8,420 nmi (15,590 km; 9,690 mi) at 8 knots (15 km/h; 9.2 mph) surfaced; 85 nmi (157 km; 98 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged;
Test depth	50 m (164 ft)
Complement	4 officers, 31 enlisted
Armament	4 × 50 cm (19.7 in) torpedo tubes; 1 × 8.8 cm (3.5 in) SK L/30 deck gun;
Service record
Part of:	IV Flotilla; Unknown start – 18 March 1915;
Commanders:	Kptlt. Wilhelm Plange; 1 August 1914 – 15 February 1915 ; Kptlt. Otto Weddigen; 16 February – 18 March 1915;
Operations:	1 patrol
Victories:	4 merchant ships sunk ; (12,934 GRT); 2 merchant ships damaged (4,317 GRT);

SM U-29^{[Note 1]} was a Type U-27 U-boat of the Imperial German Navy. She served during the First World War.

U-29's last commander was Captain Otto Weddigen. U-29 was sunk with all hands on 18 March 1915 in the Pentland Firth after being rammed by HMS Dreadnought,^[2] the only submarine known to have been purposefully sunk by a battleship.

Summary of raiding history

Date	Name	Nationality	Tonnage^{[Note 2]}	Fate^[3]
11 March 1915	Adenwen	United Kingdom	3,798	Damaged
11 March 1915	Auguste Conseil	France	2,952	Sunk
12 March 1915	Andalusian	United Kingdom	2,349	Sunk
12 March 1915	Headlands	United Kingdom	2,988	Sunk
12 March 1915	Indian City	United Kingdom	4,645	Sunk
14 March 1915	Atalanta	United Kingdom	519	Damaged

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.
^ Tonnages are in gross register tons

Citations

^ Gröner 1991, pp. 6–7.
^ "History.ney.mil, Dreadnought". Archived from the original on 27 June 2014. Retrieved 30 December 2009.
^ Helgason, Guðmundur. "Ships hit by U 29". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

Bibliography

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.

58°42′58.5″N 3°6′52.5″W / 58.716250°N 3.114583°W / 58.716250; -3.114583

[2] "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.

[tonnage-4] Tonnages are in gross register tons

[FOOTNOTEGröner19916–7-1] Gröner 1991, pp. 6–7.

[3] "History.ney.mil, Dreadnought". Archived from the original on 27 June 2014. Retrieved 30 December 2009.

[5] Helgason, Guðmundur. "Ships hit by U 29". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

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