SM U-29 (Germany)

For other ships with the same name, see German submarine U-29.

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

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 [1]
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)

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