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 & 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
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 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, the only submarine known to have been purposefully sunk by a battleship.