SM U-26

	SM U-26 sinks the Russian armoured cruiser Pallada with a torpedo on 11 October 1914 in the Gulf of Finland.
History
German Empire
Name	U-26
Ordered	18 March 1911
Builder	Germaniawerft, Kiel
Yard number	180
Laid down	31 May 1912
Launched	16 October 1913
Commissioned	20 May 1914
Fate	Sunk by a Russian mine in Gulf of Finland on 31 August or 4 September 1915 (all hands lost).
General characteristics Ocean-going diesel submarine
Class & type	German Type U 23 submarine
Displacement	669 t (658 long tons) surfaced; 864 t (850 long tons) submerged;
Length	64.70 m (212.3 ft)
Beam	6.32 m (20 ft 9 in)
Draught	3.45 m (11 ft 4 in)
Propulsion	2 shafts; 2 × Germania 6-cylinder two stroke diesel motors with 1,800 PS (1,320 kW; 1,780 shp); 2 × SSW double Motordynamos with 1,200 PS (880 kW; 1,180 shp); 450rpm surfaced; 330 rpm submerged;
Speed	16.7 knots (30.9 km/h; 19.2 mph) surfaced; 10.3 knots (19.1 km/h; 11.9 mph) submerged;
Range	9,910 nmi (18,350 km; 11,400 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	about 50 m (160 ft)
Boats & landing; craft carried	1 dingi
Complement	4 officers, 31 men
Armament	4 × 50 cm (19.7 in) torpedo tubes (2 each bow and stern); 6 torpedoes; 1 × 8.8 cm (3.5 in) SK L/30 gun;
Service record
Part of:	IV Flotilla; 1 August 1914 – Unknown end; Baltic Flotilla; Unknown start – 30 September 1915;
Commanders:	Kptlt. Egewolf Freiherr von Berckheim; 1 August – 17 December 1914 &; 13 January – 30 September 1915;
Operations:	1 patrol
Victories:	3 merchant ships sunk ; (3,700 GRT); 2 warships sunk ; (11,375 tons);

SM U-26 was one of the 329 submarines serving in the Imperial German Navy (Kaiserliche Marine) in World War I.

U-26 was engaged in the submarine war in the Baltic Sea. On 11 October 1914, she sank the cruiser Pallada, inflicting the first loss of the war on the Russian Navy.