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 and 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.

Fate

The boat did not return from sea in August 1915, and is assumed to have struck a mine off the coast of Finland, being lost with its entire crew of 30.

Wreck discovered

The boat was found in the western Gulf of Finland as reported by the Finnish newspaper Helsingin Sanomat in May 2014.^[2]^[3]

Summary of raiding history

Date	Name	Nationality	Tonnage^{[Note 1]}	Fate^[4]
11 October 1914	Pallada	Imperial Russian Navy	7,775	Sunk
23 April 1915	Fråck	Russian Empire	849	Sunk
4 June 1915	Yenisei	Imperial Russian Navy	3,600	Sunk
25 August 1915	Petshora	Imperial Russian Navy	1,982	Sunk
30 August 1915	Zemlya	Russian Empire	869	Sunk

References

Notes

^ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

Citations

^ Helgason, Guðmundur. "WWI U-boat commanders: Egewolf Freiherr von Berckheim (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.
^ Unto Hämäläinen, Sata vuotta etsitty sukellusvene U-26 löytyi. Helsingin Sanomat, May 29, 2014 p. A 15
^ "Tältä näyttää sata vuotta vanhan U26-sukellusveneen hylky Suomenlahden pohjassa – video". 2 June 2014.
^ Helgason, Guðmundur. "Ships hit by U 26". 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.

59°40′N 25°50′E / 59.667°N 25.833°E / 59.667; 25.833

[tonnage-4] Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

[1] Helgason, Guðmundur. "WWI U-boat commanders: Egewolf Freiherr von Berckheim (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

[2] Unto Hämäläinen, Sata vuotta etsitty sukellusvene U-26 löytyi. Helsingin Sanomat, May 29, 2014 p. A 15

[3] "Tältä näyttää sata vuotta vanhan U26-sukellusveneen hylky Suomenlahden pohjassa – video". 2 June 2014.

[5] Helgason, Guðmundur. "Ships hit by U 26". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.

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