SM U-25

Last updated
History
War Ensign of Germany 1903-1918.svg German Empire
NameU-25
Ordered18 March 1911
BuilderGermaniawerft, Kiel
Yard number179
Laid down7 May 1912
Launched12 July 1913
Commissioned9 May 1914
Fate23 February 1919 - Surrendered to France. Broken up at Cherburg in 1921-2.
General characteristics Ocean-going diesel submarine
Class & type Type U 23 submarine
Displacement
  • 669  t (658 long tons) surfaced
  • 864 t (850 long tons) submerged
Length64.70 m (212.3 ft)
Beam6.32 m (20 ft 9 in)
Draught3.45 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
  • 7,620  nmi (14,110 km; 8,770 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 depthabout 50 m (160 ft)
Boats & landing
craft carried
1 dingi
Complement4 officers, 31 men
Armament
Service record [1]
Part of:
  • IV Flotilla
  • 1 August 1914 – Unknown end
  • Training Flotilla
  • Unknown start – 11 November 1918
Commanders:
Operations: 3 patrols
Victories:
  • 21 merchant ships sunk
    (14,145  GRT)
  • 1 merchant ships damaged
    (163  GRT)

SM U-25 [Note 1] was one of the 329 submarines serving in the Imperial German Navy in World War I.

Contents

U-25 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

Summary of raiding history

DateNameNationalityTonnage [Note 2] Fate [3]
7 June 1915 Glittertind Flag of Norway.svg Norway 717Sunk
7 June 1915 Nottingham Civil Ensign of the United Kingdom.svg United Kingdom 165Sunk
7 June 1915 Pentland Civil Ensign of the United Kingdom.svg United Kingdom 204Sunk
7 June 1915 Saturn Civil Ensign of the United Kingdom.svg United Kingdom 183Sunk
7 June 1915 Velocity Civil Ensign of the United Kingdom.svg United Kingdom 186Sunk
9 June 1915 Cardiff Civil Ensign of the United Kingdom.svg United Kingdom 163Sunk
9 June 1915 Castor Civil Ensign of the United Kingdom.svg United Kingdom 182Sunk
9 June 1915 J. Leyman Civil Ensign of the United Kingdom.svg United Kingdom 197Sunk
9 June 1915 Tunisian Civil Ensign of the United Kingdom.svg United Kingdom 211Sunk
4 July 1915 Sunbeam Civil Ensign of the United Kingdom.svg United Kingdom 132Sunk
8 July 1915 Anna Flag of Russia.svg Russian Empire 2,000Sunk
8 July 1915 Guido Civil Ensign of the United Kingdom.svg United Kingdom 2,093Sunk
9 July 1915 Nordaas Flag of Norway.svg Norway 1,111Sunk
11 July 1915 Hainton Civil Ensign of the United Kingdom.svg United Kingdom 156Sunk
11 July 1915 Syrian Civil Ensign of the United Kingdom.svg United Kingdom 176Sunk
11 July 1915FleetwoodCivil Ensign of the United Kingdom.svg United Kingdom 163Damaged
6 August 1915 Maj Flag of Sweden.svg Sweden 920Sunk
7 August 1915 Norman Flag of Norway.svg Norway 1,060Sunk
10 August 1915 Aura Flag of Norway.svg Norway 396Sunk
14 August 1915 Albis Flag of Norway.svg Norway 1,381Sunk
17 August 1915 Mineral Flag of Norway.svg Norway 649Sunk
19 August 1915 Bras Flag of Norway.svg Norway 1,863Sunk

References

Notes

  1. "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
  2. Tonnages are in gross register tons

Citations

  1. Helgason, Guðmundur. "WWI U-boats: U 25". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 December 2014.
  2. "short biography of Emil Heusinger von Waldegg". Axis Biographical Research (in German). Retrieved 21 July 2016.
  3. Helgason, Guðmundur. "Ships hit by U 25". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 December 2014.

Bibliography