SM U-100

For other ships with the same name, see German submarine U-100.

History

German Empire
Name:	U-100
Ordered:	15 September 1915
Builder:	AG Weser, Bremen
Laid down:	30 November 1915
Launched:	25 February 1917
Commissioned:	16 April 1917
Fate:	Surrendered 27 November 1918
General characteristics ^[1]
Class and type:	German Type U 57 submarine
Displacement:	750 t (740 long tons) surfaced 952 t (937 long tons) submerged
Length:	67.60 m (221 ft 9 in) (o/a) 54.02 m (177 ft 3 in) (pressure hull)
Beam:	6.32 m (20 ft 9 in) (o/a) 4.05 m (13 ft 3 in) (pressure hull)
Height:	8.25 m (27 ft 1 in)
Draught:	3.65 m (12 ft)
Installed power:	2 × 2,400 PS (1,765 kW; 2,367 shp) surfaced 2 × 1,200 PS (883 kW; 1,184 shp) submerged
Propulsion:	2 shafts, 2 × 1.65 m (5 ft 5 in) propellers
Speed:	16.5 knots (30.6 km/h; 19.0 mph) surfaced 8.8 knots (16.3 km/h; 10.1 mph) submerged
Range:	10,100 nmi (18,700 km; 11,600 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 56 nmi (104 km; 64 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth:	50 m (164 ft 1 in)
Complement:	4 officers, 32 enlisted
Armament:	4 × 50 cm (19.7 in) torpedo tubes (two bow, two stern) 10–12 torpedoes 1 × 10.5 cm (4.1 in) deck gun
Service record
Part of:	Imperial German Navy: II Flotilla 31 May 1917 – 11 November 1918
Commanders:	Kptlt. Freiherr Degenhart von Loë^[2] 31 May 1917 – 30 September 1918 Kptlt. Friedrich Götting^[3] 1 October – 11 November 1918
Operations:	8 patrols
Victories:	10 merchant ships sunk (34,505 GRT) 2 merchant ships damaged (5,272 GRT)

SM U-100^{[Note 1]} was one of the 329 submarines serving in the Imperial German Navy in World War I. U-100 was engaged in the German campaign against Allied commerce (Handelskrieg) during that conflict.^[4]

Summary of raiding history

Date	Name	Nationality	Tonnage^{[Note 2]}	Fate^[5]
14 June 1917	Cedarbank	Norway	2,825	Sunk
17 June 1917	Gunhild	Denmark	996	Sunk
22 June 1917	Melford Hall	United Kingdom	6,339	Sunk
5 August 1917	Kathleen	United Kingdom	3,915	Sunk
9 August 1917	Blagdon	United Kingdom	1,996	Sunk
27 December 1917	Adela	United Kingdom	685	Sunk
15 February 1918	Thalatta I	Netherlands	358	Damaged
21 February 1918	Rio Verde	United Kingdom	4,025	Sunk
16 April 1918	Lake Michigan	United Kingdom	9,288	Sunk
9 June 1918	Helene	Netherlands	112	Sunk
21 June 1918	Homer City	United Kingdom	4,914	Damaged
21 June 1918	Montebello	United Kingdom	4,324	Sunk

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

↑ Gröner 1991, pp. 12-14.
↑ Helgason, Guðmundur. "WWI U-boat commanders: Freiherr Degenhart von Loë". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2015.
↑ Helgason, Guðmundur. "WWI U-boat commanders: Friedrich Götting". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2015.
↑ Helgason, Guðmundur. "WWI U-boats: 100". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2010.
↑ Helgason, Guðmundur. "Ships hit by U 100". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2015.

Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

German Type U 57 submarine

SM U-57 SM U-58 SM U-59 SM U-60 SM U-61 SM U-62 SM U-99 SM U-100 SM U-101 SM U-102 SM U-103 SM U-104

Preceded by: Type U 51 Followed by: Type U 63 List of U-boats of Germany

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