SM U-93

History
German Empire
Name:	U-93
Ordered:	15 September 1915
Builder:	Germaniawerft, Kiel
Yard number:	257
Laid down:	12 January 1916
Launched:	15 December 1916
Commissioned:	10 February 1917
Fate:	Lost to unknown cause off Hardelot, France in January 1918.
General characteristics
Class and type:	German Type U 93 submarine
Displacement:	838 t (825 long tons) surfaced 1,000 t (980 long tons) submerged
Length:	71.55 m (234 ft 9 in) (o/a) 56.05 m (183 ft 11 in) (pressure hull)
Beam:	6.30 m (20 ft 8 in) (o/a) 4.15 m (13 ft 7 in) (pressure hull)
Height:	8.25 m (27 ft 1 in)
Draught:	3.94 m (12 ft 11 in)
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 × 1.66 m (5 ft 5 in) propellers
Speed:	16.8 knots (31.1 km/h; 19.3 mph) surfaced 8.6 knots (15.9 km/h; 9.9 mph) submerged
Range:	9,020 nmi (16,710 km; 10,380 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 52 nmi (96 km; 60 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth:	50 m (160 ft)
Complement:	4 officers, 32 enlisted
Armament:	6 × 50 cm (19.7 in) torpedo tubes (four bow, two stern) 10-12 torpedoes 1 × 8.8 cm (3.5 in) SK L/30 deck gun
Service record
Part of:	IV Flotilla 5 April 1917 – 15 January 1918
Commanders:	Kptlt. Edgar von Spiegel von und zu Peckelsheim 10 February – 30 April 1917 Oblt.z.S. Wilhelm Ziegner 30 April – 22 May 1917 Oblt.z.S. Helmut Gerlach 23 May 1917 – 15 January 1918
Operations:	5 patrols
Victories:	34 merchant ships sunk (87,872 GRT) 2 merchant ships damaged (12,429 GRT) 1 warship damaged (199 tons)

SM U-93 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-93 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

German Type U 93 submarines were preceded by the shorter Type U 87 submarines. U-93 had a displacement of 838 tonnes (825 long tons) when at the surface and 1,000 tonnes (980 long tons) while submerged. She had a total length of 71.55 m (234 ft 9 in), a pressure hull length of 56.05 m (183 ft 11 in), a beam of 6.30 m (20 ft 8 in), a height of 8.25 m (27 ft 1 in), and a draught of 3.94 m (12 ft 11 in). The submarine was powered by two 2,400 metric horsepower (1,800 kW; 2,400 shp) engines for use while surfaced, and two 1,200 metric horsepower (880 kW; 1,200 shp) engines for use while submerged. She had two propeller shafts. She was capable of operating at depths of up to 50 metres (160 ft).

The submarine had a maximum surface speed of 16.8 knots (31.1 km/h; 19.3 mph) and a maximum submerged speed of 8.6 knots (15.9 km/h; 9.9 mph). When submerged, she could operate for 52 nautical miles (96 km; 60 mi) at 5 knots (9.3 km/h; 5.8 mph); when surfaced, she could travel 9,020 nautical miles (16,710 km; 10,380 mi) at 8 knots (15 km/h; 9.2 mph). U-93 was fitted with six 50 centimetres (20 in) torpedo tubes (four at the bow and two at the stern), twelve to sixteen torpedoes, and one 8.8 cm (3.5 in) SK L/30 deck gun. She had a complement of thirty-six (thirty-two crew members and four officers).

Since February 1917 she was commanded by the late author of books (e.g. U boat 202. The war diary of a German submarine, 1919) and experienced submarine commander Edgar von Spiegel von und zu Peckelsheim

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