SM U-99

For other ships with the same name, see German submarine U-99.

History
German Empire
Name:	U-99
Ordered:	15 September 1915
Builder:	AG Weser, Bremen
Laid down:	30 November 1915
Launched:	27 January 1917
Commissioned:	28 March 1917
Fate:	Sunk by HMS J2 7 July 1917
General characteristics
Class & 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 1 × 8.8 cm (3.5 in) deck gun
Service record
Part of:	II Flotilla 7 June – 7 July 1917
Commanders:	Kptlt. Max Eltester 28 March – 7 July 1917
Operations:	1 patrol
Victories:	None

SM U-99 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-99 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

Operations

The Royal Navy submarine HMS J2 is credited with sinking U-99 in the Northern North Sea on 7 July 1917.