German submarine U-110 (1940)

U-110 and HMS Bulldog
History
Nazi Germany
Name	U-110
Ordered	24 May 1938
Builder	DeSchiMAG AG Weser, Bremen
Yard number	973
Laid down	1 February 1940
Launched	25 August 1940
Commissioned	21 November 1940
Homeport	Lorient, France
Fate	Captured, 9 May 1941, sunk the following day
General characteristics
Class and type	Type IXB submarine
Displacement	1,051 t (1,034 long tons) surfaced 1,178 t (1,159 long tons) submerged
Length	76.50 m (251 ft) o/a 58.75 m (192 ft 9 in) pressure hull
Beam	6.76 m (22 ft 2 in) overall 4.40 m (14 ft 5 in) pressure hull
Draught	4.70 m (15 ft 5 in)
Installed power	4,400 PS (3,200 kW; 4,300 bhp) (diesels) 1,000 PS (740 kW; 990 bhp) (electric)
Propulsion	2 shafts 2 × diesel engines 2 × electric motors
Speed	18.2 knots (33.7 km/h; 20.9 mph) surfaced 7.3 knots (13.5 km/h; 8.4 mph) submerged
Range	12,000 nmi (22,000 km; 14,000 mi) at 10 knots (19 km/h; 12 mph) surfaced 64 nmi (119 km; 74 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	230 m (750 ft)
Complement	48 to 56 officers and ratings
Armament	6 × torpedo tubes (4 bow, 2 stern) 22 × 53.3 cm (21 in) torpedoes 1 × 10.5 cm (4.1 in) SK C/32 deck gun (180 rounds) 1 × 3.7 cm (1.5 in) SK C/30 AA gun 1 × twin 2 cm FlaK 30 AA guns
Service record
Part of:	2nd U-boat Flotilla 21 November 1940 – 9 May 1941
Identification codes:	M 23 130
Commanders:	Kptlt. Fritz-Julius Lemp 21 November 1940 – 9 May 1941
Operations:	2 patrols: 1st patrol: 9 – 29 March 1941 2nd patrol: 15 April – 9 May 1941
Victories:	3 merchant ships sunk (10,149 GRT) 2 merchant ships damaged (8,675 GRT)

German submarine U-110 was a Type IXB U-boat of Nazi Germany's Kriegsmarine that operated during World War II. She was captured by the Royal Navy on 9 May 1941 and provided a number of secret cipher documents to the British. U-110's capture, later given the code name "Operation Primrose", was one of the biggest secrets of the war, remaining so for seven months. President Franklin D. Roosevelt was only told of the capture by Winston Churchill in January 1942.