German submarine U-544

History
Nazi Germany
Name	U-544
Ordered	5 June 1941
Builder	Deutsche Werft, Hamburg
Yard number	365
Laid down	8 July 1942
Launched	17 February 1943
Commissioned	5 May 1943
Fate	Sunk on 16 January 1944
General characteristics
Class & type	Type IXC/40 submarine
Displacement	1,144 t (1,126 long tons) surfaced; 1,257 t (1,237 long tons) submerged;
Length	76.76 m (251 ft 10 in) o/a; 58.75 m (192 ft 9 in) pressure hull;
Beam	6.86 m (22 ft 6 in) o/a; 4.44 m (14 ft 7 in) pressure hull;
Height	9.60 m (31 ft 6 in)
Draught	4.67 m (15 ft 4 in)
Installed power	4,400 PS (3,200 kW; 4,300 bhp) (diesels); 1,000 PS (740 kW; 990 shp) (electric);
Propulsion	2 shafts; 2 × diesel engines; 2 × electric motors;
Speed	18.3 knots (33.9 km/h; 21.1 mph) surfaced; 7.3 knots (13.5 km/h; 8.4 mph) submerged;
Range	13,850 nmi (25,650 km; 15,940 mi) at 10 knots (19 km/h; 12 mph) surfaced; 63 nmi (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	230 m (750 ft)
Complement	4 officers, 44 enlisted
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	4th U-boat Flotilla; 5 May – 31 October 1943; 10th U-boat Flotilla; 1 November 1943 – 16 January 1944;
Identification codes	M 37 886
Commanders	K.Kapt. Willy Mattke; 5 May 1943 – 16 January 1944;
Operations	1 patrol:; 9 November 1943 – 16 January 1944;
Victories	None

German submarine U-544 was a Type IXC U-boat of Nazi Germany's Kriegsmarine during World War II.

She was laid down at the Deutsche Werft (yard) in Hamburg as yard number 365 on 8 July 1942, launched on 17 February 1943 and commissioned on 5 May with Korvettenkapitän Willy Mattke in command.

U-544 began her service career with training as part of the 4th U-boat Flotilla from 5 May 1943. She was reassigned to the 10th flotilla for operations on 1 November.

She carried out one patrol and did not sink any ships. She was a member of five wolfpacks.

She was sunk on 16 January 1944 northwest of the Azores by American aircraft.