History
Nazi Germany
Name	U-194
Ordered	4 November 1940
Builder	AG Weser, Bremen
Yard number	1040
Laid down	17 January 1942
Launched	22 September 1942
Commissioned	8 January 1943
Fate	Sunk, 24 June 1943
General characteristics
Class and type	Type IXC/40 submarine
Displacement	1,120 t (1,100 long tons) surfaced 1,232 t (1,213 long tons) submerged
Length	76.76 m (251.8 ft) o/a 58.75 m (192 ft 9 in) pressure hull
Beam	6.90 m (22 ft 8 in) o/a 4.40 m (14 ft 5 in) pressure hull
Height	9.60 m (31 ft 6 in)
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 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 117 nmi (217 km; 135 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	230 m (750 ft)
Complement	4 officers, 44 enlisted48 to 56
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 8 January – 31 May 1943 10th U-boat Flotilla 1 – 24 June 1943
Identification codes:	M 36 350
Commanders:	Kptlt. Hermann Hesse 8 January – 24 June 1943
Operations:	1 patrol: 12 – 24 June 1943
Victories:	None

German submarine U-194 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built during World War II for service in the Atlantic Ocean. Notable for having been fitted with the new Balkon sonar, she was a short-lived vessel, being sunk on her first and only operational war patrol.

Design

German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-194 had a displacement of 1,144 tonnes (1,126 long tons) when at the surface and 1,257 tonnes (1,237 long tons) while submerged.^[1] The U-boat had a total length of 76.76 m (251 ft 10 in), a pressure hull length of 58.75 m (192 ft 9 in), a beam of 6.86 m (22 ft 6 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.67 m (15 ft 4 in). The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of 4,400 metric horsepower (3,240 kW; 4,340 shp) for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1,000 shaft horsepower (1,010 PS; 750 kW) for use while submerged. She had two shafts and two 1.92 m (6 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).^[1]

The submarine had a maximum surface speed of 18.3 knots (33.9 km/h; 21.1 mph) and a maximum submerged speed of 7.3 knots (13.5 km/h; 8.4 mph).^[1] When submerged, the boat could operate for 63 nautical miles (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 13,850 nautical miles (25,650 km; 15,940 mi) at 10 knots (19 km/h; 12 mph). U-194 was fitted with six 53.3 cm (21 in) torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one 10.5 cm (4.13 in) SK C/32 naval gun, 180 rounds, and a 3.7 cm (1.5 in) SK C/30 as well as a 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of forty-eight.^[1]

Service history

U-194 was laid down in Bremen on 17 January 1942 and launched on 22 September. Kapitänleutnant Hermann Hesse took command upon commissioning on 8 January 1943.

Balkon group listening apparatus

The passive sonar, known as Gruppenhorchgerät (group listening apparatus) or GHG, fitted to early U-boats could not be used at periscope depth. To solve this, a new listening device, known as Balkon (balcony) fitted to a second, lower hull, was successfully tested on U-194 in January 1943.^[2]

Loss

Twelve days into her first and only patrol, U-194 was attacked and sunk by a homing torpedo from an American Consolidated PBY Catalina aircraft of VP-84 in position 59°00′N 26°18′W / 59.000°N 26.300°W / 59.000; -26.300. All 54 men aboard were lost. An initial post-war assessment gave credit for sinking U-194 to a British Consolidated B-24 Liberator aircraft of No. 120 Squadron RAF squadron, however this attack actually resulted in the sinking of U-200.