German submarine U-1104

	U-995 Type VIIC/41 at the Laboe Naval Memorial. This U-boat is almost identical to U-1104.
History
Nazi Germany
Name	U-1104
Ordered	14 October 1941
Builder	Nordseewerke, Emden
Yard number	226
Laid down	29 June 1943
Launched	7 December 1943
Commissioned	15 March 1944
Fate	Surrendered on 9 May 1945; Sunk on 1 December 1945 during Operation Deadlight;
General characteristics
Type	Type VIIC/41 submarine
Displacement	757 long tons (769 t) surfaced; 857 long tons (871 t) submerged;
Length	67.10 m (220 ft 2 in) o/a; 50.50 m (165 ft 8 in) pressure hull;
Beam	6.20 m (20 ft 4 in) o/a; 4.70 m (15 ft 5 in) pressure hull;
Height	9.60 m (31 ft 6 in)
Draught	4.74 m (15 ft 7 in)
Installed power	2 × diesel engines; 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels); 750 PS (550 kW; 740 shp) (electric);
Propulsion	2 × electric motors; 2 × screws;
Speed	17.7 knots (32.8 km/h; 20.4 mph) surfaced; 7.6 knots (14.1 km/h; 8.7 mph) submerged;
Range	8,500 nmi (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph) surfaced; 80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	250 m (820 ft); Calculated crush depth: 250–295 m (820–968 ft);
Complement	44-52 officers & ratings
Armament	5 × 53.3 cm (21 in) torpedo tubes (4 bow, 1 stern); 14 × torpedoes or; 26 × TMA or TMB Naval mines; 1 × 8.8 cm (3.46 in) deck gun (220 rounds); 1 × 3.7 cm (1.5 in) Flak M42 AA gun; 2 × 2 cm (0.79 in) C/30 AA guns;
Service record
Part of:	8th U-boat Flotilla; 15 March 1944 – 31 January 1945; 11th U-boat Flotilla; 1 February – 8 May 1945;
Identification codes:	M 49 678
Commanders:	Oblt.z.S. Rüdiger Perleberg; 15 March 1944 – 9 May 1945;
Operations:	1 patrol:; 1 February – 22 March 1945;
Victories:	None

German submarine U-1104 was a Type VIIC/41 U-boat of Nazi Germany's Kriegsmarine during World War II.

She was ordered on 14 October 1941, and was laid down on 29 June 1943, at Nordseewerke, Emden, as yard number 226. She was launched on 7 December 1943, and commissioned under the command of Oberleutnant zur See Rüdiger Perleberg on 15 March 1944.^[2]

Design

German Type VIIC/41 submarines were preceded by the heavier Type VIIC submarines. U-1104 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), an overall beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two SSW GU 343/38-8 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).^[3]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-1104 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA or TMB Naval mines, one 8.8 cm (3.46 in) SK C/35 naval gun, (220 rounds), one 3.7 cm (1.5 in) Flak M42 and two 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and fifty-two.^[3]

Service history

On 9 May 1945, U-1104 surrendered at Bergen, Norway and was later transferred to Loch Ryan, Scotland on 30 May 1945. Of the 156 U-boats that eventually surrendered to the Allied forces at the end of the war, U-1104 was one of 116 selected to take part in Operation Deadlight. U-1104 was towed out and sank on 1 December 1945 by naval gunfire.^[2]

The wreck now lies at 56°10′N 10°05′W / 56.167°N 10.083°W / 56.167; -10.083.^[2]

References

^ Helgason, Guðmundur. "Rüdiger Perleberg". German U-boats of WWII - uboat.net. Retrieved 24 March 2016.
^ ^a ^b ^c Helgason, Guðmundur. "U-1104". German U-boats of WWII - uboat.net. Retrieved 24 March 2016.
^ ^a ^b Gröner 1991, pp. 43–44.

Bibliography

Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). German Warships 1815–1945, U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.