German submarine U-1107

Summary

German submarine U-1107 was a Type VIIC/41 U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 20 August 1943 by Nordseewerke, Emden as yard number 229, launched on 30 June 1944 and commissioned on 8 August 1944 under Oberleutnant zur See Fritz Parduhn.

History
Nazi Germany
NameU-1107
Ordered2 April 1942
BuilderNordseewerke, Emden
Yard number229
Laid down20 August 1943
Launched30 June 1944
Commissioned8 August 1944
FateSunk on 30 April 1945
General characteristics
TypeType VIIC/41 submarine
Displacement
Length
Beam
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Draught4.74 m (15 ft 7 in)
Installed power
  • 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion
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
  • 230 m (750 ft)
  • Calculated crush depth: 250–295 m (820–968 ft)
Complement44-52 officers & ratings
Armament
Service record[1]
Part of:
Identification codes: M 26 199
Commanders:
Operations:
  • 1 patrol:
  • 29 March – 30 April 1945
Victories: 2 merchant ships sunk
(15,209 GRT)

Design edit

Like all Type VIIC/41 U-boats, U-1107 had a displacement of 759 tonnes (747 long tons) when at the surface and 860 tonnes (850 long tons) while submerged. She had a total length of 67.23 m (220 ft 7 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), and a draught of 4.74 m (15 ft 7 in).[3] The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke 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) and 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. The boat was capable of operating at a depth of 250 metres (820 ft).[3]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a 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).[3] U-1107 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. Its complement was between forty-four and sixty.[3]

Service history edit

The boat's career began with training at 8th U-boat Flotilla on 8 August 1944, followed by active service on 16 February 1945 as part of the 11th Flotilla for the remainder of her service. In one patrol she sank two merchant ships, for a total of 15,209 gross register tons (GRT).

Fate edit

U-1107 was sunk on 30 April 1945 in the Bay of Biscay west of Brest, in position 48°12′N 05°42′W / 48.200°N 5.700°W / 48.200; -5.700 by a homing torpedo from a US Navy Liberator of VP-103. All hands lost[1]

Previously recorded fate edit

U-1107 was sunk on 30 April 1945 in the Bay of Biscay in position 48°00′N 06°30′W / 48.000°N 6.500°W / 48.000; -6.500, by bombs from US Navy Catalina 'R' of VPB-63, flown by Lt F.G. Lake. The aircraft was flying a MAD Rover patrol, and dropped 24 bombs when the craft was detected.[4] 37 crew were killed with an unknown number of survivors.

Summary of raiding history edit

Date Ship Name Nationality Tonnage
(GRT)
Fate[5]
18 April 1945 Cyrus H. McCormick   United States 7,181 Sunk
18 April 1945 Empire Gold   United Kingdom 8,028 Sunk

See also edit

References edit

  1. ^ a b Helgason, Guðmundur. "The Type VIIC/41 boat U-1107". German U-boats of WWII - uboat.net. Retrieved 16 September 2014.
  2. ^ Helgason, Guðmundur. "Fritz Parduhn". German U-boats of WWII - uboat.net. Retrieved 26 March 2015.
  3. ^ a b c d Gröner 1991, pp. 43–46.
  4. ^ Kemp, Paul (1997). U-Boats Destroyed - German submarine Losses in the World Wars. London: Arms and Armour Press. p. 255.
  5. ^ Helgason, Guðmundur. "Ships hit by U-1107". German U-boats of WWII - uboat.net. Retrieved 16 September 2014.

Bibliography edit

  • 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.
  • Kemp, Paul (1997). U-Boats Destroyed - German submarine losses in the World Wars. Arms and Armour Press. ISBN 1-85409-321-5.
  • Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9.

External links edit

  • "The Type VII/C41 boat U-1107". German U-boats of WWII - uboat.net. Retrieved 6 December 2014.