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German submarine U-549

Summary

German submarine U-549 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 28 September 1942 at the Deutsche Werft yard in Hamburg, launched on 28 April 1943, and commissioned on 14 July 1943 under the command of Kapitänleutnant Detlev Krankenhagen. After training with the 4th U-boat Flotilla at Stettin, the U-boat was transferred to the 10th U-boat Flotilla for front-line service on 1 January 1944.[2]

History
Nazi Germany
NameU-549
Ordered5 June 1941
BuilderDeutsche Werft, Hamburg
Yard number370
Laid down28 September 1942
Launched28 April 1943
Commissioned14 July 1943
FateSunk on 29 May 1944[1]
General characteristics
Class and typeType IXC/40 submarine
Displacement
  • 1,144 t (1,126 long tons) surfaced
  • 1,257 t (1,237 long tons) submerged
Length
Beam
  • 6.86 m (22 ft 6 in) o/a
  • 4.44 m (14 ft 7 in) pressure hull
Height9.60 m (31 ft 6 in)
Draught4.67 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
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 depth230 m (750 ft)
Complement4 officers, 44 enlisted
Armament
Service record[2][3]
Part of:
Identification codes: M 53 434
Commanders:
  • Kptlt. Detlev Krankenhagen
  • 14 July 1943 – 29 May 1944
Operations:
  • 2 patrols:
  • 1st patrol:
  • 11 January – 26 March 1944
  • 2nd patrol:
  • 14 – 29 May 1944
Victories:
  • 1 warship sunk
    (9,393 tons)
  • 1 warship damaged
    (1,300 tons)

Design edit

German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-549 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.[4] 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).[4]

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).[4] 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-549 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.[4]

Service history edit

First patrol edit

U-549 departed Kiel on 11 January 1944, and sailed out into the mid-Atlantic, via the gap between Iceland and the Faroe Islands, but had no success. The U-boat arrived at Lorient in occupied France on 26 March after 76 days at sea.[5]

Second patrol and loss edit

The U-boat left Lorient on 14 May 1944 and sailed to the waters north-west of the Canary Islands.[6] At 20:13 on 29 May 1944, U-549 slipped through the anti-submarine screen of the hunter-killer group TG 21.11, and fired three T-3 torpedoes at the escort carrier USS Block Island, hitting her with two, and severely damaging the ship which later sank.[7] At 20.40 hours the U-boat fired a salvo of T-5 acoustic torpedoes, badly damaging the destroyer escort Barr (DE-576), and missing the Eugene E. Elmore (DE-686).[8] A counter-attack with depth charges was launched by Ahrens (DE-575) and Eugene E. Elmore which sank the U-boat, in position 31°13′N 23°03′W / 31.217°N 23.050°W / 31.217; -23.050. All 57 hands were lost.[2]

Wolfpacks edit

U-549 took part in three wolfpacks, namely:

  • Igel 1 (3 – 17 February 1944)
  • Hai 1 (17 – 22 February 1944)
  • Preussen (22 February – 22 March 1944)

Summary of raiding history edit

Date Ship Name Nationality Tonnage[Note 1] Fate[9]
29 May 1944 USS Barr   United States Navy 1,300 Damaged
29 May 1944 USS Block Island   United States Navy 9,393 Sunk

References edit

Notes edit

  1. ^ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

Citations edit

  1. ^ Kemp 1999, p. 192.
  2. ^ a b c Helgason, Guðmundur. "The Type IXC/40 boat U-549 - German U-boats of WWII - uboat.net". German U-boats of WWII - uboat.net. Retrieved 1 March 2010.
  3. ^ Helgason, Guðmundur. "War Patrols by German U-boat U-549 - Boats - uboat.net". German U-boats of WWII - uboat.net. Retrieved 1 March 2010.
  4. ^ a b c d Gröner 1991, p. 68.
  5. ^ Helgason, Guðmundur. "Patrol of U-boat U-549 from 11 Jan 1944 to 26 Mar 1944 - U-boat patrols - uboat.net". German U-boats of WWII - uboat.net. Retrieved 1 March 2010.
  6. ^ Helgason, Guðmundur. "Patrol of U-boat U-549 from 14 May 1944 to 29 May 1944 - U-boat patrols - uboat.net". German U-boats of WWII - uboat.net. Retrieved 1 March 2010.
  7. ^ Helgason, Guðmundur. "USS Block Island (CVE 21) (Escort carrier) - Ships hit by U-boats - uboat.net". German U-boats of WWII - uboat.net. Retrieved 1 March 2010.
  8. ^ Helgason, Guðmundur. "USS Barr (DE 576) (Destroyer escort) - Ships hit by U-boats - uboat.net". German U-boats of WWII - uboat.net. Retrieved 1 March 2010.
  9. ^ Helgason, Guðmundur. "Ships hit by U-549". German U-boats of WWII - uboat.net. Retrieved 30 January 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). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
  • Kemp, Paul (1999). U-Boats Destroyed - German Submarine Losses in the World Wars. London: Arms & Armour. ISBN 1-85409-515-3.

External links edit

  • Helgason, Guðmundur. "The Type IXC/40 boat U-549". German U-boats of WWII - uboat.net. Retrieved 7 December 2014.
  • Hofmann, Markus. "U 549". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 7 December 2014.

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