German submarine U-1405

U-1405 was a Type XVIIB U-boat of Nazi Germany's Kriegsmarine during the Second World War. She was one of a small number of U-boats fitted with Hellmuth Walter's high test peroxide propulsion system, which offered a combination of air-independent propulsion and high submerged speeds.[4]

U-1406, a vessel of the same class as U-1405
History
Nazi Germany
Name: U-1405
Ordered: 4 January 1943
Builder: Blohm & Voss, Hamburg
Yard number: 255
Laid down: 15 October 1943
Launched: 1 December 1944
Commissioned: 21 December 1944
Fate: Scuttled on 5 May 1945
Status: Raised and broken up
General characteristics [1][2]
Class and type: Type XVIIB submarine
Displacement:
  • 312 t (307 long tons) (surfaced)
  • 337 t (332 long tons) (submerged)
  • 415 t (408 long tons) (total)
Length:
  • 41.45 m (136 ft) o/a
  • 27.30 m (89 ft 7 in) pressure hull
Beam:
  • 4.50 m (14 ft 9 in) o/a
  • 3.30 m (10 ft 10 in) pressure hull
Draught: 4.30 m (14 ft 1 in)
Installed power:
  • 210 PS (210 shp; 150 kW) (surface diesel drive)
  • 77 PS (76 shp; 57 kW) (submerged electric drive)
  • 2,500 PS (2,500 shp; 1,800 kW) (submerged HTP drive)
Propulsion:
Speed:
  • 8.8 knots (16.3 km/h; 10.1 mph) (surface diesel drive)
  • 5 knots (9.3 km/h; 5.8 mph) (submerged electric drive)
  • 25 knots (46 km/h; 29 mph) (submerged HTP drive)
Range:
  • 3,000 nmi (5,600 km; 3,500 mi) at 8 knots (15 km/h; 9.2 mph) (surface diesel drive)
  • 76 nmi (141 km; 87 mi) at 2 knots (3.7 km/h; 2.3 mph) (submerged electric drive)
  • 123 nmi (228 km; 142 mi) at 25 knots (46 km/h; 29 mph) (submerged HTP drive)
Test depth: 150 m (490 ft)
Capacity:
  • 20.2 t (45,000 lb) (fuel oil)
  • 52 t (115,000 lb) (H
    2    O
    2    )
Complement: 19
Armament:
Service record
Part of:
Commanders:
Operations: No Patrols
Victories: None

The U-1405 was laid down on 15 October 1943 at the Blohm & Voss, Hamburg, as yard number 255. She was launched on 1 December 1944 and commissioned under the command of Oberleutnant zur See Wilhelm Rex on 24 April 1944.[4]

Design

When completed, U-1405 was 41.45 metres (136 ft) long overall, with a beam of 4.50 metres (14 ft 9 in) and a draught of 4.3 metres (14 ft 1 in). She was assessed at 337 long tons (342 t) submerged. The submarine was powered by one Deutz SAA 8M517 supercharged 8-cylinder diesel engine producing a total of 210–230 metric horsepower (150–170 kW; 210–230 shp) for use while surfaced and one Walter gas turbine producing a total of 2,500 metric horsepower (1,800 kW; 2,500 shp) for use while submerged. She had one shaft and one propeller. The submarine had a maximum surface speed of 8.5 knots (15.7 km/h; 9.8 mph) and a maximum submerged speed of 25 knots (46 km/h; 29 mph) using the HTP drive. When submerged, the U-boat could operate for 123 nautical miles (228 km; 142 mi) at 25 knots (46 km/h; 29 mph) on her HTP system and when surfaced, she could travel 3,000 nautical miles (5,600 km; 3,500 mi) at 8 knots (15 km/h; 9.2 mph).[5]

The submarine was fitted with two 53.3 cm (21 in) torpedo tubes (All fitted at the bow) and four torpedoes. The boat had a complement of 19 men.[5]

Service history

U-1405 did not undertake any war patrols and was instead assigned as a training boat at first to the 8th U-boat Flotilla, followed by the 5th U-boat Flotilla.[4]

The U-1405 was scuttled on 5 May 1945 in Eckernförde Bay during Operation Regenbogen. The wreck was later raised and broken up.[4]

gollark: rust good.
gollark: Just pretend to be 12 and really smart and also larger than usual 12 year olds.
gollark: It's like a B level, except it actually exists, which B levels don't because I made them up.
gollark: I'm doing a computer science A level.
gollark: I can sort of do Ancient Greek and Latin, having studied them for threeish years at school for !!USEFUL!! reasons.

References
  1. Helgason, Guðmundur. "The Walter Boats Type XVIIB Small Coastal Research vessels". Uboat.net. Retrieved 14 April 2016.
  2. "German Experimental U-Boats Types III, IV, V, VI, VIII, XI, XII, XIII, XV, XVI, XVII, XVIII, XIX, XX, XXII, VB.60, V.80, U-791 and Deschimag". www.sharkhunters.com. Archived from the original on 24 February 2010. Retrieved 14 April 2016.
  3. Helgason, Guðmundur. "Wilhelm Rex". German U-boats of WWII - uboat.net. Retrieved 14 April 2016.
  4. Helgason, Guðmundur (1995). "U-1405". German U-boats of WWII - uboat.net. Retrieved 13 April 2016.
  5. Hofmann, Markus (24 October 2010). "XVII_B". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 14 April 2016.

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.CS1 maint: ref=harv (link)
  • 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). IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.CS1 maint: ref=harv (link)
  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
  • Helgason, Guðmundur. "U-1405". Uboat.net. Retrieved 14 April 2016.

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