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German Type UC I submarine: Wikis

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SM UC 5 afloat.jpg
Type UC I submarine, SM UC-5
Class overview
Builders: AG Weser, Bremen; Vulkan Hamburg;
Operators:  Kaiserliche Marine
 Royal Netherlands Navy
 Austro-Hungarian Navy
 Regia Marina
Succeeded by: UC II
Built: 1915
In commission: 19151918
Planned: 15
Completed: 15
Lost: 14
Scrapped: 1
Preserved: 0
General characteristics
Type: coastal minelaying submarine
Displacement: 168 tons (surfaced)
183 tons (submerged)
Length: Overall: 111 ft 6 in (33.99 m)
Beam: Overall: 10 ft 4 in (3.15 m)
Draught: 10 ft (3.0 m)
Propulsion: 1 shaft
6 cylinder diesel engines, 90 hp (67 kW)
Siemens-Schuckert electric motor, 175 hp (130 kW)
Speed: Surfaced: 6.2 kn (11.5 km/h; 7.1 mph)
Submerged: 5.2 kn (9.6 km/h; 6.0 mph)
Range: Surfaced: 780 mi (1,260 km) at 5 kn (9.3 km/h; 5.8 mph)
Submerged: 50 mi (80 km) at 4 kn (7.4 km/h; 4.6 mph)
Test depth: 50 m (160 ft)
Complement: 14 men
Armament: 12 mines in 6 x 1m internal tubes

The Type UC I submarines were a class of small coastal minelaying U-boats built in Germany during the early part of World War I. They were the first operational minelaying submarines in the world (although the Russian submarine Krab was laid down earlier). A total of fifteen boats were built. The class is sometimes also referred to as the UC-1 class after SM UC-1, the class leader.

Design

These submarines were designed by Dr. Werner of the Torpedo Inspectorate, and based on the Type UB I small coastal submarines, with a revised bow section housing inclined minelaying tubes and uprated engines to compensate for the increased displacement and less streamlined form. The boats' sole armament was six internal mine tubes with 12 mines, although UC-11 was fitted with a single external torpedo tube in 1916. They were constructed very quickly, and suffered from problems with their minelaying system, which in some cases caused the mines to become armed before exiting their tubes and explode prematurely.

List of Type UC I submarines

A total of 15 Type UC I submarines were built.

  • SM UC-1, struck mine off Nieuport, 19 July 1917
  • SM UC-2, rammed and sunk by coaster Cottingham off Great Yarmouth, 2 July 1915
  • SM UC-3, struck mine off Zeebrugge, 27 May 1916
  • SM UC-4, destroyed at Zeebrugge, 5 October 1918
  • SM UC-5, wrecked in Thames Estuary 27 April 1916
  • SM UC-6, sunk by British seaplanes, Thames Estuary, 27 September 1917
  • SM UC-7, departed Zeebrugge, 3 March 1916, and did not return. Believed to have struck a mine
  • SM UC-8, grounded on Dutch coast, 14 November 1915. Interned by Netherlands and served in Dutch Navy as the M-1 until broken up in 1932 [1]
  • SM UC-9, sunk by detonation of its own mines, North Sea, 21 October 1915
  • SM UC-10, sunk by British submarine E54 21 August 1916, off Dutch coast
  • SM UC-11, struck mine in English Channel, 16 June 1918
  • SM UC-12, sunk by detonation of its own mines, 16 March 1916 near Taranto; salvaged and repaired by Italy as X1 (scrapped 1919)
  • SM UC-13, ran aground and scuttled, Turkish coast, 29 November 1915
  • SM UC-14, struck mine off Zeebrugge, 3 October 1917
  • SM UC-15, failed to return from Black Sea patrol, November 1916

References

  • Fontenoy, Paul E. (2007). Submarines: An Illustrated History of Their Impact. ABC-CLIO. pp. 100–101. ISBN 1851095632.  
  • Messimer, Dwight R. (2002). Verschollen : World War I U-boat losses. Annapolis, Maryland: Naval Institute Press. ISBN 9781557504753. OCLC 231973419.  
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