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HMS Unity (N66)

Coordinates: 55°13′N 1°19′W / 55.217°N 1.317°W / 55.217; -1.317
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HMS Unity
History
United Kingdom
NameHMS Unity
BuilderVickers Armstrong, Barrow-in-Furness
Laid down19 February 1937
Launched16 February 1938
Commissioned5 October 1938
FateSunk 29 April 1940 in accidental collision
Badge
General characteristics
Class and typeU-class submarine
Displacement
  • Surfaced – 540 tons standard, 630 tons full load
  • Submerged – 730 tons
Length58.22 m (191 ft 0 in)
Beam4.90 m (16 ft 1 in)
Draught4.62 m (15 ft 2 in)
Propulsion
  • 2 shaft diesel-electric
  • 2 Paxman Ricardo diesel generators + electric motors
  • 615 hp (459 kW) / 825 hp (615 kW)
Speed
  • 11.25 kn (20.84 km/h; 12.95 mph) max surfaced
  • 10 kn (19 km/h; 12 mph) max submerged
Complement27
Armament

HMS Unity was a U-class submarine, of the first group of that class constructed for the Royal Navy. The submarine entered service in 1938 and performed war patrols during the Second World War. On 29 April 1940, Unity was accidentally rammed and sunk in Blyth, Northumberland's harbour.

Construction and career

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Unity was built by Vickers Armstrong, Barrow-in-Furness. She was laid down on 19 February 1937 and was commissioned on 5 October 1938.

At the onset of the Second World War, Unity was a member of the 6th Submarine Flotilla. From 26–29 August 1939, the flotilla deployed to its war bases at Dundee and Blyth.[1] She served in home waters in the North Sea, making a failed attack on the German submarine U-2.[2]

She rescued the survivors of Dutch fishing vessel Protinus on 25 March 1940.[3]

On the 11th of April 1940, at AN3446, Unity was spotted by U-5, a German Type IIa coastal submarine commanded by Kapitänleutnant Lehmann. U-5 fired a G7a (T1) steam powered torpedo at the Unity, which subsequently saw the bubble trail and proceeded to crash dive in heavy seas. U-5 followed suit in an attempt at an underwater shot with a G7e (T2) electric torpedo. However contact was lost and Unity managed to escape unharmed. [4]

Sinking

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Unity sailed from Blyth on 29 April 1940 to patrol off Norway, where she collided with the Norwegian ship Atle Jarl, sinking five minutes later.[5] Two members of her crew, Lieutenant John Low and able Seaman Henry Miller, gave their lives by remaining behind in the flooded control room so that their shipmates could escape from the sinking vessel.[6]

Wreck

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The wreck is accessible by technical divers, lying at a depth between 48 and 55 metres (157 and 180 ft)[7] off the Farne Islands.[8]

References

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  1. ^ Rohwer, p.1
  2. ^ "HMS Unity (N 66)". uboat.net. Retrieved 9 April 2016.
  3. ^ "Naval Events, March 1940, Part 1 of 2, Friday 1st – Thursday 14th". Naval History. Retrieved 17 May 2021.
  4. ^ https://www.uboatarchive.net/U-5/KTB5-2.htm
  5. ^ "Submarine losses 1904 to present day". RN Submarine Museum, Gosport. Archived from the original on 8 August 2007.
  6. ^ Gray, p.180
  7. ^ "HMS Unity". 30 July 2010. Retrieved 16 September 2020.
  8. ^ "Diary of the War: April 1940". 29 April 2020. Retrieved 16 September 2020.

Sources

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55°13′N 1°19′W / 55.217°N 1.317°W / 55.217; -1.317