Military Wiki
HMS Unison (P43)
HMS Unison.jpg
Class and type: U-class submarine
Name: HMS Unison
Builder: Vickers Armstrong, Barrow-in-Furness
Laid down: 30 December 1940
Launched: 5 November 1941
Commissioned: 19 February 1942
Out of service: transferred to Soviet Navy 26 June 1944
Fate: Scrapped May 1950
Name: V-3
Acquired: 26 June 1944
Fate: Returned to Royal Navy in 1949
General characteristics

Surfaced - 540 tons standard, 630 tons full load

Submerged - 730 tons
Length: 58.22 m (191 ft)
Beam: 4.90 m (16 ft 1 in)
Draught: 4.62 m (15 ft 2 in)

2 shaft diesel-electric
2 Paxman Ricardo diesel generators + electric motors

615 / 825 hp

11.25 knots max surfaced

10 knots max submerged
Complement: 27-31

4 bow internal 21 inch torpedo tubes - 8 - 10 torpedoes

1 - 3 inch gun

HMS Unison (P43) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness, and part of the third group of that class. So far she has been the only ship of the Royal Navy to bear the name Unison. Prior to receiving the name, she bore the pennant number P43, and was unofficially known as Ulysses


Unison spent most of her wartime career in the Mediterranean, where she sank the Italian merchant Enrichetta, Maria Foscarini and Terni, the Italian sailing vessels Luigi Verni, Carlo P. and Angela, the German coaster Jaedjoer and the Italian tanker Zeila. She also damaged the Italian tanker Pozarica, and unsuccessfully attacked the Italian merchant Chisone, an unidentified medium-sized tanker, and the Italian light cruisers Raimondo Montecuccoli and Emanuelle Filiberto Duca d’Aosta.

She took part in operations Harpoon and Vigorous. She was later fired on in error by a US tanker, causing damage to her pressure hull, although she was able to return to dock under her own power. The attack killed the Officer of the Watch, and severely injured three other crew members, including her captain, Lt Anthony Daniell DSO DSC*.

She was transferred to the Soviet Navy on 26 June 1944, and renamed V3. She spent five years in Soviet service, being returned in 1949 and scrapped at Stockton in May 1950.

During War Week, March 1942, HMS Unison was adopted by the people of Ashby-de-la-Zouch. Both the Rural District Council and the Urban District Council of Ashby were later presented with plaques commemorating their support for the vessel and her crew. These plaques were recently discovered, reunited and presented to Ashby de la Zouch Museum where they will soon be on display.


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