HMS Una

U-class submarine

Service

Royal Navy as HMS Una27 September 1941 — November 19451,436 days of the war

U-class submarine Particulars

Name: HMS Una
Builder: Chatham Dockyard
Laid down: 7 May 1940
Launched: 10 June 1941
Commissioned: 27 September 1941
Decommissioned: November 1945
Fate: Sold to be broken up for scrap, 11 April 1949 (1949)
Status: Scrapped

Specifications

Displacement, surfaced: 540 long tons (549 t)
Displacement, submerged: 730 long tons (742 t)
Length: 58.22 m (191 ft)
Beam: 4.9 m (16.1 ft)
Draught: 4.62 m (15.2 ft)
Speed: 11.3 knots (20.8 km/h, 12.9 mph)
Complement: 27
Main gun: 76 mm (3 in)

HMS Una was a U-class submarine in service with the Royal Navy. Her keel was laid at Chatham Dockyard on 7 May 1940. She entered service on 27 September 1941, having been launched on 10 June 1941.

Her class ran to 53 ships.

The boat displaced 540 long tons surfaced and 730 long tons submerged. She measured 58.2 m (191 ft) long with a beam of 4.9 m (16 ft). Her designed speed was 11.2 knots, and she carried a complement of 27. Her main battery was of 76 mm (3.0 in) calibre.

She was in commission for 1,436 days of the Second World War. She was decommissioned in November 1945.

She was broken up for scrap on 11 April 1949.

Written from the harvested record. Every figure above is sourced; the wording is this site's own.

Armament and machinery

Propulsion: 2 shaft diesel-electric
2 Paxman Ricardo diesel generators + electric motors
615 / 825 hp
Armament: 4 bow internal 21 in torpedo tubes - 8 - 10 torpedoes
1 - 3 in gun

Sister ships

28 more in the class

Sources

Facts harvested from HMS Una on Wikipedia. Figures only — no wording is taken from it.
Photograph: Royal Navy official photographer — This photograph FL 20406 comes from the collections of the Imperial War Museums (collection no. 8308-29) — Public domain — Wikimedia Commons