Military Wiki
HMS Unsparing (P55)
Class and type: U-class submarine
Name: HMS Unsparing
Builder: Vickers Armstrong, Newcastle upon Tyne
Laid down: 11 August 1941
Launched: 28 July 1942
Commissioned: 29 November 1942
Fate: scrapped 1946
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 (20.8 km/h) max surfaced

10 knots (19 km/h) max submerged
Complement: 27-31

4 bow internal 21-inch (533 mm) torpedo tubes - 8 - 10 torpedoes

1 - 3-inch (76 mm) gun

HMS Unsparing (P55) was a Royal Navy U-class submarine built by Vickers-Armstrong. So far she has been the only ship of the Royal Navy to bear the name Unsparing.


Unsparing spent most of her wartime career in the Mediterranean, where she sank the Italian tanker Flegetonte, the German merchant Ingeborg (the former French Ste. Martine), the German submarine chaser UJ 2106 (the former Greek minelayer Tenedos), the German barge Sybille (the former French Caisson) and the German ferry SF 284, as well as six sailing vessels, including the Greek Evangelistria. She also torpedoed and damaged the German merchant Peter, as well as a number of sailing vessels. Unsparing survived the war and was scrapped at Inverkeithing in 1946.


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