HMS ''Untiring'' (P59) was a

Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...

U-class

submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...

built by

Vickers-Armstrong Vickers-Armstrongs Limited was a British engineering conglomerate formed by the merger of the assets of Vickers Limited and Sir W G Armstrong Whitworth & Company in 1927. The majority of the company was nationalised in the 1960s and 1970s, w ...

. So far she has been the only ship of the Royal Navy to bear the name ''Untiring''. After the war, she was loaned to the

Greek Navy The Hellenic Navy (HN; , abbreviated ΠΝ) is the naval force of Greece, part of the Hellenic Armed Forces. The modern Greek navy historically hails from the naval forces of various Aegean Islands, which fought in the Greek War of Independence ...

and renamed ''Xifias'' (Y-10).

Wartime career

After a work up patrol off the Norwegian coast, where she sank the Norwegian fishing vessel ''Havbris I'' whilst she was fishing for halibut, ''Untiring'' was assigned to operate in the

Mediterranean The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern ...

. Here, she went on to sink the German netlayer Netztender 44/''Prudente'', the German barge ''F 296'', the German ships ''Jean Suzon/FP 352'' and ''St. Antoine/FP 358'', the German auxiliary minesweeper M 6022/''Enseigne'', the German merchants ''Diana'' and ''Siena'' (the former French ''Astrée''), the German auxiliary submarine chasers UJ 6075 / ''Clairvoyant'' and UJ 6078/''La Havraise'', and also claimed to have sunk a sailing vessel with gunfire. She also unsuccessfully attacked the German submarine ''U-616'', the German auxiliary submarine chaser UJ 6073/''Nimeth Allah'', the German torpedo boat ''TA18'' (the former Italian ''Solferino''), the German merchant ''Burgas'' and an unidentified German auxiliary patrol vessel.

Greek service

''Untiring'' survived the war and was loaned to the

in July 1945, where she was renamed ''Xifias''. She served with the Greek Navy for seven years, and was returned to the Royal Navy in 1952. She was subsequently sunk as an

ASDIC Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects o ...

target on 25 July 1957.

Citations

References

* * * * {{DEFAULTSORT:Untiring (P59) British U-class submarines Ships built on the River Tyne 1943 ships World War II submarines of the United Kingdom British U-class submarines of the Hellenic Navy Ships built by Vickers Armstrong