U-Class Fleet Destroyer ordered under a War Emergency Programs in April 1911 from Cammell Laird at Birkenhead. The ship was laid down on 8th September 1942 as Build Number 11104 and launched on 19th July 1943 as the 8th RN warship to carry this name introduced in 1794 for a French Prize. It had been last used by a submarine built in 1940 but which had been lost during May 1941. Build was completed on 3rd March 1944. Following a successful WARSHIP WEEK National Savings campaign during March 1942 she had been adopted by the civil community of Barking in Greater London.
CHINA 1900 - DOGGER BANK 1915 - BELGIAN COAST 1916 - NORMANDY 1944 - OKINAWA 1945.
H e r a l d i c D a t a
Badge: On a Field Blue, a falcon White hooded and belled Gold
D e t a i l s o f W a r S e r v i c e
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1 9 4 4
February Contractor's sea trials and commissioning. for service in 25th Destroyer Flotilla
3rd Build completion and commenced Acceptance Trials
On completion of trials and storing took passage to Scapa Flow to work-up for operational
duties with ships of Home Fleet..
April On completion Joined HM Destroyers GRENVILLE, ULSTER, URCHIN, UNDINE, URSA
and URANIA in Flotilla for screening of major Home Fleet units.
3rd Part of screen for HM Battleship ANSON, HM Aircraft Carrier FURIOUS, HM Escort
Carriers SEARCHER, EMPEROR, PURSUER and FENCER, H M Cruisers ROYALIST,
JAMAICA, BELFAST and SHEFFIELD with HM Destroyers MILNE, ONSLAUGHT,
VERULAM, METEOR, SWIFT, VIGILANT, VIRAGO, JAVELIN, WAKEFUL, URSA,
ALGONQUIN (RCN), SIOUX (RCN) and Polish ORP PIORUN during air attacks on German
battleship TIRPITZ in Altenfjord.
(Operation TUNGSTEN - For details see ENGAGE THE ENEMY MORE CLOSELY by C.
Barnett and CONVOY ! by P Kemp).
May Home Fleet screening and patrol duties in continuation.
Nominated with ships of Flotilla for transfer to Force G during allied invasion of Normandy
(For details of naval activities prior to and during landings and of major ships in Force G see
LANDINGS IN NORMANDY June 1944 (HMSO) and OPERATION NEPTUNE by K.
Took part in preliminary exercises with ships of Force G.
June Joined HM Destroyers JERVIS, CATTISTOCK, PYTCHLEY, COTTESMORE and Polish
ORP KRAKOWIAK in Force G with ships of Flotilla
3rd At Spithead in Assembly area.
4th Operation delayed 24 hours.
5th Joined Convoy G10 with
HMS URSA for escort
through swept channel.
(Note: Convoy comprised HM Frigate KINGSMILL (HQ Ship Force G2), four Landing
Ships, Infantry. two Motor Launches and four rescue craft.).
6th After arrival Provided naval gunfire support for landings on GOLD Beach.
7th Escorted HM Cruiser APOLLO taking General Eisenhower and Admiral B. Ramsay, Allied
Naval Commander Expeditionary Force (ANXF) from Portsmouth to beachhead areas.
Embarked General Eisenhower and Admiral Ramsay from HMS APOLLO after the cruiser
had damaged her propellers and took passage to Portsmouth.
8th Deployed in Eastern Task Force Area for gunfire support and defensive patrols to
intercept enemy surface craft and submarines attacking ships off beachhead.
25th After completion of build-up phase retained in Channel.
July Resumed Home Fleet duties at Scapa Flow with Flotilla
August Nominated for service in Pacific with Flotilla.
September Refit and preparation for service with British Pacific Fleet..
November Passage to Trincomalee.
22nd Joined British Pacific Fleet on formation.
December After arrival detached with Flotilla for screening of Eastern Fleet major ships and patrol in Indian
1 9 4 5
January Detached for duty with Eastern Fleet.
4th Part of screen for HM Aircraft Carriers INDOMITABLE, VICTORIOUS and INDEFATIGABLE,
HM Cruisers SUFFOLK, CEYLON, ARGONAUT and BLACK PRINCE with HM Destroyers
UNDINE, GRENVILLE, URANIA, URSA, KEMPENFELT, WHELP and WAGER as
Task Force 63.
(Operation LENTIL - Air attacks on oil refineries at Pangkalan Brandan, Sumatra).
(See Operation Pacific by E Gray, ENGAGE THE ENEMY MORE CLOSELY and WAR WITH
16th Sailed from Ceylon as Task Force 63 (H M Battleship KING GEORGE V, H M Aircraft
Carriers INDOMITABLE, ILLUSTRIOUS, VICTORIOUS and INDEFATIGABLE, HM
Cruisers BLACK PRINCE, ARGONAUT and EURYALUS, HM Destroyers GRENVILLE,
UNDINE, URSA, KEMPENFELT, WAKEFUL, WHIRLWIND, WAGER and WHELP.
(Note: Ships of British Pacific Fleet to join US 5th Fleet at Sydney.
20th Refuelled at sea from Task Force 69.
24th Part of defence for TF63 during air attacks on oil refinery at Pladjoe, North of Palembang,
Sumatra (Operation MERIDIAN I).
26th Refuelled at sea from TF69, prior to Operation MERIDIAN II)
. 28th Part of defence for TF63 during attacks on refinery at Soengi-Gerong, Suratra,
30th Replenished and took passage to Fremantle.
February Transferred with BPF ships to US 5th Fleet and designated Task Force 57 (TF57).
(For details of naval operations by TF57 see TASK FORCE 57 by P Smith, OPERATION
PACIFIC, THE FORGOTTEN FLEET by J Winton, Naval Staff History and WAR WITH
Pennant Number for visual signalling purposes changed to D25 to conform with US Navy
identity for destroyers.
Worked up at Sydney for operations in Central Pacific.
(Note: These included US Navy signal and manoeuvring procedures adopted by RN ships for
use during detached service with US Navy.
March Exercised on passage to Manus.
7th On arrival future deployment undecided by internal US wrangling. See above references
. Waited for decision by US Joint Chiefs of Staff.
. 15th Allocated for service with 5th US Fleet and given new identity -Task Force 57.
18th Sailed for Ulithi as part of screen for ships of Task Force 57-
(Note: TF57 comprised: -
HM Battleships KING GEORGE V and HOWE, HM Aircraft Carriers
INDOMITABLE, VICTORIOUS, ILLUSTRIOUS, INDEFATIGABLE, HM
Cruisers SWIFTSURE, GAMBIA (RNZN), BLACK PRINCE, ARGONAUT,
EURYALUS, HM Destroyers GRENVILLE, ULSTER, URANIA, UNDINE,
QUICKMATCH, QUIBERON, QUEENBOROUGH, KEMPENFELT,
WHIRLWIND and WAGER.
20th Joined 5th US Fleet at Ulithi.
23rd Sailed from Ulithi with TF57 to operational area off Sakishima Gunto.
26th Part of screen during air attacks on airfields in Sakishima Gunto Group.
(Note: Provision in support during Okinawa landings Operation ICEBERG ONE)
April Screening duties with TF57 in continuation.
21st Took passage to Leyte with TF57 on completion of 6th strike period.
23rd Arrived at Layte for repair and replenishment.
Future deployment of TF57 under consideration
27th Proposal to transfer BPF to SW Pacific area cancelled. BPF to remain with 5th Fleet as Task
1st Took passage to operational area from Leyte with TF57 for continuation of attacks on
Sakishima Gunto Group (Operation ICEBERG TWO).
(Note: Other ships in Task Force 57 were:
HM Battleships KING GEORGE V, HOWE, HM Aircraft Carriers
INDOMITABLE, INDEFATIGABLE, FORMIDABLE, VICTORIOUS, HM
Cruisers SWIFTSURE, UGANDA (RCN), GAMBIA (RNZN), EURYALUS and
BLACK PRINCE with HM Destroyers GRENVILLE, URSA, URCHIN,
UNDINE ,URANIA, QUILLIAM , QUIBERON, QUICKMATCH,
QUEENBOROUGH, QUALITY, KEMPENFELT, WHIRLWIND and WESSEX.
4th After arrival in area detached with ships of 25th Destroyer Flotilla to screen HMS KING
GEORGE V, HMS HOWE, HMS SWIFTSURE, HMS BLACK PRINCE, HMS
EURYALUS, HMS GAMBIA and HMS UGANDA during bombardment of airfields on
(Note: During this bombardment the aircraft carriers of TF57 came under sustained attack
by bombing including KAMIKAZE aircraft.)
Bombardment curtailed and force returned to rejoin aircraft carriers).
5th Deployment with screen for Task Force in continuation
to (For details see above references and Naval Staff History).
26th Passage to Sydney BPF ships via Manus.
(Note: HMS KING GEORGE V with HMS TROUBRIDGE, HMS TENACIOUS and
HMS TERMAGANT were detached for passage to Guam).
5th Arrived at Sydney for rest and recuperation period.
(Note: Ships of BPF were transferred to US 3rd Fleet during this period owing to a
re-organisation of US Navy command structure in Pacific and were re-designated
Task Force 37).
28th Sailed with Task Force 37 from Sydney for Manus.
(Note: Task Force 37 comprised:
HM Battleship KING GEORGE V, HM Aircraft Carriers FORMIDABLE,
VICTORIOUS, IMPLACABLE, HM Cruisers NEWFOUNDLAND, ACHILLES
(RNZN), UGANDA (RCN), EURYALUS, GAMBIA (RNZN) and BLACK PRINCE
with HM Destroyers QUIBERON, QUADRANT, QUALITY., QUICKMATCH,
TROUBRIDGE, TENACIOUS, TERMAGANT, TEAZER, TERPSICHORE,
GRENVILLE, UNDINE, URANIA, URCHIN. UNDINE and ULYSSES.
4th Arrived at Manus with BPF.
6th Sailed for operational area with TF37.
(Note: HMS IMPLACABLE detached because of machinery defect and joined later)
Transferred to US 3rd Fleet and BPF ships redesignated as part of Task Force 37.
Passage to Japan with TF37 for joint RN and USN operations.
17th Deployed with HM Destroyers QUIBERON, QUICKMATCH, QUALITY, QUADRANT,
TROUBRIDGE, TENACIOUS, TERMAGANT, TEAZER, TERPSICHORE, GRENVILLE,
UNDINE, URANIA, URCHIN and ULYSSES to screen H M Battleship KING GEORGE V,
HM Aircraft Carriers FORMIDABLE, VICTORIOUS and HMS IMPLACABLE, HM Cruisers
NEWFOUNDLAND, ACHILLES (RNZN), UGANDA (RCN), EURYALUS, GAMBIA
(RNZN) and BLACK PRINCE. TF37 during joint attacks with US TF38 on targets in Tokyo
and Yokohama areas.
18th Bombarded targets in South Honshu with TF37.
In action against surface suicide craft.
August Deployed in operational area with TF37-
9th Part of screen TF37 ships during combined air attacks and surface bombardment of
targets in North Honshu and Hokkaido with US Task Groups.
12th Escorted ships of TF37 to Manus after reduction of British element due to lack of fuel from
British sources (See above references).
P o s t W a r N o t e s
HMS UNDAUNTED returned to UK after VJ Day and was reduced to Reserve at Devonport. She was laid up initially at Milford Haven but returned to Devonport in 1947. After conversion to Anti-Submarine Frigate in 1954 she re-commissioned and remained in service until 1973 when placed on the Disposal List. This destroyer was then used as a Target for submarine torpedo trials and sunk by HM Submarine SWIFTSURE in November 1958.
No Convoy Escort Movements Reported