UK Type 15 class




2850full load (tn)
110.50length (m)
10.90beam (m)
4.40draught (m)
36max speed (knots)

2Naval Engine steam turbines

2Naval Gun single 40 mm

helicopter   Aircraft

Typical Max
Landing platform only. No hangar
UK Royal Navy Saunders R Saro P.531 01
UK Royal Navy Westland Wasp 01


UK Cammell Laird - 1
UK Swan Hunter (Wallsend) - Wallsend1

  List of Ships

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19431981UKRoyal NavyF197HMS GrenvilleGGCT
19441974 sunk 1978UKRoyal NavyF53HMS Undaunted GGWR - UD

2 units


1941-nov-01Laid downLaid down UK F197 HMS Grenville Yard No. 1669
1942-sep-08Laid downLaid down UK F53 HMS Undaunted as Ulster Class destroyer, HMS Undaunted. Yard No. V.1104
1942-oct-12LaunchedLaunched UK F197 HMS Grenville from SW Wallsend Yard.
1943-may-27CommissionedCommissioned UK F197 HMS Grenville as Rapid class HMS Grenville (R97)
1943-jul-09LaunchedLaunched UK F53 HMS Undaunted launched at Birkenhead as Ulster class destroyer
1944CommissionedCommissioned UK F53 HMS Undaunted as Ulster Class, pennant R53.
1946-janRefitRefit UK F53 HMS Undaunted completed refit and departed Auckland, NZ and returned to Devonport, UK after war service with the British Pacific Fleet, on 19 Mar 1946.
1952RefitRefit UK F53 HMS Undaunted until 1954 into Type 15 fast anti-submarine frigate, by JS White and assigned pennant F53
1953RefitRefit UK F197 HMS Grenville until 1954, conversion at HMD Chatham from a Rapid class frigate (R97) to Type 15 standard
1957-febTrialsTrials UK F197 HMS Grenville fitted with flight deck aft for later use in English Channel with Fairey Ultra Light G-AOUJ
1958RefitRefit UK F53 HMS Undaunted Fitted with raised flight deck aft for P.531 trials
1958-oct-23 UK F197 HMS Grenville minor damage during collision in Portland Harbour
1958-dec-24DeploymentDeployment UK F53 HMS Undaunted In collision with HMS Maxton, whilst patrolling off Cyprus
1959-nov-09TrialsTrials UK F53 HMS Undaunted P.531 trials commenced with XN333 and XN334 during Nov, including some tactical trials with HM Submarine Tireless
1960-augDeploymentDeployment UK F53 HMS Undaunted Ship open to visitors at Plymouth Navy Days 1960.
1962RefitRefit UK F53 HMS Undaunted original (1958) flight deck updated to become more permanent with lessons learned from P.531 and Wasp trials.
1966RefitRefit UK F53 HMS Undaunted emerged from refit at HMD Chatham
1967 UK F197 HMS Grenville far east cruise in 1967-69. After a fire on HMS Agincourt many of the crew were transferred to Grenville. After work up she did a Mediterranean cruise then joined the second destroyer squadron Far East fleet [Cdr George Brewer]. When she returned to Portsmouth the lattice mast was removed and she painted her black 2 red anhd joined the 2nd Frigate squadron as a radar trials ship
1967-marAircraftAircraft UK F53 HMS Undaunted working up for Wasp operations, temporarily with 829 Sq Wasp HAS.1 XS571/476-LE from HMS Leander
1969-dec-09AircraftAircraft UK F53 HMS Undaunted Londonderry Flt Wasp XV637/447-LD ditched S of St Albans Head while operating from HMS Undaunted, 9 Dec 1969
1974DecommissionedDecommissioned UK F53 HMS Undaunted
1974-aprDecommissionedDecommissioned UK F197 HMS Grenville
1978-novFate: sunkFate: sunk UK F53 HMS Undaunted sunk as a target off Casablanca, by Exocet from HMS Norfolk or some authorities claim by torpedo from HMS Swiftsure.
1983Fate: scrappedFate: scrapped UK F197 HMS Grenville towed from Devonport to Portsmouth late 1979, then on to Isle of Sheppey for scrapping.
2012-aug-18 UK F53 HMS Undaunted Ship s Bell (1966) still in safe keeping at Sea Cadet unit TS Jersey on Jersey, CI

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