as Ulster Class destroyer, HMS Undaunted. Yard No. V.1104
1943-jul-9
Launched
Cammell Laird launched at Birkenhead as Ulster class destroyer
1944
Commissioned
as Ulster Class, pennant R53.
1946-jan
Refit
HMNZD DevonportRefit completed refit and departed Auckland, NZ and returned to Devonport, UK after war service with the British Pacific Fleet, on 19 Mar 1946.
1952
Refit
until 1954 into Type 15 fast anti-submarine frigate, by JS White and assigned pennant F53
1958
Refit
Fitted with raised flight deck aft for P.531 trials
1958-dec-24
Deployment
In collision with HMS Maxton, whilst patrolling off Cyprus
1959-nov-9
Trials
Portland Heliport P.531 trials commenced with XN333 and XN334 during Nov, including some tactical trials with HM Submarine Tireless
1960-aug
Deployment
HMD DevonportNavy Days 1960Ship open to visitors at Plymouth Navy Days 1960.
1962
Refit
original (1958) flight deck updated to become more permanent with lessons learned from P.531 and Wasp trials.
HMNZD Devonport Refit completed refit and departed Auckland, NZ and returned to Devonport, UK after war service with the British Pacific Fleet, on 19 Mar 1946.
Cammell Laird, 
