HMS Revenge (S27) was the fourth of the Royal Navy's ballistic missile submarines.
Construction
The four Resolution-class submarines were ordered on 8 May 1963, with Revenge, the fourth of the class, laid down at Cammell Laird's Birkenhead shipyard on 19 May 1965. Construction of the two submarines being built at Lairds (Revenge and ) was much slower than planned, with poor performance by Cammell Laird and in particular its workers to blame. At one stage the Ministry of Defence considered towing the unfinished submarines to Barrow-in-Furness for completion by Vickers-Armstrongs.