HMS Porlock Bay ( K650 ) HMS " Porlock Bay " ( K650 / F650 ) was a Bay - class anti - aircraft frigate of the British Royal Navy , named for Porlock Bay on the northern coast of Somerset . Commissioned in 1946 , she served on the American and West Indies Station and as a Fisheries Protection Vessel before being put into reserve in 1949 . She was sold to Finland in 1962 and served as the training ship Matti Kurki until 1974 . Construction . The ship was ordered in 1944 from Charles Hill & Sons at Bristol in place of a " Loch Seaforth " which had been cancelled on 27 November 1943 . The ship was laid down on 22 November 1944 as Admiralty Job No . 602 ( Yard No . 302 ) . She was launched on 14 June 1945 and completed on 8 February 1946 . She was the last warship to be built by this shipyard . Service history . HMS " Porlock Bay " . After sea trials " Porlock Bay " was commissioned on 14 February 1946 for service in the America and West Indies Station under the command of Lieutenant Dudley L . Davenport . After training she was attached to the Plymouth Local Flotilla and finally sailed for Bermuda with on 22 July . On arrival a minor collision meant that she did not participate with the Squadron in the Autumn Programme of visits to U . S . ports . Once repaired she took part in visits to Newfoundland and Canada , arriving at St John ' s on 7 September for the National Convention on the political future of the Colony , and took the Governor , Sir Gordon Macdonald on an official tour of isolated settlements on south coast . After visits on the northern coast , she then visited mainland ports , arriving at Quebec on 15 October . In early November she took part in joint exercises with ships of the Royal Canadian Navy at Halifax before returning to Bermuda to refit at the Royal Dockyard . In December , while under refit , Commander Frank J . Twiss assumed command , and in January 1947 the ship took part in exercises with the Squadron before making visits to Veracruz , Mexico and Kingston , Jamaica , then Galveston , Texas , Mobile , Alabama , and Key West , Florida before returning to Bermuda in April . In July she took part in a programme of official visits by the Governor of the Bahamas to the Turks and Caicos Islands , but on the 21st was despatched to Belize City in British Honduras after Guatemalan threats to the colony , remaining there until early August . On 12 September the termination of her commission announced as part of a programme of cuts in naval spending . On 16 October she left Bermuda for the UK , arriving at Devonport on 3 November . " Porlock Bay " spent the year 1948 as part of the Fishery Protection Squadron in home waters , and was put into reserve at Devonport in January 1949 . In February her pennant number was changed to F650 . She remained in Reserve until 1962 , during which she was refitted twice . " Matti Kurki " . On 19 March 1962 she was sold to the Finnish Navy as the training ship Matti Kurki , named for the Finnish medieval military hero Matti Kurki ( Mats Kurck ) . " Matti Kurki " made seven global circumnavigations . It is estimated some 1 , 500 Finnish cadets and conscripts served onboard her during her service in the Finnish Navy . She was permanently anchored at Upinniemi after being decommissioned in 1974 . She was scrapped in Helsinki , Finland , in 1975 .