HMS Duncan (F80): The Cod War Frigate Given the Freedom of Hull

Built by Thornycroft

HMS Duncan was built by John I. Thornycroft and Company, her keel laid on 17 December 1953 and launched on 30 May 1957, a Blackwood-class Type 14 anti-submarine frigate acquired by the Royal Navy in October 1958 and commissioned on 21 October that year, a specialised design built primarily around anti-submarine warfare rather than general-purpose duties.

Leading the Fishery Protection Squadron

HMS Duncan served as leader of the Fishery Protection Squadron from 1958 to 1965, and in that role took part in the First Cod War against Iceland, the earliest of the three postwar disputes between Britain and Iceland over fishing rights, protecting British trawlers operating in contested waters from Icelandic gunboats.

Her contribution to defending the interests of British trawlermen during this dispute was formally recognised when she received the Freedom of the City of Hull, a notably significant civic honour reflecting just how closely the fortunes of Hull's fishing fleet were tied to the Royal Navy vessels sent to protect them.

In 1964, HMS Duncan fired ceremonial guns to mark the opening of the Forth Road Bridge, a rather more festive duty than her usual fishery protection work.

A Training Ship for Anti-Submarine Warfare

Following a 1966 refit and modernisation at Rosyth Naval Dockyard, HMS Duncan transitioned to anti-submarine training duties, serving first with the Londonderry Squadron and then, from 1969, with the Portland Training Squadron, work focused on preparing sailors for the specialised demands of submarine detection and prosecution rather than front-line operational service. She paid off from this training role on 2 April 1971.

A Final Chapter at Rosyth

During the early 1980s, HMS Duncan served at Rosyth Dockyard as a harbour training ship for marine engineering apprentices, a quiet but remarkably useful final chapter for a ship whose earlier career had put her at the centre of a properly significant national dispute over fishing rights.

She was decommissioned in 1984 and broken up in February 1985, closing out more than a quarter century of service that had carried her from Cod War confrontations off Iceland to training the next generation of Royal Navy engineers back home in Scotland.