HMS Portsdown (T221): The Fishing Boat Called Up to Hunt Submarines Off Africa

A Trawler Design Turned Warship

HMS Portsdown was one of the Hill-class Admiralty trawlers, a wartime design adapted from Barnett, a perfectly ordinary commercial fishing trawler built in 1937, and turned into a serviceable anti-submarine escort simply by adding guns, depth charges and a naval crew. It was a typically pragmatic piece of wartime improvisation: rather than tie up scarce warship-building capacity on small escorts, the Admiralty ordered eight of these adapted trawlers from Cook, Welton and Gemmell of Beverley in 1940, giving each one a 12-pounder gun, three 20mm Oerlikon cannon and fifty-five depth charges, a genuinely useful anti-submarine punch for a ship that had started life as a design for catching fish rather than U-boats.

Built and Commissioned Within a Year

Portsdown herself was ordered in January 1941, laid down that May, launched in September, and commissioned on 4 March 1942, a brisk construction schedule that reflected just how urgently the Battle of the Atlantic demanded more escorts of every size and type. Command passed through three wartime officers, Lieutenant Edward Donkin, Lieutenant Leonard Bradley and Lieutenant Kenneth Forth, over the course of her service.

Guarding the Freetown Convoys

Portsdown's war was fought a long way from the cold grey Atlantic most people picture when they think of convoy escort duty. She was based around Freetown in Sierra Leone, a critical assembly point for convoys running along the West African coast and out into the wider Atlantic, and spent 1943 conducting anti-submarine exercises and escort work in the area. In March 1944 she escorted convoy SL 152 out of Freetown, though on that occasion she broke off from the convoy to conduct a submarine search before returning to port rather than completing the full passage, the kind of routine but genuinely important precautionary work that rarely gets written up in the history books but which kept the West African convoy routes as safe as they were.

Back to the Fishing Grounds

When the war ended, Portsdown's story took the most natural course imaginable for a ship built on a fishing trawler's hull: she went back to fishing. Sold in April 1946 to Hull Merchants Amalgamated Trawlers, she returned to commercial service, changing hands again in 1949 and 1955 under different owners and, in the way of the trawler trade, quite possibly different names as she passed between fishing companies looking for a solid, war-surplus hull at a reasonable price.

A Long Working Life, Ending in Ireland

Her working life, first as a warship and then as a commercial trawler, finally came to an end when she was sold for scrap to Haulbowline Industries in Ireland in 1964 and broken up that December, more than two decades after she had first been laid down for war service. It was a fittingly unglamorous conclusion for a ship whose entire career, in and out of uniform, had been defined by hard, practical, unglamorous work.

The Quiet Backbone of the Convoy War

Ships like HMS Portsdown rarely get remembered alongside the destroyers and cruisers that fought the Atlantic war's more dramatic engagements, but the Hill-class trawlers and their many cousins did an enormous amount of the unglamorous legwork, patrolling, escorting and searching, that kept convoys like those running out of Freetown moving safely. Portsdown's own war, and her long peacetime return to the fishing trade she had originally been designed for, is as good a summary of that quiet, essential contribution as any single ship's history could offer.