The Loneliest Minesweeper?

Shipsearcher staff share views of the last of the Algerine class minesweepers that served in vital roles in the Second World War: HMS Minstrel / HTMS Phosamton.

Shipsearcher Identification Section (SIS) staff search extensively for satellite views of some of the last survivors of famous classes of warships. During the Second World War, the British Algerine fleet or ocean-going minesweeper design formed an important class of Allied warship. At 225 feet long and about 1,300 tons displacement, they were larger than other designs, such as the Bangor or Bathurst sweepers.

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A tracing of major deck features of the Algerine Minesweeper class, created for recognition purposes.

This new class could be constructed by commercial shipyards – an important feature for speeding up wartime production of the vital hulls. More than half of the 110 ships were built in Canadian shipyards: Port Arthur Shipbuilding, Toronto Shipbuilding, and Redfern Construction. These ships were all powered by reciprocating engines, while some of the British-built ships were turbine-driven. In addition to regular minesweeping duties, ships were quickly pressed into service as ocean escorts, helping to bulk up protection for the vital transatlantic convoys. The dozen Royal Canadian Navy units spent most of their wartime duty in this role, providing important service alongside River class frigates and Flower class corvettes.

A lovely original colour 1943 photograph of HMCS Sault Ste. Marie,  a Canadian-built Algerine, built by the Port Arthur Shipbuilding Co. and similar to the original configuration of HMS Minstrel. Credit: Canada. Department of National Defence / Library and Archives Canada CT-247

HMS Minstrel J-445, was one of the last ships launched from the Toronto, Ontario shipyards of Redfern Construction Company in 1945, as the war ended. Minstrel was transferred to the Royal Thai Navy In 1947 as HTMS Phosamton (or “Phosampton” depending on the source). With most of her sister-ships scrapped in the 1960s, her service stretched on and on into the early 2000s. According to 1980s editions of Jane’s Fighting Ships, she was given an engineering upgrade and modified with a large classroom deckhouse over the quarterdeck, serving as a training vessel.

An Algerine under construction in a Toronto shipyard during 1944, showing the original appearance of the stern and minesweeping gear combined with depth-charge rails. Credit: National Film Board WRM 4986, Library and Archives Canada

Most online sources still call the Phosamton the last active Algerine, serving out of Samut Prakan naval base. However, the Navypedia entry notes it was stricken (removed from service) in 2017, with other sources suggesting it was retired in 2012. A Thai news source had a more accurate updated location that we were able to look up, and images online confirm the location. This minesweeper has been located nearby at Samet Ngam since at least 2013, and shipsearcher staff very much hope that it will be saved from scrapping. However, it has been languishing in a deteriorated condition. More recent views show a large barge moored alongside. As the ship is reported to be resting on the bottom at her berth, the barge may be alongside to commence dismantling the venerable sweeper in situ. Thailand has gone to lengths to preserve other contemporary warships, after their long second careers with the Royal Thai Navy, so there is still hope for this last Algerine.

We don’t often “confirm” ship views, as many ships are pretty obvious, and if we are wrong, very few visitors to our site have ever corrected us! In this case, we sketched out the outline of the satellite view, tracing major features of the ship. We then compared this with online sources and plans in Ken MacPherson’s excellent source book on the topic Minesweepers of the Royal Canadian Navy, 1938-1945, which were themselves made from plans now held by Library and Archives Canada. It is always exciting to identify even a single survivor of a bygone era, lingering on into the present, as this allows us to explore the history of the whole class of vessels, and pester the Shipsearcher staff historian to contextualize or interpret our finds!

This google earth capture has been overlaid with a hand-drawn plan of an Algerine class minesweeper. The outlines of the enlarged classroom on the quarterdeck can be seen in the satellite view extending towards the stern.

Check out our Royal Thai Navy pages for other views of the Phosamton, and other veteran ships, originally from a variety of navies, that are being preserved.

Navies Down Under!

Two new pages explore the past and present surface warships of the Royal Australian Navy (RAN) and the Royal New Zealand Navy (RNZN). For shipsearcher staff, it was particularly challenging to locate imagery of these vessels, as they were all loaded upside down (we hope you enjoyed that truly elevated piece of imagery-related humour)!

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HMAS Vampire D-11 ca. 1959 © Australian War Memorial 301609 https://creativecommons.org/licenses/by-nc/3.0/au/

Some of the more interesting features of these pages include the RNZN 1963 views of Devonport Naval Base, Auckland’s major naval facility. The aerial views make identification of early Cold War and long-service Second World War-built warships possible. As for the RAN, the range of ship classes depicted speaks to a diversified, potent force capable of undertaking a range of missions. As always, we have taken pains to track down long out of service or preserved warships.

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Loch Class frigate and Bathurst Class corvettes, 1963 view of Devonport near Auckland, NZ

These posts complement pages on some of the other Commonwealth navies: Royal Navy and Royal Canadian Navy

Royal Navy Shipsearcher page now up!

“Heart of Oak are our ships, jolly tars are our men, we are always ready; Steady, boys, steady, We’ll fight and we’ll conquer again and again”…so goes the chorus of Heart of Oak, the official march of the Royal Navy, Royal Marines, and several Commonwealth navies [Youtube rendition here]. The oldest ship on this new shipsearcher page – Royal Navy Surface Units – Current and Retired – is the HMS Victory.

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HMS Victory, raising the yards in August 1945 © IWM (A 30810)

This first-rate line of battle ship was being built when Heart of Oak first appeared on the London scene to commemorate the victories of 1759. Our Royal Navy page starts with Victory and spans 260 years to the newly commissioned and largest-ever British carrier, HMS Queen Elizabeth.

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HMS Queen Elizabeth R-08 in Halifax NS, Sep. 2019

Another unique feature of this page is the use of the Kent County Council Archives historical aerial mosaic photos (provided to Google Earth), which allow for Second World War-era captures of ships in Chatham Royal Dockyard. These views make ship identification of famous RN ship classes, such as County Class Cruisers, and aircraft carriers possible. For the first time, we also have a category for monitors, which during the first half of the twentieth century were tubby, short vessels that mounted a few battleship-sized guns! As always, we hope you appreciate the listing, and would be happy to hear about issues with any identification: help us identify our views of unknown ships!HM Monitor Chatham Kent SWW