HMS Algerine and the Algerine-class Minesweepers
HMS Algerine was the lead ship of the Algerine-class minesweepers, a group of warships built for the Royal Navy during World War II. Commissioned in 1942, she served in minesweeping operations in the North Sea before being sent to the Mediterranean to support Operation Torch. On 15 November 1942, while clearing mines off Bougie in North Africa, she was torpedoed by an Italian submarine and sank with heavy loss of life.
Design and Armament of HMS Algerine
The Algerine-class minesweepers were compact warships designed for coastal and inshore work. HMS Algerine displaced 850 long tons at standard load, with an overall length of 225 feet and a beam of 35 feet 6 inches. She was powered by Parsons geared steam turbines driving two shafts, giving her a maximum speed of 16.5 knots, which was adequate for minesweeping operations but modest compared to larger warships.
Her armament reflected the role of a minesweeper rather than a combat vessel. She carried one 4-inch gun as her main weapon, along with four single mounts for 20-millimetre Oerlikon autocannon for defence against aircraft. For anti-submarine work, she was fitted with two depth charge rails and four depth charge throwers. This combination of weapons allowed her to sweep mines while defending herself against air attack and submarine threats, though she was not built to fight larger warships.
Building and Commissioning
HMS Algerine was laid down on 15 March 1941 at the Harland and Wolff shipyard in Belfast and launched on 22 December 1941. She was commissioned on 24 March 1942 and became the eighth Royal Navy ship to bear the name Algerine. Following a Warship Week campaign, the town of Sittingbourne adopted the ship, a common practice in Britain during the war to build public support for the Navy.
Service in Home Waters
After commissioning, HMS Algerine joined the 9th Minesweeping Flotilla in May 1942 and began routine duties on the east side of England. These included minesweeping, escorting merchant convoys, and patrolling operations. She was soon selected to lead the 12th Minesweeping Flotilla, a new formation that would operate overseas. Her sister ships Alarm and Albacore from the 9th Flotilla were assigned to join her, along with Acute and Cadmus.
In October 1942, HMS Algerine was ordered to the Mediterranean to take part in Operation Torch, the Allied invasion of North Africa. Repair work delayed her departure, and the other four ships of her flotilla sailed ahead as convoy escorts to Gibraltar. Four days after they left, HMS Algerine escorted convoy KMF1 to Oran, joining the campaign in North African waters.
The Final Mission
In early November 1942, HMS Algerine assisted in recovering the escort destroyer Cowdray off Algiers after Cowdray had been damaged by an aerial attack. On 15 November, she and her sister ship Alarm were positioned off Bougie to clear mines from the waters. The operation was proceeding well, with 46 mines cleared by the two ships.
That same day, the Italian Adua-class submarine Ascianghi, commanded by Lieutenant Commander Rino Erler, was operating in the area. The submarine fired two torpedoes at the middle ship in the trio of minesweepers, then fired two more at HMS Algerine. The ship was struck and suffered heavy casualties. She sank shortly after the attack, taking 84 men down with her. The auxiliary anti-aircraft ship Pozarica rescued 32 survivors from a Carley raft, but only 8 of them lived, with internal wounds proving fatal for 24 of the rescued men.
Understanding Minesweepers and Their Hazards
Minesweepers like HMS Algerine were among the most dangerous ships to serve on during World War II. A minesweeper is a warship designed to locate and destroy naval mines, typically by towing a cable or magnetic device that triggers or detonates mines in shallow waters. An Adua-class submarine was a type of Italian submarine used during the war, capable of carrying torpedoes and operating in the Mediterranean. A Carley raft was a simple emergency flotation device, essentially a cork-filled ring with netting, used to keep survivors afloat until rescue. Operation Torch was the Allied invasion of French North Africa in November 1942, which required extensive minesweeping to clear passages for transport ships and warships.
Minesweepers were vulnerable to attack because they worked slowly in confined waters where submarines could lie in wait. Their light armament and modest speed made them poor matches for submarines, which could strike from below the surface. The loss of HMS Algerine reflected the constant danger faced by these small warships throughout the war.
Wreck and Legacy
HMS Algerine’s wreck lies at 1,100 feet on the northern coast of Algeria, where she sank on 15 November 1942. The wreck remains a record of the ship’s service and loss during the Mediterranean campaign.
Further Reading
More details about HMS Algerine, the Algerine-class minesweepers, and Operation Torch can be found in Wikipedia and maritime archives. Naval records document the ship’s construction, service history, and the circumstances of her loss.
