A submarine chaser or subchaser is a type of small naval vessel that is specifically intended for anti-submarine warfare. They encompass designs that are now largely obsolete, but which played an important role in the wars of the first half of the 20th century. Many of the American submarine chasers used in World War I found their way to Allied nations by way of Lend-Lease in World War II.
HMS Thrasher was a "thirty-knotter" torpedo boat destroyer of the British Royal Navy. She was completed by Laird, Son & Company, Birkenhead, in 1897. One of four Quail-class destroyers, she served in the First World War, sinking the German submarine UC-39 in 1917, and was sold off after hostilities ended.
The Fairmile B motor launch was a very numerous class of motor launch produced in kit form by British boatbuilder Fairmile Marine, and then assembled and fitted out by numerous boatyards during the Second World War to meet the Royal Navy's coastal operation requirements.
HMS Zephyr was one of two Fervent-class destroyers which served with the Royal Navy. She was launched on 10 May 1895 from Hanna, Donald & Wilson at Paisley, Scotland. She served in home waters, and was sold in 1920.
HMS Conflict was the lead ship of the Conflict-class destroyers built by J. Samuel White, at East Cowes, Isle of Wight for the Royal Navy. She was launched on 13 December 1894, and entered service in 1899. After an initial spell in the Mediterranean Fleet, Conflict returned to British waters, where she served the rest of her career. Conflict was part of the Portsmouth Local Defence Flotilla during the First World War, which she survived. Conflict was sold for scrap on 20 May 1920.
The Coastal Forces of the Royal Canadian Navy (RCN) was a specialized naval force of well-armed, small and fast motor launch (ML) and motor torpedo boat (MTB) flotillas, primarily crewed by members of the Royal Canadian Naval Volunteer Reserve (RCNVR). Tasked with escort, coastal defence, anti-submarine, minesweeping and search and rescue duties, the Coastal Forces of the RCN contributed to securing Allied sea lines of communication off the coasts of Canada and Britain during the Second World War.
The CB class was a group of midget submarines built for the Italian Navy during World War II. However, they were also used by several other navies, seeing action in the Mediterranean and in the Black Sea.
HMS Leven was a Fairfield "30-knotter" destroyer of the Royal Navy, later classified as part of the C class. It was built in 1898–1899, and served with the Royal Navy through to the First World War, sinking a German U-boat in 1918. Leven was sold for scrapping in 1920.
HMS Recruit was a Clydebank three-funnel, 30-knot destroyer ordered by the Royal Navy under the 1895–1896 Naval Estimates. She was the fifth ship to carry this name since it was introduced in 1806 for an 18-gun brig-sloop, sold in 1822.
The Kaiman class were high-seas torpedo boats built for the Austro-Hungarian Navy between 1904 and 1910. A total of 24 boats were built by three shipbuilding companies. Yarrow Shipbuilders built the lead ship, Stabilimento Tecnico Triestino of Trieste built 13 boats, and Ganz-Danubius constructed the remaining 10 boats at their shipyards at Fiume. The class was considered to be a successful design, and all boats saw extensive active service during World War I, undertaking a range of tasks, including escort duties, shore bombardments, and minesweeping. All survived, although several were damaged by naval mines and collisions. One was torpedoed and badly damaged by a French submarine, and two sank an Italian submarine. All the boats were transferred to the Allies and scrapped at the end of the war, except for four that were allocated to the navy of the newly created Kingdom of Serbs, Croats and Slovenes. These were discarded and broken up between 1928 and 1930.
SMS V190 was a S-138-class large torpedo boat of the Imperial German Navy. She was built by the AG Vulcan shipyard at Stettin between 1910 and 1911, completing on 5 August 1911.
HMS TB 11 was a Cricket-class coastal destroyer or torpedo-boat of the British Royal Navy. TB 11 was built by the shipbuilder Yarrow from 1905 to 1907. She was used for local patrol duties in the First World War and was sunk by a German mine in the North Sea on 7 March 1916.
SMS G7 was a V1-class large torpedo boat of the Imperial German Navy. She was built by the Germaniawerft shipyard at Kiel between 1911 and 1912, completing on 30 April 1912.
HMC ML Q051 was a wooden Canadian-built Fairmile B motor launch (M.L.) upgunned submarine chaser delivered to the Royal Canadian Navy (RCN) on 24 November 1941. Originally designed for the Royal Navy by W.J. Holt of the British Admiralty and built by British boatbuilder Fairmile Marine, during the Second World War eighty Fairmile B motor launches were built in Canada for service with the Coastal Forces of the RCN.
HMC MLQ053 was a wooden Fairmile B motor launch (ML) upgunned submarine chaser delivered to the Royal Canadian Navy (RCN) on 17 November 1941. Originally designed for the Royal Navy by W.J. Holt of the British Admiralty and built by British boatbuilder Fairmile Marine, during the Second World War eighty Fairmile B motor launches were built in Canada for service with the Coastal Forces of the RCN.
HMS Opossum was a "twenty-seven knotter" torpedo boat destroyer of the British Royal Navy. Built by the Tyneside shipbuilder Hawthorn Leslie, Opossum was one of three destroyers built by Hawthorns that were ordered in 1894. She was launched in 1895 and completed in 1896. She remained in service during the First World War, where she was used for local patrol duties based at Plymouth and sank the German submarine UC-49 on 8 August 1918. She was sold for scrap in 1920.
HMS Zinnia was an Azalea-class minesweeping sloop of the Royal Navy, built in 1915 at the Swan Hunter & Wigham Richardson yard, at Wallsend in the United Kingdom.It was sold to Belgium on 19 April 1920 to join their new Corps of Destroyers and Sailors.
HMS Maenad was an Admiralty M-class destroyer which served with the Royal Navy during the First World War. The M class were an improvement on the previous L class, capable of higher speed. The vessel, launched in 1915, served in the Battle of Jutland in 1916, attacking both battleships and destroyers of the German High Seas Fleet. However, the vessel was notorious for undertaking a sharp manoeuvre which obstructed other destroyers in the fleet from attacking. Maenad also undertook anti-submarine patrols. In 1917, the ship mistakenly attacked the British submarine G12 thinking it was a German boat. The submarine escaped with damages. After the armistice that ended of the war, Maenad was placed in reserve until being sold to be broken up in Germany in 1921.
HMS Obedient was a Repeat Admiralty M-class destroyer which served with the Royal Navy during the First World War. The M class were an improvement on the preceding L class, capable of higher speed. Launched in 1915, the destroyer served with the Grand Fleet during the Battle of Jutland in 1916, helping sink the torpedo boat V48 and narrowiy missing the German battleships as they withdrew. Subsequently, Obedient took part in anti-submarine patrols, attacking U-70 in 1917. The conditions of service meant that the destroyer was soon worn out and, after the armistice that ended the war in 1918, Obedient was placed in reserve. Despite a service life of only five years, the vessel was decommissioned and, in 1921, sold to be broken up.
Royal Navy 