A submarine chaser or subchaser is a small naval vessel that is specifically intended for anti-submarine warfare. 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 large class of motor launch built by British boatbuilder Fairmile Marine and others 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.
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 manned 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.
HMS Osprey was a three-funnel, 30-knot destroyer ordered by the Royal Navy under the 1896–1897 Naval Estimates from Fairfields. She was the fifth ship to carry this name since it was introduced in 1797 for an 18-gun ship-sloop.
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.
Beli Orao was a royal yacht built in 1938–39 for the Yugoslav Royal Navy, which intended her to serve as a patrol boat, escort, or guard ship in wartime. Upon completion, she was pressed into service as the admiralty yacht – used by senior admirals for transport and to review fleet exercises. She was captured in April 1941 by the Italians during the World War II Axis invasion of Yugoslavia. The Regia Marina replaced her guns and used her as a gunboat for harbour protection and coastal escort duties, briefly as Alba then Zagabria. She was then used to train anti-submarine warfare specialists from the naval base at La Spezia.
HMS Rosalind was an R-class destroyer which served with the Royal Navy. The ship was launched by Thornycroft on 14 October 1916 as the first of five similar ships ordered from the yard. The design was used as the basis for five subsequent ships of the S-class also built by the company. Rosalind served as part of the Grand Fleet during the First World War, operating as an escort to other warships and in anti-submarine patrols alongside other destroyers. The vessel was sold to be broken up on 13 July 1926.
HMC ML Q050 was the first of a series of wooden Canadian-built Fairmile B Motor Launch (ML) boats delivered to the Royal Canadian Navy (RCN) on 18 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 80 Fairmile B motor launches were built in Canada for service with the Coastal Forces of the RCN.
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.
HMC ML Q054 was a wooden Canadian-built Fairmile B Motor Launch (ML) upgunned submarine chaser delivered to the Royal Canadian Navy (RCN) on 17 October 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 ML Q055 was a wooden Canadian-built Fairmile B Motor Launch (ML) upgunned submarine chaser delivered to the Royal Canadian Navy (RCN) on 6 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 1916, 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 