Tree-class trawlers were a class of

anti-submarine An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapo ...

naval trawler Naval trawlers are vessels built along the lines of a fishing trawler but fitted out for naval purposes; they were widely used during the First and Second World Wars. Some—known in the Royal Navy as "Admiralty trawlers"— were purpose-built to ...

s which served in the

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...

during the

Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

. They were nearly identical to the s, of which they are usually considered a subclass. Six Tree-class trawlers were lost during the war: ''Almond, Ash, Chestnut, Hickory, Juniper'' and ''Pine''. One, ''Mangrove'', was transferred to Portugal in 1943. By the end of 1946, only ''Olive'' and ''Walnut'' remained in service with the Royal Navy. Both were sold in 1948.

Ships in class

* Built by Ardrossan Dockyard Company,

Ardrossan Ardrossan (; ) is a town on the North Ayrshire coast in southwestern Scotland. The town has a population of 10,670 and forms part of a conurbation with Saltcoats and Stevenston known as the 'Three Towns'. Ardrossan is located on the east shore ...

, UK ** - Launched 1940, sold 1946 ** - Launched 1940, war loss 1941 * Built by Cochrane & Sons, Ltd.,

Selby Selby is a market town and civil parish in the Selby District of North Yorkshire, England, south of York on the River Ouse, with a population at the 2011 census of 14,731. The town was historically part of the West Riding of Yorkshire until ...

, UK ** - Launched 1939, war loss 1941 ** - Launched 1939, sold 1946 * Built by Cook, Welton & Gemmell,

Beverley Beverley is a market town, market and minster (church), minster town and a civil parishes in England, civil parish in the East Riding of Yorkshire, England, of which it is the county town. The town centre is located south-east of York's centre ...

, UK ** - Launched 1939, sold 1946 ** - launched 1939, sold 1946 * Built by

Ferguson Brothers Ferguson may refer to: Places Canada *Ferguson Avenue (Hamilton, Ontario) *Ferguson, British Columbia *Mount Ferguson (Ontario), a mountain in Temagami, Ontario United States *Ferguson, a meteorite fall in North Carolina *Ferguson, Arkansas * F ...

, Ltd.,

Port Glasgow Port Glasgow ( gd, Port Ghlaschu, ) is the second-largest town in the Inverclyde council area of Scotland. The population according to the 1991 census for Port Glasgow was 19,426 persons and in the 2001 census was 16,617 persons. The most recen ...

, UK ** - Launched 15 December 1939, commissioned 9 March 1940; sunk in the

Norwegian Sea The Norwegian Sea ( no, Norskehavet; is, Noregshaf; fo, Norskahavið) is a marginal sea, grouped with either the Atlantic Ocean or the Arctic Ocean, northwest of Norway between the North Sea and the Greenland Sea, adjoining the Barents Sea to ...

, 8 June 1940.Richard Humble, ''Hitler's High Seas Fleet'', p. 57. New York: Ballantine Books, 1971. ** - Launched 4 April 1942, transferred to Portugal 1943 as ''Faial'' (P2) *Built by Goole Shipbuilding & Repair Company,

Goole Goole is a port town and civil parish on the River Ouse in the East Riding of Yorkshire, England. The town's historic county is the West Riding of Yorkshire. According to the 2011 UK census, Goole parish had a population of 19,518, an increa ...

, UK ** - Launched 1940, war loss 1940 ** - Launched 1940, sold 1946 * Built by

Hall, Russell & Company Hall, Russell & Company, Limited was a shipbuilder based in Aberdeen, Scotland. History Brothers James and William Hall, Thomas Russell, a Glasgow engineer, and James Cardno Couper founded the company in 1864 to build steam engines and boile ...

Aberdeen Aberdeen (; sco, Aiberdeen ; gd, Obar Dheathain ; la, Aberdonia) is a city in North East Scotland, and is the third most populous city in the country. Aberdeen is one of Scotland's 32 local government council areas (as Aberdeen City), and ...

, UK ** - Launched 26 February 1940, sold 1948 ** - Launched 1940, war loss 1944 * Built by A. & J. Inglis, Ltd.,

Glasgow Glasgow ( ; sco, Glesca or ; gd, Glaschu ) is the most populous city in Scotland and the fourth-most populous city in the United Kingdom, as well as being the 27th largest city by population in Europe. In 2020, it had an estimated popul ...

, UK (part of

Harland and Wolff Harland & Wolff is a British shipbuilding company based in Belfast, Northern Ireland. It specialises in ship repair, shipbuilding and offshore construction. Harland & Wolff is famous for having built the majority of the ocean liners for the W ...

) ** - Launched 1939, sold 1946 ** - Launched 1940, sold 1946 * Built by Henry Robb, Ltd.,

Leith Leith (; gd, Lìte) is a port area in the north of the city of Edinburgh, Scotland, founded at the mouth of the Water of Leith. In 2021, it was ranked by '' Time Out'' as one of the top five neighbourhoods to live in the world. The earliest ...

, UK ** - Launched 1939, sold 1946 ** - Launched 1940, war loss 1940 * Built by Smith's Dock Company, Ltd., South Bank-on-Tees, UK ** - Launched 1939, sold 1946 ** ''Walnut'' - Launched 1939, sold 1948 as Baltic refugee ship ** - Launched 1939, sold 1946 ** - Launched 1939, sold 1946

Ships in class

References

See also