Tree-class trawler

	HMT Acacia
Class overview
Operators	Royal Navy; Portuguese Navy;
Built	1939–1945
Completed	20
Lost	6
General characteristics
Type	Naval trawler
Displacement	545 tons
Length	164 ft (50 m)
Beam	27 ft 8 in (8.43 m)
Draught	11 feet i inch (mean)
Propulsion	One triple expansion reciprocating engine, 1 shaft, 850 ihp
Speed	12 knots
Complement	40
Armament	1 × QF 12-pounder (76-mm) anti-aircraft gun; 3 × 20mm Oerlikon AA guns; 30 × Depth charges;

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Tree-class trawlers were a class of anti-submarine naval trawlers which served in the Royal Navy during the Second World War. They were nearly identical to the Isles-class trawlers, 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.^[2] Both were sold in 1948.

Ships in class

Built by Ardrossan Dockyard Company, Ardrossan, UK
- Acacia – Launched 1940, sold 1946
- Almond – Launched 1940, war loss 1941
Built by Cochrane & Sons, Ltd., Selby, UK
- Ash – Launched 1939, war loss 1941
- Bay – Launched 1939, sold 1946
Built by Cook, Welton & Gemmell, Beverley, UK
- Birch – Launched 1939, sold 1946
- Blackthorn – launched 1939, sold 1946
Built by Ferguson Brothers, Ltd., Port Glasgow, UK
- Juniper – Launched 15 December 1939, commissioned 9 March 1940; sunk in the Norwegian Sea, 8 June 1940.^[3]
- Mangrove – Launched 4 April 1942, transferred to Portugal 1943 as Faial (P2)
Built by Goole Shipbuilding & Repair Company, Goole, UK
- Chestnut – Launched 1940, war loss 1940
- Deodar – Launched 1940, sold 1946
Built by Hall, Russell & Company, Aberdeen, UK
- Olive – Launched 26 February 1940, sold 1948
- Pine – Launched 1940, war loss 1944
Built by A. & J. Inglis, Ltd., Glasgow, UK (part of Harland & Wolff)
- Elm – Launched 1939, sold 1946
- Fir – Launched 1940, sold 1946
Built by Henry Robb, Ltd., Leith, UK
- Hazel – Launched 1939, sold 1946
- Hickory – Launched 1940, war loss 1940
Built by Smith's Dock Company, Ltd., South Bank-on-Tees, UK
- Rowan – Launched 1939, sold 1946
- Walnut – Launched 1939, sold 1948 as Baltic refugee ship
- Whitethorn – Launched 1939, sold 1946
- Wistaria – Launched 1939, sold 1946

References

^ Robert Gardiner (ed. dir.), Conway's All the World's Fighting Ships, p. 66. London: Conway Maritime Press, 1980.
^ Antony Preston (ed.), Jane's Fighting Ships of World War II, p. 78. New York: Military Press, 1989. This is largely a reprint of Jane's Fighting Ships 1946-47 with materials from some earlier editions.
^ Richard Humble, Hitler's High Seas Fleet, p. 57. New York: Ballantine Books, 1971.

v t e British naval ship classes of the Second World War
Aircraft carriers	Courageous Eagle Ark Royal Illustrious Implacable Audacious^C Malta^X
Light aircraft carriers	Argus Hermes Unicorn Colossus Majestic^C Centaur^C
Escort carriers	Archer^AV Audacity^V Avenger^AV Attacker^A Ruler^A Activity^V Pretoria Castle^V Nairana^V
Battleships	Queen Elizabeth Revenge Nelson King George V Lion^X Vanguard^C
Battlecruisers	Renown Hood
Heavy cruisers	Hawkins County York
Light cruisers	C Danae Hawkins Emerald Leander Arethusa Town Dido Fiji Minotaur Neptune^X Minotaur (1947)^X
Destroyer leaders	Thornycroft type (Shakespeare) Admiralty type (Scott)
Destroyers	R S V & W Town^A Ambuscade Amazon A & B C & D E & F G & H I Tribal J, K & N Hunt L & M O & P Q & R S & T U & V W & Z C Battle Weapon^C G^X Daring^C,P
Frigates	River Captain^A Colony^A Loch Bay
Corvettes	Flower Castle
Sloops	24 Bridgewater Hastings Banff^A Shoreham Grimsby Kingfisher Bittern Egret Black Swan
Minelayers	Adventure Abdiel Plover Linnet M Agamemnon^V Menestheus^V Port Napier^V Port Quebec^V Southern Prince^V Teviot Bank^V
Minesweepers	Hunt Halcyon Bangor MMS Auk^A Algerine Cybele
Netlayers	Guardian Mary White Protector Bar Net
Submarines	H L Odin Parthian Rainbow S River Grampus T U P611 V Amphion X XE
Coastal	Harbour defence motor launch Fairmile B motor launch Motor torpedo boat Motor gunboat Steam gun boat Insect-class gunboat Dragonfly-class river gunboat Type Two 63 ft HSL
Other	Trawlers Castle Basset Isles Portuguese Tree Dance Shakespearian Round Table Monitors Erebus Roberts Seaplane carriers Pegasus Albatross Submarine depot ship Adamant Bonaventure Forth Maidstone Titania Merchant aircraft carriers Fighter catapult ships Armed merchant cruisers Ocean boarding vessels
A American built X Cancelled C Completed after the war C,P Laid down and completed after the war V Conversions

Ships in class

References

See also