Naval trawlers were purpose-built or requisitioned and operated by the Royal Navy (RN), mainly during World Wars I and II. Vessels built to Admiralty specifications for RN use were known as Admiralty trawlers. All trawlers operated by the RN, regardless of origin, were typically given the prefix HMT, for "His Majesty's Trawler".
Class [1] | Builders | Dates | Built | Lost | Dspl (tons) | Length (feet) | Power (ihp) | Speed (kts) | Crew | Armament |
---|---|---|---|---|---|---|---|---|---|---|
Mersey Admiralty trawler | Cochrane Lobnitz Ferguson Goole Shipbuilders | 1917–1919 | 112 [2] | 438 | 148 | 600 | 11 | up to 20 | usually one QF 12-pdr 12 cwt gun | |
Castle | Smith's Dock and others | 145 | 360 | 18 | ||||||
Strath | Hall Russell | 167 [3] | 311 | 18 | ||||||
The trawler Viola, built in 1906 at Hull and requisitioned September 1914 is the oldest surviving steam trawler in the world. She is currently beached at Grytviken in South Georgia, though there are plans to return her to Hull. [4]
Class [1] | Builder | Dates | Built | Lost | Dspl (tons) | Length (feet) | Power (ihp) | Speed (kts) | Crew | Armament |
---|---|---|---|---|---|---|---|---|---|---|
*Basset | 18 [5] | - | 460 | 12 | 33 | 3 in gun | ||||
Tree | 20 [6] | 6 | 530 | 164 | 850 | 11.5 | 35 | 12-pdr gun, 2 × .5 in, 2 × twin MG | ||
Dance | 20 [7] | 1 | 530 | 161 | 850 | 11.5 | 35 | 4 in gun, 3 × 20 mm | ||
Shakespearian | 12 [8] | 3 | 545 | 164 | 950 | 12 | 35 | 12-pdr gun, 3 × 20 mm | ||
Isles | 112 [9] | 12 | 545 | 164 | 850 | 12 | 40 | 12-pdr gun, 3 × 20 mm | ||
Portuguese | CUF (Lisbon) Arsenal do Alfeite (Lisbon) Mónica (Aveiro) | 12 [10] | 550 | 11 | 30 | 12-pdr gun | ||||
Brazilian | 680 | 12.5 | 40 | |||||||
Castle | 625 | 10 | 32 | |||||||
Hills | 8 [11] | 2 | 750 | 181 | 970 | 11 | 35 (40?) | 12-pdr gun, 3 × 20 mm | ||
Fish | 10 [12] | 1 | 670 | 167 | 700 | 11 | 35 | 4 in gun, 3 × 20 mm | ||
Round Table | 8 [13] | - | 440 | 137 | 600 | 12 | 35 | 12-pdr gun, 1 × 20 mm, 2 × MG | ||
Military | 9 [14] | - | 750 | 193 | 1000 | 11 | 40 | 4 in gun, 4 × 20 mm | ||
Requisitioned | 215 [15] | 72 | These were ships taken over by the Admiralty |
There were also 215 trawlers of no specific class [15] These were commercial trawlers that the Admiralty requisitioned. The Royal Navy classified requisitioned trawlers by manufacturer, although such classes were more diverse than traditional naval classifications. Seventy-two requisitioned trawlers were lost.
The Flower-class corvette was a British class of 294 corvettes used during World War II by the Allied navies particularly as anti-submarine convoy escorts in the Battle of the Atlantic. Royal Navy ships of this class were named after flowers.
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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 naval specifications; others were adapted from civilian use. Fishing trawlers were particularly suited for many naval requirements because they were robust vessels designed to work heavy trawls in all types of weather, and had large clear working decks. A minesweeper could be created by replacing the trawl with a mine sweep. Adding depth charge racks on the deck, ASDIC sonar below, and a 3-inch (76 mm) or 4-inch (102 mm) gun in the bow equipped the trawler for anti-submarine duties.
A naval drifter is a boat built along the lines of a commercial fishing drifter but fitted out for naval purposes. The use of naval drifters is paralleled by the use of naval trawlers.
HM Trawler Arab was a trawler launched in 1936. At the outbreak of World War II, she became a naval trawler serving in the Royal Naval Patrol Service. Lieutenant Richard Been Stannard won the Victoria Cross (VC) while serving as her commander during the Namsos campaign in 1940. The Admiralty returned her to her owners in 1945 and she remained in commercial service until she was scrapped at Ghent in 1963.
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HMIS Cornwallis (L09) was an Aubrietia-class sloop, originally built during World War I and commissioned as HMS Lychnis in the Royal Navy (RN) in 1917. She was transferred to the Royal Indian Marine (RIM) and commissioned as Cornwallis in 1921.
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Admiralty tugs were tugboats built for and operated by the Royal Navy. These were vessels built to Admiralty specifications and in specific classes during the First and Second World Wars. They were built to meet the Royal Navy's demand for auxiliary vessels and to supplement the civilian tugs requisitioned by the Admiralty for war service.
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