Coastal Forces was a division of 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 ...

initially established during

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, and then again in

World War II 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 ...

under the command of Rear-Admiral, Coastal Forces. It remained active until the last

minesweepers A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of ...

to wear the "HM Coastal Forces" cap tally were taken out of reserve in 1968. On 21 May 2020, Ministerial approval for the change in name from 1st Patrol Boat Squadron to Coastal Forces Squadron was given. It encompasses the

Archer-class patrol vessel The ''Archer'' class (or P2000) is a class of patrol and training vessel in service with the United Kingdom's Royal Navy, commonly referred to as a ''Fast Training Boat''. Most are assigned to Coastal Forces Squadron. and are armed and provid ...

s and the Batch 1

River-class offshore patrol vessel The River class is a class of offshore patrol vessels built primarily for the Royal Navy of the United Kingdom. A total of nine were built for the Royal Navy (RN), four Batch 1 and five Batch 2. One Batch 1 (), which was the Falklands guard ...

s and are responsible for UK EEZ Protection and Patrol.

History

Predecessor

The Royal Navy had previously operated

flotilla A flotilla (from Spanish, meaning a small ''flota'' (fleet) of ships), or naval flotilla, is a formation of small warships that may be part of a larger fleet. Composition A flotilla is usually composed of a homogeneous group of the same class ...

s of small

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, su ...

- and

depth-charge A depth charge is an anti-submarine warfare (ASW) weapon. It is intended to destroy a submarine by being dropped into the water nearby and detonating, subjecting the target to a powerful and destructive Shock factor, hydraulic shock. Most depth ...

-armed craft ( coastal motor boats) during

(1914-1918). They operated as often in action against the enemy coast as in defence of British coastal areas.

Establishment

The first post WWI motor torpedo boats built for the Royal Navy were built by the

British Powerboat Company The British Power Boat Company was a British manufacturer of motor boats, particularly racing boats and later military patrol boats. History The company was formed on 30 September 1927 when Hubert Scott-Paine bought and renamed the Hythe, Hamps ...

at Hythe, Southampton. MTBs 01-19 were built between 1935–38, following the hard chine planing hull designed with

T E Lawrence Thomas Edward Lawrence (16 August 1888 – 19 May 1935) was a British archaeologist, army officer, diplomat, and writer who became renowned for his role in the Arab Revolt (1916–1918) and the Sinai and Palestine Campaign (1915–1918 ...

("Lawrence of Arabia"), for high speed rescue of downed aircraft crew. During World War II (1939-1945), the first Coastal Forces headquarters was set up at in 1940 under

Rear Admiral Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral. It is regarded as a two star "admiral" rank. It is often regarde ...

Piers Kekewich, Flag Officer Coastal Forces. The chief staff officer to the admiral was

Augustus Agar Commodore Augustus Willington Shelton Agar, (4 January 1890 – 30 December 1968) was a Royal Navy officer in both the First and the Second World Wars. He was a recipient of the Victoria Cross, the highest award for gallantry in the face of th ...

, VC, who had commanded coastal motor boats during World War I and in British operations in the

Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from ...

in 1918 and 1919 in support of White Russian forces during the

Russian Civil War , date = October Revolution, 7 November 1917 – Yakut revolt, 16 June 1923{{Efn, The main phase ended on 25 October 1922. Revolt against the Bolsheviks continued Basmachi movement, in Central Asia and Tungus Republic, the Far East th ...

World War II operations

Royal Navy Coastal Forces craft operated mainly in the

English Channel The English Channel, "The Sleeve"; nrf, la Maunche, "The Sleeve" (Cotentinais) or ( Jèrriais), (Guernésiais), "The Channel"; br, Mor Breizh, "Sea of Brittany"; cy, Môr Udd, "Lord's Sea"; kw, Mor Bretannek, "British Sea"; nl, Het Kana ...

and

North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...

waters. They were also based in Malta, The 1st & 3rd MTB Flotillas, Numbers 01-06 & 14-19, and , Hong Kong, the 2nd MTB Flotilla, numbers 07-12, 26 & 27. On 19 December 1941 MTB 07 led the attack on Japanese landing craft in Kowloon Harbour, Hong Kong, taking fire from land, sea and air. The operation was arguably the most daring daylight MTB raid of all time losing over 40% of the flotilla. MTB 07 was hit 97 times losing two crew dead and all three engines. It was hailed as the " Balaclava of the sea". They were also used in the Mediterranean and off the Norwegian coastline. They were used at the

St. Nazaire Raid The St Nazaire Raid or Operation Chariot was a British amphibious attack on the heavily defended Normandie dry dock at St Nazaire in German-occupied France during the Second World War. The operation was undertaken by the Royal Navy (RN) a ...

and the

Dieppe Raid Operation Jubilee or the Dieppe Raid (19 August 1942) was an Allied amphibious attack on the German-occupied port of Dieppe in northern France, during the Second World War. Over 6,050 infantry, predominantly Canadian, supported by a regiment o ...

. They were used to attack German convoys and their S-boat (known to the

Allies An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...

as "

E-Boat E-boat was the Western Allies' designation for the fast attack craft (German: ''Schnellboot'', or ''S-Boot'', meaning "fast boat") of the Kriegsmarine during World War II; ''E-boat'' could refer to a patrol craft from an armed motorboat to a lar ...

") escorts, carry out clandestine raids and landings, and pick up secret agents in

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...

and

Brittany Brittany (; french: link=no, Bretagne ; br, Breizh, or ; Gallo language, Gallo: ''Bertaèyn'' ) is a peninsula, Historical region, historical country and cultural area in the west of modern France, covering the western part of what was known ...

. Alongside British officers and men, the coastal craft were manned by various Allied nationalities including

Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...

, Norwegian,

Canadian Canadians (french: Canadiens) are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of ...

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

n, and

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

ers. A number of Captain-class frigates were configured to operate as "coastal forces control frigates" (CFCF). Operating with Coastal Forces officers embarked and responsible for controlling and providing

radar Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...

support to groups of Coastal Forces' motor torpedo boats intercepting German motor torpedo boats in the

, these frigates were involved in the destruction of at least 26 E-Boats. By 1944 Coastal Forces numbered 3,000 officers and 22,000 ratings. Altogether there were 2,000 British Coastal Forces craft. Affectionately known as the Royal Navy's "little ships", they fought over 900 actions and sank around 400 enemy vessels, including 48 E-boats and 32

midget submarine A midget submarine (also called a mini submarine) is any submarine under 150 tons, typically operated by a crew of one or two but sometimes up to six or nine, with little or no on-board living accommodation. They normally work with mother ships, ...

s. They fired 1,169 torpedoes, shot down 32 enemy aircraft and carried out many mine laying operations. 170 of the "little ships" were sunk or otherwise destroyed.

Post-World War II

After World War II, the Royal Navy re-designated all its motor torpedo boats (MTBs) and motor gun boats (MGBs) as "fast

patrol boat A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and the ...

s." The ''Brave''-class fast patrol boats were the last craft to be built for the Coastal Forces, and the Coastal Forces were disbanded as a separate unit and their last base, (), decommissioned in 1956. The last sailors to wear the "HM Coastal Forces" cap tally were the ship's companies of the inshore

and on being taken out of reserve in 1968, before individual cap tallies for the minesweepers had been manufactured and issued.

Craft types used

Coastal Forces included the following types of coastal defence craft: At the outbreak of World War II in September 1939 there were three

s totalling 18 motor torpedo "short boats" between and long. These could typically maintain 40

knots A knot is a fastening in rope or interwoven lines. Knot may also refer to: Places * Knot, Nancowry, a village in India Archaeology * Knot of Isis (tyet), symbol of welfare/life. * Minoan snake goddess figurines#Sacral knot Arts, entertainme ...

and were armed with two

torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...

s. They were built mainly by the

British Power Boat Company The British Power Boat Company was a British manufacturer of motor boats, particularly racing boats and later military patrol boats. History The company was formed on 30 September 1927 when Hubert Scott-Paine bought and renamed the Hythe Shipya ...

, Vospers, and

Thornycroft Thornycroft was an English vehicle manufacturer which built coaches, buses, and trucks from 1896 until 1977. History In 1896, naval engineer John Isaac Thornycroft formed the Thornycroft Steam Carriage and Van Company which built its firs ...

. In 1940 a modified craft, the motor gun boat (MGB), was introduced. These were armed with weapons such as the 0.5 in (12.7 mm) Vickers machine gun, 2 pounder (40 mm) "pom pom", a single or twin

20 mm Oerlikon cannon The Oerlikon 20 mm cannon is a series of autocannons, based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I. It was widely produced by Oerlikon Contraves and others, with various models emplo ...

and ultimately the 6-pounder (57 mm) gun with autoloader. It was also apparent that larger craft were needed as the operational capability of the short boats was too restricted by sea conditions. Fairmile designed a series of larger coastal craft, up to long. The Fairmile A Type and B Type were

Motor Launch A Motor Launch (ML) is a small military vessel in Royal Navy service. It was designed for harbour defence and submarine chasing or for armed high-speed air-sea rescue. Some vessels for water police service are also known as motor launches. ...

es and the C Type was a motor gun boat. In 1943 the Fairmile D Type appeared. It was a motor torpedo boat – nicknamed the "Dog Boat" – and was designed as a counter to the German S-boat (known to the

as the "

E-boat E-boat was the Western Allies' designation for the fast attack craft (German: ''Schnellboot'', or ''S-Boot'', meaning "fast boat") of the Kriegsmarine during World War II; ''E-boat'' could refer to a patrol craft from an armed motorboat to a lar ...

"). It could be fitted as either a gun or a torpedo boat, so the designation MGB and MTB tended to be intermixed or 'MGB/MTB' used. It was a good sea boat and could maintain at full load. The later D types carried four

s. The Vosper Type I MTB appeared in 1943. This was a craft with four torpedo tubes and was capable of a maximum speed of .

Bases

Coastal Forces bases were located around the British coast and at major locations overseas. ;South coast * HMS ''Attack'',

Portland Portland most commonly refers to: * Portland, Oregon, the largest city in the state of Oregon, in the Pacific Northwest region of the United States * Portland, Maine, the largest city in the state of Maine, in the New England region of the northeas ...

* HMS ''Bee'', then HMS ''Grasshopper'', Weymouth * HMS ''Bee'', Weymouth 1942–1943 * HMS ''Bee'',

Holyhead Holyhead (,; cy, Caergybi , "Cybi's fort") is the largest town and a community in the county of Isle of Anglesey, Wales, with a population of 13,659 at the 2011 census. Holyhead is on Holy Island, bounded by the Irish Sea to the north, and is ...

1943–1945 * HMS ''Black Bat'',

Plymouth Plymouth () is a port city and unitary authority in South West England. It is located on the south coast of Devon, approximately south-west of Exeter and south-west of London. It is bordered by Cornwall to the west and south-west. Plymouth ...

* HMS ''Hornet'', Haslar,

Gosport Gosport ( ) is a town and non-metropolitan borough on the south coast of Hampshire, South East England. At the 2011 Census, its population was 82,662. Gosport is situated on a peninsula on the western side of Portsmouth Harbour, opposite t ...

* HMS ''Tadpole'',

Poole Poole () is a large coastal town and seaport in Dorset, on the south coast of England. The town is east of Dorchester and adjoins Bournemouth to the east. Since 1 April 2019, the local authority is Bournemouth, Christchurch and Poole Counc ...

* HMS ''Wasp'',

Dover Dover () is a town and major ferry port in Kent, South East England. It faces France across the Strait of Dover, the narrowest part of the English Channel at from Cap Gris Nez in France. It lies south-east of Canterbury and east of Maidstone ...

Coastal Forces ;West coast * HMS ''Ferret II''

Port of Londonderry Londonderry Port, now operating as Foyle Port, is a port located on Lough Foyle in Northern Ireland. It is the United Kingdom’s most westerly port and an important northerly port on the island of Ireland. The current port is at Lisahally, Co ...

Northern Ireland Northern Ireland ( ga, Tuaisceart Éireann ; sco, label= Ulster-Scots, Norlin Airlann) is a part of the United Kingdom, situated in the north-east of the island of Ireland, that is variously described as a country, province or region. Nort ...

* HMS ''Seahawk''

Ardrishaig Ardrishaig ( gd, Àird Driseig) is a coastal village on Loch Gilp, at the southern (eastern) entrance to the Crinan Canal in Argyll and Bute in the west of Scotland. It lies immediately to the south of Lochgilphead, with the nearest larger to ...

Argyll Argyll (; archaically Argyle, in modern Gaelic, ), sometimes called Argyllshire, is a historic county and registration county of western Scotland. Argyll is of ancient origin, and corresponds to most of the part of the ancient kingdom of ...

* History of HMS St Christopher
/ref> Fort William,

Inverness-shire Inverness-shire ( gd, Siorrachd Inbhir Nis) is a historic county, registration county and lieutenancy area of Scotland. Covering much of the Highlands and Outer Hebrides, it is Scotland's largest county, though one of the smallest in populatio ...

;East Coast * ,

Harwich Harwich is a town in Essex, England, and one of the Haven ports on the North Sea coast. It is in the Tendring district. Nearby places include Felixstowe to the north-east, Ipswich to the north-west, Colchester to the south-west and Clacton-on- ...

* HMS ''Beehive'',

Felixstowe Felixstowe ( ) is a port town in Suffolk, England. The estimated population in 2017 was 24,521. The Port of Felixstowe is the largest container port in the United Kingdom. Felixstowe is approximately 116km (72 miles) northeast of London. His ...

* HMS ''Midge'',

Great Yarmouth Great Yarmouth (), often called Yarmouth, is a seaside town and unparished area in, and the main administrative centre of, the Borough of Great Yarmouth in Norfolk, England; it straddles the River Yare and is located east of Norwich. A pop ...

* HMS ''Minos II'', then HMS ''Mantis'',

Lowestoft Lowestoft ( ) is a coastal town and civil parish in the East Suffolk district of Suffolk, England.OS Explorer Map OL40: The Broads: (1:25 000) : . As the most easterly UK settlement, it is north-east of London, north-east of Ipswich and sou ...

* HMS ''Sandfly'',

Peterhead Peterhead (; gd, Ceann Phàdraig, sco, Peterheid ) is a town in Aberdeenshire, Scotland. It is Aberdeenshire's biggest settlement (the city of Aberdeen itself not being a part of the district), with a population of 18,537 at the 2011 Census. ...

* HMS ''Flora II'',

Invergordon Invergordon (; gd, Inbhir Ghòrdain or ) is a town and port in Easter Ross, in Ross and Cromarty, Highland (council area), Highland, Scotland. It lies in the parish of Rosskeen. History The town built up around the harbour which was establish ...

* HMS ''Flora III'', Invergordon ;Mediterranean * HMS ''Gregale'',

Malta Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...

* , HMS ''Regea'',

Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandria ...

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediter ...

* HMS ''Razorbill'',

Algiers Algiers ( ; ar, الجزائر, al-Jazāʾir; ber, Dzayer, script=Latn; french: Alger, ) is the capital and largest city of Algeria. The city's population at the 2008 Census was 2,988,145Census 14 April 2008: Office National des Statistiques ...

* ,

;Indo-china * HMS ''Cheetah'',

Bombay Mumbai (, ; also known as Bombay — the official name until 1995) is the capital city of the Indian state of Maharashtra and the ''de facto'' financial centre of India. According to the United Nations, as of 2018, Mumbai is the second- ...

(

Royal Indian Navy The Royal Indian Navy (RIN) was the naval force of British India and the Dominion of India. Along with the Presidency armies, later the Indian Army, and from 1932 the Royal Indian Air Force, it was one of the Armed Forces of British India. Fr ...

) ;Other * HMS ''Argyll'' * ,

Newhaven, Sussex Newhaven is a port town in East Sussex in England, lying at the mouth of the River Ouse. The town developed during the Middle Ages as the nearby port of Seaford began drying up, forcing a new port to be established. A sheltered harbour was b ...

* HMS ''Beaver II'',

Immingham Immingham is a town, civil parish and ward in the North East Lincolnshire unitary authority of England. It is situated on the south-west bank of the Humber Estuary, and is north-west from Grimsby. The region was relatively unpopulated and un ...

* HMS ''Britannia III'', Dartmouth * HMS ''Cicala'', Dartmouth * ,

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 ...

* HMS ''Dartmouth'' II, Dartmouth * HMS ''Fervent'',

Ramsgate Ramsgate is a seaside resort, seaside town in the district of Thanet District, Thanet in east Kent, England. It was one of the great English seaside towns of the 19th century. In 2001 it had a population of about 40,000. In 2011, according to t ...

* HMS ''Forte IV'', Falmouth * HMS ''Forward II'', Newhaven * HMS ''Fox''

Lerwick Lerwick (; non, Leirvik; nrn, Larvik) is the main town and port of the Shetland archipelago, Scotland. Shetland's only burgh, Lerwick had a population of about 7,000 residents in 2010. Centred off the north coast of the Scottish mainland ...

* ,

Royal Naval Dockyard, Bermuda HMD Bermuda ( Her/His Majesty's Dockyard, Bermuda) was the principal base of the Royal Navy in the Western Atlantic between American independence and the Cold War. The Imperial fortress colony of Bermuda had occupied a useful position astride ...

Commonwealth coastal forces

Although

British Commonwealth The Commonwealth of Nations, simply referred to as the Commonwealth, is a political association of 56 member states, the vast majority of which are former territories of the British Empire. The chief institutions of the organisation are the Co ...

coastal forces operated independently from British ones, they used similar vessels:

Surviving craft

Some surviving motor launches in British waters were taken on as pleasure boats and a number of them are on the

National Register of Historic Vessels National Historic Ships UK is a government-funded independent organisation that advises UK governments and others on matters relating to historic ships.

References

Notes

Bibliography

* Cooper, Bryan. (1972) ''Battle of the Torpedo Boats.'' * Holman, Gordon (1944) ''The Little Ships.'' London: Hodder & Stroughton OCLC 2300084 * Konstam, Angus (2003) ''British Motor Torpedo Boat 1939–45.'' Osprey * Lambert, John and Ross, Al (1990) ''Allied Coastal Forces of World War II, Volume I: Fairmile designs and US Submarine Chasers.'' * Lavery, Brian (2006
''Churchill's Navy: The Ships, Men and Organisation, 1939-1945''
* * Kemp, Paul J (1997) ''British Coastal Forces of WWII'', ISO Publications, London, * * Pickles, Harold (1995) ''Untold Stories of Small Boats at War: Coastal Forces Veterans Remember'' * Pope, Dudley (2006) ''Flag 4: The Battle of Coastal Forces in the Mediterranean 1939-1945.'' * Reynolds, L.C. and Cooper, H.F. (1999) ''Mediterranean MTBs at War: Short MTB Flotilla Operations, 1939-45.'' * Reynolds, L. C. (2000) ''Home Waters MTBs at War: Channel and North Sea MTB and MGB Flotilla Operations, 1939-1945''. * Reynolds, L. C. and Lord Lewin (2000) ''Dog Boats at War: A History of the Operations of the Royal Navy D Class Fairmile Motor Torpedo Boats and Motor Gunboats 1939-1945'', Sutton Publications Inc, * Reynolds, L. C. (2002) ''Motor Gunboat 658: The Small Boat War in the Mediterranean.'' * Scott, Peter and Hichens, Antony (2009
''The Battle of the Narrow Seas: A History of the Light Coastal Forces in the Channel and North Sea, 1939-1945''
(reprint) Naval Institute Press. .

External links

Royal Navy Coastal Forces Veterans

The Coastal Forces Heritage Trust

UK National Register of Historic Vessels

Motor launches and MTBs of the Coastal Forces

Personal recollections
{{Admiralty Department, state=collapsed Naval units and formations of the United Kingdom Military units and formations of the Royal Navy in World War II World War II torpedo boats World War II gunboats