Royal Navy Submarine Service
Encyclopedia
The Royal Navy Submarine Service is the submarine
Submarine
A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

 element of the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

. It is sometimes known as the "Silent Service", on account of a submarine being required to operate quietly in order to remain undetected by enemy sonar
Sonar
Sonar is a technique that uses sound propagation to navigate, communicate with or detect other vessels...

. The service currently consists of seven fleet submarines (SSNs), of the Trafalgar
Trafalgar class submarine
The Trafalgar class is a class of nuclear-powered fleet submarines in service with the Royal Navy. They are a direct follow on from the Swiftsure class and were, until the introduction of the Astute class, the Royal Navy's most advanced nuclear fleet submarines.Seven boats were built and...

 and Astute classes, and four ballistic missile submarine
Ballistic missile submarine
A ballistic missile submarine is a submarine equipped to launch ballistic missiles .-Description:Ballistic missile submarines are larger than any other type of submarine, in order to accommodate SLBMs such as the Russian R-29 or the American Trident...

s (SSBN), of the Vanguard class
Vanguard class submarine
The Vanguard class are the Royal Navy's current nuclear ballistic missile submarines , each armed with up to 16 Trident II Submarine-launched ballistic missiles...

. It also operates the LR5 Submarine Rescue System. All the Royal Navy's submarines are now nuclear power
Nuclear power
Nuclear power is the use of sustained nuclear fission to generate heat and electricity. Nuclear power plants provide about 6% of the world's energy and 13–14% of the world's electricity, with the U.S., France, and Japan together accounting for about 50% of nuclear generated electricity...

ed.

The Royal Navy's use of submarines began in 1901, and for many years of the late 20th century was associated with HMS Dolphin in Hampshire. Flag Officer Submarines moved from Dolphin to the Northwood Headquarters
Northwood Headquarters
Northwood Headquarters is a military headquarters facility of the British Armed Forces in Eastbury, Hertfordshire, England, adjacent to the London suburb of Northwood...

 in 1978. In the early 21st century Flag Officer Submarines lost his solely submarine role and is now Commander Operations on the staff of Commander-in-Chief Fleet
Commander-in-Chief Fleet
Commander-in-Chief Fleet is the admiral responsible for the operation, resourcing and training of the ships, submarines and aircraft, and personnel, of the British Royal Navy...

. The Submarine School is now at HMS Raleigh
HMS Raleigh (shore establishment)
HMS Raleigh is the modern-day basic training facility of the Royal Navy at Torpoint, Cornwall, United Kingdom. It is spread over several square miles, and has damage control simulators and fire-fighting training facilities...

 at Torpoint
Torpoint
Torpoint is a civil parish and town on the Rame Peninsula in southeast Cornwall, England, United Kingdom. It is situated opposite the city of Plymouth across the Hamoaze which is the tidal estuary of the River Tamar....

 in Cornwall
Cornwall
Cornwall is a unitary authority and ceremonial county of England, within the United Kingdom. It is bordered to the north and west by the Celtic Sea, to the south by the English Channel, and to the east by the county of Devon, over the River Tamar. Cornwall has a population of , and covers an area of...

.

History

It is sometimes claimed that the United Kingdom was the last major maritime power to use submarines at the beginning of the 20th century, as the idea of submarine warfare was considered by many senior personnel in the Admiralty
Admiralty
The Admiralty was formerly the authority in the Kingdom of England, and later in the United Kingdom, responsible for the command of the Royal Navy...

 to be "Underhand, unfair and damned un-English" (Admiral Sir Arthur Wilson
Arthur Knyvet Wilson
Admiral of the Fleet Sir Arthur Knyvet Wilson VC, GCB, OM, GCVO was an English Admiral and briefly First Sea Lord who was awarded the Victoria Cross for gallantry during the war in Sudan...

 VC
Victoria Cross
The Victoria Cross is the highest military decoration awarded for valour "in the face of the enemy" to members of the armed forces of various Commonwealth countries, and previous British Empire territories....

, 1901). However, those in favour of experimenting with submarine technology eventually won the argument, and the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 launched its first submarine, Holland 1
Holland 1
Holland 1 was the first submarine commissioned by the Royal Navy, the first in a six-boat batch of the Holland-class submarine. She was lost in 1913 while under tow to the scrapyard following decommissioning...

, in 1901.

The Submarine Service proved its worth in World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

, where it was awarded five of the Royal Navy's 14 Victoria Cross
Victoria Cross
The Victoria Cross is the highest military decoration awarded for valour "in the face of the enemy" to members of the armed forces of various Commonwealth countries, and previous British Empire territories....

es of the war, the first by Lieutenant Norman Holbrook
Norman Douglas Holbrook
Commander Norman Douglas Holbrook VC was an English recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces...

, Commanding Officer of HMS B11
HMS B11
HMS B11 was the last boat of the Royal Navy's B class of submarines. Launched in 1906 it is best known for carrying out a successful attack on the Turkish battleship Mesudiye in the Dardanelles. an action for which her captain received the Victoria cross...

.

During World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 the major operating arenas were the Norwegian
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 waters; the Mediterranean where a flotilla of submarines fought a successful battle against the Axis
Axis Powers
The Axis powers , also known as the Axis alliance, Axis nations, Axis countries, or just the Axis, was an alignment of great powers during the mid-20th century that fought World War II against the Allies. It began in 1936 with treaties of friendship between Germany and Italy and between Germany and...

 replenishment route to North Africa
North Africa
North Africa or Northern Africa is the northernmost region of the African continent, linked by the Sahara to Sub-Saharan Africa. Geopolitically, the United Nations definition of Northern Africa includes eight countries or territories; Algeria, Egypt, Libya, Morocco, South Sudan, Sudan, Tunisia, and...

; and the Far East
Far East
The Far East is an English term mostly describing East Asia and Southeast Asia, with South Asia sometimes also included for economic and cultural reasons.The term came into use in European geopolitical discourse in the 19th century,...

 where Royal Navy submarines disrupted Japanese shipping
Allied submarines in the Pacific War
Allied submarines were used extensively during the Pacific War and were a key contributor to the defeat of the Empire of Japan. During the war, submarines of the United States Navy were responsible for 55% of Japan's merchant marine losses; other Allied navies added to the toll. The war against...

 operating in the Malacca Straits.

The first British nuclear-powered submarine, HMS Dreadnought (S101)
HMS Dreadnought (S101)
The seventh HMS Dreadnought was the United Kingdom's first nuclear-powered submarine, built by Vickers Armstrongs at Barrow-in-Furness. Launched by Queen Elizabeth II on Trafalgar Day 1960 and commissioned into service with the Royal Navy in April 1963, she continued in service until 1980...

 was launched in 1960 based around a US-built nuclear reactor
Nuclear reactor
A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are used for generating electricity and for the propulsion of ships. Usually heat from nuclear fission is passed to a working fluid , which runs through turbines that power either ship's...

. This was complemented by the Valiant class
Valiant class submarine
The Valiant class were a class of nuclear-powered fleet submarines in service with the Royal Navy from the mid 1960s until 1994. They were the first fully British nuclear fleet submarine; the earlier used an American nuclear reactor...

 from 1966, which featured the Rolls-Royce PWR
Rolls-Royce PWR
The Rolls-Royce pressurised water reactor series has powered British nuclear submarines since the Valiant class, commissioned in 1966. The first British nuclear submarine, HMS Dreadnought, was powered by a Westinghouse S5W reactor.- PWR1 :...

1 reactor.

Royal Navy submarines became an important part of the strategic nuclear deterrent with the introduction of the Resolution class
Resolution class submarine
The Resolution-class submarine armed with the Polaris missile was the United Kingdom's primary nuclear deterrent from the late 1960s to 1994, when they were replaced by the Vanguard-class submarine carrying the Trident II.-Background:...

 ballistic missile submarines (SSBNs) from 1968. These carried US-built Polaris
Polaris
Polaris |Alpha]] Ursae Minoris, commonly North Star or Pole Star, also Lodestar) is the brightest star in the constellation Ursa Minor. It is very close to the north celestial pole, making it the current northern pole star....

 missiles and were later replaced by the Vanguard class submarines and the Trident missile
Trident missile
The Trident missile is a submarine-launched ballistic missile equipped with multiple independently-targetable reentry vehicles . The Fleet Ballistic Missile is armed with nuclear warheads and is launched from nuclear-powered ballistic missile submarines . Trident missiles are carried by fourteen...

 system from 1994.

HMS Conqueror
HMS Conqueror (S48)
HMS Conqueror was a nuclear-powered fleet submarine that served in the Royal Navy from 1971 to 1990. She was built by Cammell Laird in Birkenhead...

 made history in 1982 during the Falklands War
Falklands War
The Falklands War , also called the Falklands Conflict or Falklands Crisis, was fought in 1982 between Argentina and the United Kingdom over the disputed Falkland Islands and South Georgia and the South Sandwich Islands...

 when she became the first nuclear-powered submarine to sink a surface ship, the ARA General Belgrano
ARA General Belgrano
The ARA General Belgrano was an Argentine Navy light cruiser in service from 1951 until 1982. Formerly the , she saw action in the Pacific theater of World War II before being sold to Argentina. After almost 31 years of service, she was sunk during the Falklands War by the Royal Navy submarine ...

.

In May 1991 Oberon class submarine
Oberon class submarine
The Oberon class was a 27-boat class of British-built diesel-electric submarines based on the successful British Porpoise-class submarine....

s HMS Opossum
HMS Opossum (S19)
HMS Opossum was an Oberon-class submarine in service with the Royal Navy from 1964 to 1993.- Service :Opossum was the eleventh Oberon-class boat commissioned by the Royal Navy. She was built by Cammell Laird shipbuilder at Birkenhead and launched on 23 May 1963...

 and her sister HMS Otus
HMS Otus (S18)
HMS Otus was a Royal Navy Oberon-class submarine. Built in 1962 at Scotts Yard in Greenock, Scotland, the sub's trials were conducted in Scottish waters, mainly Loch Long and Loch Fyne...

 returned to the submarine base
Submarine base
A submarine base is a military base that shelters submarines and their personnel.Examples of present-day submarine bases include HMNB Clyde, Île Longue , Naval Submarine Base Kings Bay, Naval Submarine Base New London, and Rybachiy Nuclear Submarine Base .The Israeli navy bases its growing submarine...

 HMS Dolphin
HMS Dolphin
Numerous Royal Navy vessels have been named HMS Dolphin after the dolphin.* The first seven Dolphins were small ketches and fireships., launched in 1731, was a 20-gun post ship, renamed Firebrand in 1755 and Penguin in 1757., launched in 1751, was a 24-gun post ship...

 in Gosport
Gosport
Gosport is a town, district and borough situated on the south coast of England, within the county of Hampshire. It has approximately 80,000 permanent residents with a further 5,000-10,000 during the summer months...

 from patrol in the Persian Gulf
Persian Gulf
The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...

 flying Jolly Rogers (see below), the only indication that they had been involved in alleged SAS
Special Air Service
Special Air Service or SAS is a corps of the British Army constituted on 31 May 1950. They are part of the United Kingdom Special Forces and have served as a model for the special forces of many other countries all over the world...

 and SBS
Special Boat Service
The Special Boat Service is the special forces unit of the British Royal Navy. Together with the Special Air Service, Special Reconnaissance Regiment and the Special Forces Support Group they form the United Kingdom Special Forces and come under joint control of the same Director Special...

 reconnaissance operations.

In 1999 HMS Splendid
HMS Splendid (S106)
HMS Splendid was a Royal Navy nuclear powered fleet submarine of the Swiftsure class. HMS Splendid was launched at Barrow on 5 October 1979, by Lady Ann Eberle, wife of Admiral Sir James Eberle, then Commander-in-Chief Fleet...

 participated in the Kosovo Conflict and became the first Royal Navy submarine to fire a cruise missile in anger.

After Operation Veritas
Operation Veritas
Operation Veritas was the codename used for British military operations against the Taliban government of Afghanistan in 2001. British forces played a supporting role to the American Operation Enduring Freedom. In addition, the British contribution was an important part of the overall forces deployed...

, the attack on Al-Qaeda and Taliban forces following the 9/11 attacks in the United States, it emerged that HMS Trafalgar
HMS Trafalgar (S107)
HMS Trafalgar is a decommissioned of the Royal Navy. Unlike the rest of the Trafalgar-class boats that followed, she was not launched with a pump jet propulsion system, but with a conventional 7-bladed propeller...

 was the first Royal Navy submarine to launch Tomahawk cruise missiles against Afghanistan,. HMS Triumph
HMS Triumph (S93)
HMS Triumph is a nuclear submarine of the Royal Navy and was the seventh and final boat of her class.Triumph was laid down in 1987 by Vickers Shipbuilding and Engineering Limited and launched in February 1991 by Mrs. Ann Hamilton, wife of the then Armed Forces Minister Archie Hamilton...

 was also involved in the initial strikes. On April 16, 2003 it was reported that HMS Turbulent
HMS Turbulent (S87)
HMS Turbulent is a of the Royal Navy built by Vickers Shipbuilding, Barrow-in-Furness.Turbulent is scheduled to be decommissioned at the end of 2011.-Operational history:...

, the first Royal Navy vessel to return home from the war against Iraq, had launched fourteen Tomahawk cruise missiles.

The Jolly Roger and the Submarine Service

Admiral of the Fleet Sir Arthur Wilson
Arthur Knyvet Wilson
Admiral of the Fleet Sir Arthur Knyvet Wilson VC, GCB, OM, GCVO was an English Admiral and briefly First Sea Lord who was awarded the Victoria Cross for gallantry during the war in Sudan...

 VC
Victoria Cross
The Victoria Cross is the highest military decoration awarded for valour "in the face of the enemy" to members of the armed forces of various Commonwealth countries, and previous British Empire territories....

, the Controller of the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, summed up the opinion of many in the Admiralty
Admiralty
The Admiralty was formerly the authority in the Kingdom of England, and later in the United Kingdom, responsible for the command of the Royal Navy...

 at the time when he said in 1901 "[Submarines are] underhand, unfair, and damned un-English. ... treat all submarines as pirates in wartime ... and hang all crews." In response, Lieutenant Commander (later Admiral Sir) Max Horton first flew the Jolly Roger on return to port after sinking the German cruiser SMS Hela
SMS Hela
SMS Hela was a light cruiser of the German Imperial Navy prior to and during World War I. The only ship of her class, Hela was built as an aviso and launched on 28 March 1895 in Bremen. She was named after the Hela peninsula near Danzig...

 and the destroyer SMS S-116 in 1914 while in command of the E class submarine
British E class submarine
The British E class submarines started out as improved versions of the British D class submarine. All of the first group and some of the second group were completed before the outbreak of World War I....

 HMS E9
HMS E9
HMS E9 was a British E class submarine built by Vickers, Barrow. She was laid down on 1 June 1912 and was commissioned on 18 June 1914.-Service history:...

.

In World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 it became common practice for the submarines of the Royal Navy to fly the Jolly Roger on completion of a successful combat mission where some action had taken place, but as an indicator of bravado and stealth rather than of lawlessness. For example in 1982 returning from the Falklands conflict HMS Conqueror flew the Jolly Roger depicting one dagger for the SBS deployment to South Georgia and one torpedo for her sinking of the Argentinian Cruiser Belgrano. The Jolly Roger is now the emblem of the Royal Navy Submarine Service.

Perisher

'Perisher' (as the Submarine Command Course
Submarine Command Course
The Submarine Command Course , previously known as the Commanding Officers Qualifying Course , and informally known as the Perisher because of its low success rate, is a training course for naval officers preparing to take command of a submarine.Created by the Royal Navy during World War I, the...

 is better known) is a 24-week course all officers must take prior to serving as an Executive Officer
Executive officer
An executive officer is generally a person responsible for running an organization, although the exact nature of the role varies depending on the organization.-Administrative law:...

 on board a Royal Navy Submarine. It has been run twice a year since 1917, usually starting on 2 July and 14 November each year. It is widely regarded as one of the toughest command courses in the world, with an historical failure rate of 25%.

If at any point during the training a candidate is withdrawn from training he will be nominated for boat transfer and kept occupied until the transfer. His bag is packed for him and he is notified of the failure when the boat arrives. On departure he is presented with a bottle of whisky
Whisky
Whisky or whiskey is a type of distilled alcoholic beverage made from fermented grain mash. Different grains are used for different varieties, including barley, malted barley, rye, malted rye, wheat, and corn...

. A failure on Perisher means that the unsuccessful candidate is not permitted to return to sea as a member of the Submarine Service (although they are still allowed to wear the dolphin badge). He is, however, permitted to remain in the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, moving into the surface fleet.

In more recent years, the United States Navy has sent some of its own submariner officers to undergo the 'Perisher', in order to foster and maintain closer links with the Royal Navy.

Since the Royal Navy no longer operates diesel-electric submarines, in 1995 the Royal Netherlands Navy
Royal Netherlands Navy
The Koninklijke Marine is the navy of the Netherlands. In the mid-17th century the Dutch Navy was the most powerful navy in the world and it played an active role in the wars of the Dutch Republic and later those of the Batavian Republic and the Kingdom of the Netherlands...

 has taken over the Perisher course for these boats from the British, and annually host a course that is attended by candidate submarine commanders from multiple navies around the world..

Traditions

The Submarine Service has many traditions that are not found in the surface fleet. These include slang unique to submariners (such as referring to the torpedo storage compartment as the Bomb Shop and the diesel engine room as the Donk Shop), a special communications code known as the Dolphin Code and the entitlement of a sailor to wear Dolphins upon entering the service. (Which were only awarded after completion of training and qualification in ships systems - on board first submarine posting (Part III training)

Active submarines

The Submarine Service consists of two classes of Fleet submarines and one class of Ballistic Missile submarines.

Fleet submarines

There are seven fleet submarines on active duty - six Trafalgar class submarine
Trafalgar class submarine
The Trafalgar class is a class of nuclear-powered fleet submarines in service with the Royal Navy. They are a direct follow on from the Swiftsure class and were, until the introduction of the Astute class, the Royal Navy's most advanced nuclear fleet submarines.Seven boats were built and...

s and one Astute class submarine
Astute class submarine
The Astute-class is the latest class of nuclear-powered fleet submarines in service with the Royal Navy. The class sets a new standard for the Royal Navy in terms of weapons load, communication facilities and stealth. The boats are being constructed by BAE Systems Submarine Solutions at...

. They are all nuclear submarines and are classified as SSNs.

These submarines are armed with the Spearfish torpedo
Spearfish torpedo
The Spearfish torpedo is the heavy torpedo used by the submarines of the Royal Navy. It can be guided by wire or by autonomous active or passive sonar, and provides both anti-submarine warfare and anti-surface ship warfare capability.It replaces the unreliable Tigerfish torpedo, which was...

 for anti-submarine and anti-surface warfare. Some are also armed with Tomahawk cruise missiles
BGM-109 Tomahawk
The Tomahawk is a long-range, all-weather, subsonic cruise missile. Introduced by General Dynamics in the 1970s, it was designed as a medium- to long-range, low-altitude missile that could be launched from a surface platform. It has been improved several times and, by way of corporate divestitures...

 for attacking targets on land. This capability was used by HMS Trafalgar
HMS Trafalgar (S107)
HMS Trafalgar is a decommissioned of the Royal Navy. Unlike the rest of the Trafalgar-class boats that followed, she was not launched with a pump jet propulsion system, but with a conventional 7-bladed propeller...

 against the Taliban in 2001 during Operation Veritas
Operation Veritas
Operation Veritas was the codename used for British military operations against the Taliban government of Afghanistan in 2001. British forces played a supporting role to the American Operation Enduring Freedom. In addition, the British contribution was an important part of the overall forces deployed...

. The Fleet submarines are also capable of surveillance
Surveillance
Surveillance is the monitoring of the behavior, activities, or other changing information, usually of people. It is sometimes done in a surreptitious manner...

 and reconnaissance
Reconnaissance
Reconnaissance is the military term for exploring beyond the area occupied by friendly forces to gain information about enemy forces or features of the environment....

 missions. Fleet submarines are sometimes referred to as attack or hunter-killer vessels.
Royal Navy Fleet submarines in active service
Name Class Pennant Number Launched
HMS Turbulent
HMS Turbulent (S87)
HMS Turbulent is a of the Royal Navy built by Vickers Shipbuilding, Barrow-in-Furness.Turbulent is scheduled to be decommissioned at the end of 2011.-Operational history:...

Trafalgar S87 1982
HMS Tireless
HMS Tireless (S88)
HMS Tireless is a nuclear submarine of the Royal Navy and is the third vessel of her class. She is the second submarine of the Royal Navy to bear this name...

Trafalgar S88 1984
HMS Torbay
HMS Torbay (S90)
HMS Torbay is a nuclear submarine of the Royal Navy and was the fourth vessel of her class.Torbay was the first vessel to be fitted with the new command system SMCS-NG , which meant that she was also the first Royal Navy vessel to put to sea under the "command" of the Microsoft Windows operating...

Trafalgar S90 1985
HMS Trenchant
HMS Trenchant (S91)
HMS Trenchant is a nuclear-powered fleet submarine of the Royal Navy built by Vickers Shipbuilding, Barrow-in-Furness. Trenchant is currently in service and is based at HMNB Devonport.The submarine was ordered on 22 March 1983...

Trafalgar S91 1986
HMS Talent
HMS Talent (S92)
HMS Talent is the sixth of seven nuclear submarines of the Royal Navy, and was built at Barrow-in-Furness.Talent was launched by The Princess Royal in April 1988 and commissioned in May 1990. She was the last submarine to be launched down a slipway.. The boat is affiliated with Shrewsbury in...

Trafalgar S92 1988
HMS Triumph
HMS Triumph (S93)
HMS Triumph is a nuclear submarine of the Royal Navy and was the seventh and final boat of her class.Triumph was laid down in 1987 by Vickers Shipbuilding and Engineering Limited and launched in February 1991 by Mrs. Ann Hamilton, wife of the then Armed Forces Minister Archie Hamilton...

Trafalgar S93 1991
HMS Astute
HMS Astute (S119)
HMS Astute is a nuclear-powered submarine in the Royal Navy, the lead ship of her class. Builders BAE Systems describe her as "the largest and most able attack submarine that the Royal Navy has operated, with a performance to rival any in the world"....

Astute S119 2007

Ballistic submarines

The four ballistic missile submarine
Ballistic missile submarine
A ballistic missile submarine is a submarine equipped to launch ballistic missiles .-Description:Ballistic missile submarines are larger than any other type of submarine, in order to accommodate SLBMs such as the Russian R-29 or the American Trident...

s (SSBN) of the Royal Navy are all of the Vanguard class. They were all built by Vickers Shipbuilding and Engineering Ltd, now BAE Systems Submarine Solutions. The SSBN flotilla or bomber 'fleet' tends to be almost a separate entity, for example it rarely uses pennant numbers preferring to use hull numbers, thus Vanguard 05, Victorious 06, Vigilant 07 and Vengeance 08.

The four Vanguard class boats are responsible for the United Kingdom's nuclear deterrent, and use the Trident missile
Trident missile
The Trident missile is a submarine-launched ballistic missile equipped with multiple independently-targetable reentry vehicles . The Fleet Ballistic Missile is armed with nuclear warheads and is launched from nuclear-powered ballistic missile submarines . Trident missiles are carried by fourteen...

 system. Each boat can carry up to 16 Trident II D5 Missiles, each of which may carry up to 12 nuclear warheads. It is UK Government policy to limit the actual number of warheads carried to 48 per boat.

There has been at least one SSBN on patrol at all times for over 30 years, for a total of over 300 missions.
Royal Navy ballistic missile submarines in active service
Name Class Pennant Number Launched
HMS Vanguard
HMS Vanguard (S28)
The eleventh HMS Vanguard of the Royal Navy is the lead boat of her class of Trident ballistic missile-armed submarines. The submarine is based at HMNB Clyde, Faslane....

Vanguard S28 1992
HMS Victorious
HMS Victorious (S29)
HMS Victorious is the second of the Royal Navy. Victorious carries the Trident ballistic missile, the UK's nuclear deterrent....

Vanguard S29 1993
HMS Vigilant
HMS Vigilant (S30)
HMS Vigilant is the third of the Royal Navy. Vigilant carries the Trident ballistic missile, the UK's nuclear deterrent.Vigilant was built at Barrow-in-Furness by Vickers Shipbuilding and Engineering Ltd , was launched in October 1995, and commissioned in November 1996.Peter Hennessy reporting for...

Vanguard S30 1996
HMS Vengeance
HMS Vengeance (S31)
HMS Vengeance is the fourth and final of the Royal Navy. Vengeance carries the Trident ballistic missile, the UK's nuclear deterrent....

Vanguard S31 1998

LR5 Submarine Rescue System

The Royal Navy also operates the LR5 Submarine Rescue System
LR5
The LR5 is a manned submersible which was used by the British Royal Navy until 2009 when it was leased to support the Royal Australian Navy. It is designed for retrieving sailors from stranded submarines and is capable of rescuing 16 at a time....

, designed for retrieving sailors from stranded submarines. It is capable of rescuing 16 at a time.

Future submarines

Seven s are planned, with the first in service, the second launched and being fitted out, boats 3 to 5 under construction, the procurement process started for the sixth, and the seventh officially planned. The first Astute class submarine, HMS Astute
HMS Astute (S119)
HMS Astute is a nuclear-powered submarine in the Royal Navy, the lead ship of her class. Builders BAE Systems describe her as "the largest and most able attack submarine that the Royal Navy has operated, with a performance to rival any in the world"....

, entered service in August 2010. The second Astute class submarine, HMS Ambush
HMS Ambush (S120)
HMS Ambush is an Astute-class nuclear fleet submarine of the Royal Navy, the second boat of her class, and is currently fitting out. Ambush was ordered from GEC's Marconi Marine on 17 March 1997...

, is expected to replace HMS Turbulent
HMS Turbulent (S87)
HMS Turbulent is a of the Royal Navy built by Vickers Shipbuilding, Barrow-in-Furness.Turbulent is scheduled to be decommissioned at the end of 2011.-Operational history:...

 in 2012. The Astute class submarine is the largest nuclear Fleet submarine ever to serve with the Royal Navy, nearly 30% larger than its predecessors. Its powerplant is the Rolls Royce PWR2 reactor, developed for the Vanguard class SSBN. The armament of Astute class is to be 38 Spearfish torpedo
Spearfish torpedo
The Spearfish torpedo is the heavy torpedo used by the submarines of the Royal Navy. It can be guided by wire or by autonomous active or passive sonar, and provides both anti-submarine warfare and anti-surface ship warfare capability.It replaces the unreliable Tigerfish torpedo, which was...

es (the US equivalent is the Mk48 ADCAP torpedo
Mark 48 torpedo
The Mark 48 and its improved ADCAP variant are heavyweight submarine-launched torpedoes. They were designed to sink fast, deep-diving nuclear-powered submarines and high-performance surface ships.-History:...

), Tomahawk
BGM-109 Tomahawk
The Tomahawk is a long-range, all-weather, subsonic cruise missile. Introduced by General Dynamics in the 1970s, it was designed as a medium- to long-range, low-altitude missile that could be launched from a surface platform. It has been improved several times and, by way of corporate divestitures...

 Block III/IV Cruise Missiles and submarine-launched mines. It is not known whether more Astute class submarines will be ordered.

Another development project is the Maritime Underwater Future Capability
Maritime Underwater Future Capability
Maritime Underwater Future Capability is the designation for UK Ministry of Defence studies to replace the Royal Navy's s and follow on from the ....

 (MUFC). These will follow on from the Astute class, and possibly replace the Trafalgar class. Reports (e.g. in Defense News) have suggested that the MUFC studies may result in a single class of multi-role submarines to replace the Trafalgar class, Vanguard class SSBNs and eventually the Astute class. This would require a submarine capable of launching conventional land-attack missiles, some form of nuclear missile (ICBM or tactical nuclear missile) as well as conventional submarine munitions including mines and torpedoes.

A new generation of ballistic missile submarines
British replacement of the Trident system
The British replacement of Trident is a proposal to replace the existing Vanguard class of four Trident ballistic-missile armed submarines with a new class designed to continue a nuclear deterrent after the current boats reach the end of their service lives...

 is also being planned, following a December 2006 Ministry of Defence
Ministry of Defence (United Kingdom)
The Ministry of Defence is the United Kingdom government department responsible for implementation of government defence policy and is the headquarters of the British Armed Forces....

 white paper
White paper
A white paper is an authoritative report or guide that helps solve a problem. White papers are used to educate readers and help people make decisions, and are often requested and used in politics, policy, business, and technical fields. In commercial use, the term has also come to refer to...

 which recommended that the nuclear weapons should be maintained into the 2040s. It advocated the currently preferred submarine-based system, as it remained the cheapest and most secure deterrence option available.

See also


Further reading

  • Hackmann, Willem. Seek & Strike: Sonar, anti-submarine warfare and the Royal Navy 1914-54. London: Her Majesty's Stationery Office, 1984. ISBN 0112904238

External links

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