Blindfire (radar)
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Rapier is a
surface-to-air missile A surface-to-air missile (SAM), also known as a ground-to-air missile (GTAM) or surface-to-air guided weapon (SAGW), is a missile designed to be launched from the ground to destroy aircraft or other missiles. It is one type of anti-aircraft syst ...
developed for the
British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...
to replace their towed Bofors 40/L70
anti-aircraft gun Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...
s. The system is unusual as it uses a manual optical guidance system, sending guidance commands to the missile in flight over a radio link. This results in a high level of accuracy, therefore a large warhead is not required. Entering service in 1971, it eventually replaced all other anti-aircraft weapons in British Army service; both the Bofors guns used against low-altitude targets and the Thunderbird missile used against longer-range and higher-altitude targets. As the expected air threat moved from medium-altitude strategic missions to low-altitude strikes, the fast reaction time and high manoeuvrability of the Rapier made it more effective than either of these weapons, replacing most of them by 1977. Rapier was later selected by the
RAF Regiment The Royal Air Force Regiment (RAF Regiment) is part of the Royal Air Force and functions as a specialist corps. Founded by royal warrant in 1942, the Corps carries out soldiering tasks relating to the delivery of air power. Examples of such ta ...
to replace their Bofors guns and Tigercat missiles. It also saw international sales. As of 2021, it was in the process of being replaced as one of the UK's primary air-defence weapons by
Sky Sabre The CAMM (Common Anti-Air Modular Missile) is a family of surface-to-air missiles developed by MBDA UK for the United Kingdom. CAMM shares some common features and components with the ASRAAM air-to-air missile, but with updated electronics and an ...
.


History


PT.428

The introduction of medium-range surface-to-air missiles, or surface-to-air guided weapons (SAGW) as they are known in the UK, had made flying at medium or high altitudes anywhere near the
front line A front line (alternatively front-line or frontline) in military terminology is the position(s) closest to the area of conflict of an armed force's personnel and equipment, usually referring to land forces. When a front (an intentional or uninte ...
near suicidal. In response, air forces began introducing aircraft and weapons meant to be used at low altitudes, in
nap-of-the-earth Nap-of-the-earth (NOE) is a type of very low-altitude flight course used by military aircraft to avoid enemy detection and attack in a high-threat environment. Other, mostly older terms include "ground-hugging", "terrain masking", "flying under t ...
flying that used landforms to block the view of the aircraft from the
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 ...
systems on the missiles. By the late 1950s, the
British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...
considered this threat considerable as new aircraft like the
Sukhoi Su-7 The Sukhoi Su-7 ( NATO designation name: Fitter-A) is a swept wing, supersonic fighter aircraft developed by the Soviet Union in 1955. Originally, it was designed as a tactical, low-level dogfighter, but was not successful in this role. On the ...
became common and higher performance designs were in the pipeline. Against low-flying aircraft, only
anti-aircraft gun Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...
s were suitable, as they could be quickly swung and fired in seconds. However, the relatively short range of their Bofors 40/L56 guns meant they had only a very short period of time in which the aircraft was close enough to fire on. To improve this, the Army began the development of a massively improved weapon known as " Red Queen". This used a large round in a
rotary cannon A rotary cannon, rotary autocannon, rotary gun or Gatling cannon, is any large-caliber multiple-barreled automatic firearm that uses a Gatling-type rotating barrel assembly to deliver a sustained saturational direct fire at much greater rate ...
arrangement for high rates of fire. In spite of some progress, in 1959, the General Staff concluded that guns were no longer useful against modern aircraft. For their immediate needs they purchased the new Bofors 40/L70, and for the longer term began a new missile development for a short-range, rapid-reaction weapon, known as the Light Anti-Aircraft (LAA) system. The initial design contest was won by
British Aircraft Corporation The British Aircraft Corporation (BAC) was a British aircraft manufacturer formed from the government-pressured merger of English Electric Aviation Ltd., Vickers-Armstrongs (Aircraft), the Bristol Aeroplane Company and Hunting Aircraft in 1 ...
(BAC) in 1960, and given the development name PT.428. This called for a system that could be carried on a single 4-ton
Bedford TK The Bedford TK was a truck manufactured by Bedford. Launched in 1960 to replace the Bedford S type, the TK was scheduled to be replaced by the Bedford TL in 1981, but manufacturing of the TK continued as a cheaper alternative. A military 4x4 ...
truck. The firing unit was a single piece that could be taken off for firing, or fired from the truck in an emergency. The system was deliberately designed to fit, when taken apart, as a single load in the
Fairey Rotodyne The Fairey Rotodyne was a 1950s British compound gyroplane designed and built by Fairey Aviation and intended for commercial and military uses.television camera A professional video camera (often called a television camera even though its use has spread beyond television) is a high-end device for creating electronic moving images (as opposed to a movie camera, that earlier recorded the images on film). O ...
for target identification, and eighteen missiles in two nine-round boxes. As budget pressures escalated in the early 1960s, the Army was given the choice of picking either PT.428 or their Blue Water nuclear missile. They chose the latter, a decision
Solly Zuckerman Solomon "Solly" Zuckerman, Baron Zuckerman (30 May 1904 – 1 April 1993) was a British public servant, zoologist and operational research pioneer. He is best remembered as a scientific advisor to the Allies on bombing strategy in the Second Wo ...
found rather questionable. The Army officially replaced PT.428 with the similar but slightly less advanced MIM-46 Mauler from the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
. Mauler combined a search
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 ...
and nine missiles using either radar or
infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...
guidance on a single M113-derived vehicle. The concept was similar to PT.428, but larger and with fewer missiles.


Sightline

During the development of PT.428, BAC had also considered a lightweight version of the system which mounted six of the PT.428 missiles on a trailer that could be towed by a pickup version of the
Land Rover Land Rover is a British brand of predominantly four-wheel drive, off-road capable vehicles, owned by multinational car manufacturer Jaguar Land Rover (JLR), since 2008 a subsidiary of India's Tata Motors. JLR currently builds Land Rovers ...
. An
early warning radar An early-warning radar is any radar system used primarily for the long-range detection of its targets, i.e., allowing defences to be alerted as ''early'' as possible before the intruder reaches its target, giving the air defences the maximum t ...
would be mounted on a framework above the roof of the truck, and initial tracking would be manual using a pair of
binoculars Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most binoculars are sized to be held ...
mounted on a gimbal system in the truck bed. A small antenna on the launcher trailer would communicate with the missile to bring it into alignment with the binoculars and then follow
semi-active radar homing Semi-active radar homing (SARH) is a common type of missile guidance system, perhaps the most common type for longer-range Air-to-air missile, air-to-air and surface-to-air missile systems. The name refers to the fact that the missile itself is ...
(SARH) from that point. When PT.428 ended in 1961, BAC began considering less-expensive options based on the same general concept."Rapier 2000/Jernas"
''Jane's Strategic Weapon Systems'', 15 February 2008
During this time,
Colin Baron Colin Baron (20 May 1921 – 7 November 1987) was a British engineer from Yorkshire who designed weapon systems, namely anti-aircraft missiles (surface-to-air missiles), for the Ministry of Defence (UK). Early life He was the son of John Baron ...
and
John Twinn John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second E ...
at the
Royal Aircraft Establishment The Royal Aircraft Establishment (RAE) was a British research establishment, known by several different names during its history, that eventually came under the aegis of the Ministry of Defence (United Kingdom), UK Ministry of Defence (MoD), bef ...
were developing an optical semi-automatic command to line of sight (SACLOS) system. Using this with the PT.428 missile produced the Sightline concept, which would be much less expensive than the original radar-guided version. The next year, Mauler was downgraded on its way to being cancelled, leaving both the US and British Army with no modern short-range anti-aircraft systems. The General Staff and Air Staff responded by issuing the combined GASR.3132 requirement for a clear-weather daytime SAM for both the Army and the
RAF Regiment The Royal Air Force Regiment (RAF Regiment) is part of the Royal Air Force and functions as a specialist corps. Founded by royal warrant in 1942, the Corps carries out soldiering tasks relating to the delivery of air power. Examples of such ta ...
. Whether GASR.3132 was designed for Sightline, or Sightline for GASR.3132, is not clear in existing references. The new concept was given the name "Defoe". An even smaller and cheaper system lacking an early warning radar was also considered under GASR.3134.


Rapier

In 1963, Defoe was made official, given the development target ET.316. BAC management initially gave it the name "Mongoose", but during a board meeting the issue arose that no one knew what more than one mongoose was called; mongooses? mongeese? The name "rapier" was suggested and made official. As development continued, it became increasingly clear that the Rapier was a much more formidable weapon than initially expected. The optical tracking system was so accurate that the missile almost always hit the aircraft, so even with its small warhead and lack of a
proximity fuze A proximity fuze (or fuse) is a Fuze (munitions), fuze that detonates an Explosive material, explosive device automatically when the distance to the target becomes smaller than a predetermined value. Proximity fuzes are designed for targets such ...
it almost certainly guaranteed a kill. BAC joked that the system was a "hit-ile", as opposed to a "miss-ile". It also became clear that the warning radar system would be invaluable in the field, and GASR.3134 was dropped. The first test firings of the missile took place in 1966. The system was extensively tested at Woomera, with considerable support from the
Australian Army The Australian Army is the principal Army, land warfare force of Australia, a part of the Australian Defence Force (ADF) along with the Royal Australian Navy and the Royal Australian Air Force. The Army is commanded by the Chief of Army (Austral ...
, who were early users of the Rapier system. Some of the Australian staff at Woomera began development of a simulator system in 1965 in order to understand and tune the manual guidance system. This consisted of a joystick from the Rapier optical tracker which caused the projected image of the missile to move about. Models of the missile and various target aircraft were constructed and shot using stop motion filming techniques to make a selection of films of various target attack sequences across the Woomera sky. The system was completed in 1968 and in initial testing, it seemed tracking was a serious problem, and it appeared the British Army was concerned that the system would simply be beyond the capabilities of the average gunner. However, some of the problems were ultimately solved by adjusting the mechanical feedback in the joystick so it more closely matched the difficulty the missile would have responding to various inputs, and with that solved, many of the remaining issues were worked out through a massive simulation run and data processing on an IBM 7090. Complete systems were tested in 1968, which led to a production contract being issued in 1969. On a parallel track, the RAF Regiment had been looking for a short-range weapon for airfield defense. Eventually, this led to the development of the Tigercat system in 1967, an adaptation of the Seacat naval surface-to-air missile system. Tigercat was similar to Rapier in basic concept, but based on older technologies and thus somewhat larger and heavier while offering lower performance. Tigercat was introduced into service with No 48 Squadron RAF Regiment in 1968, giving the RAF Regiment the UK's first effective fully air portable low-level SAM system and valuable experience in operating systems of this type. In 1972 a trials unit known as the Rapier Pilot Battery was formed jointly by No 63 Squadron RAF Regiment and 9 (Plassey) Light Air Defence Battery Royal Artillery. Comprehensive trials ended in 1973 and the first Rapier unit in British service, No. 63 Squadron, deployed to its operational station in Germany in mid-1974. In the 1980s, a new training simulator system was constructed in
Stevenage Stevenage ( ) is a large town and borough in Hertfordshire, England, about north of London. Stevenage is east of junctions 7 and 8 of the A1(M), between Letchworth Garden City to the north and Welwyn Garden City to the south. In 1946, Stevena ...
. This consisted of a radius hemispherical dome whose inside surface was used as a
movie screen A projection screen is an installation consisting of a surface and a support structure used for displaying a projected image for the view of an audience. Projection screens may be permanently installed, as in a movie theater; painted on the w ...
onto which terrain images were projected. A
copper vapor laser Copper vapor laser (CVL) uses vapors of copper as the lasing medium in a 4-level laser. It produces green laser light at 510.6 nm and yellow laser light at 578.2 nm. The pulse width is typically from 5 to 60 ns, and peak power from 50 ...
projected images of targets and the missiles in-flight on top of the background imagery, while a smaller helium-neon laser simulated the Rapier's tracking flare. A complete Rapier targeting unit was placed in the center of the dome, and its guidance signals were captured and sent to the simulator to update the position of the missile. The projected laser imagery was bright enough that it could be tracked by IR imagers and seekers, allowing it to be used with the updated Darkfire versions of the Rapier with their IR cameras, or other IR seeking missiles like the Stinger. This system was sold separately for use with other missile systems under the name British Aerospace Microdome.


Operation

The original Rapier took the form of a two-wheeled launcher carrying four missiles, an optical tracker unit, a generator, and a trailer of reserve missiles. The launcher consists of a vertical cylindrical unit carrying two missiles on each side, the surveillance radar dish and "
Identification Friend or Foe Identification, friend or foe (IFF) is an identification system designed for command and control. It uses a transponder that listens for an ''interrogation'' signal and then sends a ''response'' that identifies the broadcaster. IFF systems usual ...
" (IFF) system under a radome on top, the guidance computer and radar electronics at the bottom, and a prominent parabolic antenna for sending guidance commands to the missiles on the front. The search radar was of the pulsed Doppler type with a range of about . The aerial, located at the top of the launcher, rotated about once a second, looking for moving targets through their
doppler shift The Doppler effect or Doppler shift (or simply Doppler, when in context) is the change in frequency of a wave in relation to an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who d ...
. When one was located, a lamp would light up on the Selector Engagement Zone (SEZ), a box containing 32 orange lamps arranged in a circle about the size of an automobile steering wheel. The radar operator could also use switches to blank out returns from other directions, providing jamming resistance. The optical tracker unit was made up of a stationary lower section and a rotating upper section. The lower section housed the operator controls, while the upper section housed the tracking optics. The operator's optical system is a modified telescope containing a Dove prism to prevent the image 'toppling' as the optics rotate in azimuth. Using this system means that, unlike a
periscope A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. In its simplest form, it consists of an outer case with ...
, the operator does not have to move in order to track the target. The upper section also contains a separate missile tracking system that follows the operator's optics, based on a television camera optimized for the IR band. Upon detection of a target, the optical tracking system is slewed to target azimuth fed to it from the SEZ and the operator then searches for the target in elevation. The operator's field of view is selected based on the target's range: "wide" at about 20 degrees or "track" at about 4.8 degrees. When the target is found, the operator switches to "track" and uses a joystick to keep the target centred in the telescope. Once a steady track is established the missile is fired. The TV camera on the tracker is tuned to track four flares on the missile's tail. Like the operator's telescope, the TV system has two views, one about 11 degrees wide for the initial "capture", and another at 0.55 degrees for midcourse tracking. The location of the missile relative to the line-of-sight is measured using a system identical to the "chopper" system used in early
infrared homing Infrared homing is a passive weapon guidance system which uses the infrared (IR) light emission from a target to track and follow it seamlessly. Missiles which use infrared seeking are often referred to as "heat-seekers" since infrared is radi ...
missiles. Instead of being mounted on the missile, the chopper was inside the launcher, and fed an image from the tracking camera which passes through the light from the flares. The chopper generates signals that encode the angle of the missile relative to "up" and the angle out from the centre, or "error off". The simple computer in the base then calculates the control inputs needed to bring the missile into the line-of-sight and sends them to the missile through the transmitter on the launcher platform and received on small antennas on the rear of the mid-body fins. The operator simply keeps the telescope's crosshairs on the target using the joystick, and the missile automatically flies into the line-of-sight. The basic concept is very similar to the one used by most
anti-tank missile An anti-tank guided missile (ATGM), anti-tank missile, anti-tank guided weapon (ATGW) or anti-armor guided weapon is a Missile guidance, guided missile primarily designed to hit and destroy Armoured fighting vehicle, heavily armored military v ...
s, with the exception that those systems normally use small wires to send guidance information to the missile, rather than a radio link. The missile contains a warhead with a contact fuze and a single-stage solid-rocket motor that accelerates the missile to about , about Mach 2. Engagement time to the maximum effective range is about 13 seconds. Response time from the start of the target detection to missile launch is about six seconds, which has been repeatedly confirmed in live firing. The whole system and its crew are delivered by two
Land Rover Land Rover is a British brand of predominantly four-wheel drive, off-road capable vehicles, owned by multinational car manufacturer Jaguar Land Rover (JLR), since 2008 a subsidiary of India's Tata Motors. JLR currently builds Land Rovers ...
s designated the ''Fire Unit Truck'' (FUT) and the ''Detachment Support Vehicle'' (DSV). Royal Artillery batteries comprised three troops each of four fire units, while RAF Regiment squadrons had eight fire units. By 1980, each Royal Artillery fire unit consisted of a 24-volt, 101 FC 1 tonne Land Rover towing the Rapier Launcher and carrying four missiles on board, a , 3/4 ton, 24 V FFR (Fitted For Radio) Land Rover towing a 1-ton Missile Supply Trailer (MST), containing up to 10 further missiles. Blindfire radar (see below) was only provided for a third of fire units in British Army service, but for all fire units in the RAF Regiment.


Blindfire radar, FSA

Although accurate and simple to use, the original Rapier system clearly suffered from a lack of all-weather capability. To address this need, BAC started work on a separate radar guidance unit, primarily to improve foreign sales. This led to the introduction of the Marconi DN 181 "Blindfire" radar in 1970, the first examples being sold to the Iranian Army in 1973. The British Army did not purchase the Blindfire system until 1979, entering service with Rapier "Field Standard A" (FSA). The RAF Regiment had 27 Squadron operational with Blindfire at RAF Leuchars by 1979, and was in the process of bringing all the RAF Regiment GBAD (Ground Based Air Defence) Squadrons into line. By 1997 more than 350 Blindfire radars had been produced. To ensure accuracy, Blindfire used a very narrow "pencil" beam and tracks both the target and missile. To allow the operator to monitor the Blindfire system when it was tracking the target, the existing optical tracker follows the Blindfire radar, although it is possible for the optical tracker to be manually "laid on" a second target whilst the Blindfire engages the first. The Blindfire trailer carries its own generator unit, and is towed by a third Land Rover (a 12 V winch-equipped 101 FC) with the designation ''Tracking Radar Tractor'' (TRT).


Tracked Rapier

With sales to
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
came the additional requirement for a fully-mobile version of Rapier to protect the Chieftain tanks being supplied on a UK MOD contract. BAC responded by adapting the Rapier system to fit on the M548, a cargo-carrier version of the ubiquitous M113. Development started in 1974 as "Tracked Rapier", with the first public showing at the 1977
Paris Air Show The Paris Air Show (french: Salon international de l'aéronautique et de l'espace de Paris-Le Bourget, Salon du Bourget) is a trade fair and air show held in odd years at Paris–Le Bourget Airport in north Paris, France. Organized by the French ...
as a static display unit. The initial proposal for the system was to simply mount the towed launcher, less its running gear, and its petrol generator set on the flatbed of the M548 carrier. When this was shown to Mr. G.R. Jefferson, the GW Managing Director, he was not very impressed. Aware of the amount of money available, he required a much more extensive change. Greville Beale and Adrian Pollicutt led the development of a significantly different arrangement which was produced in a short period. This included significant changes to the M548 vehicle to armour the vehicle, now designated RCM 748, and to incorporate a new diesel-powered generator set using the Coventry Climax H 30 engine, also used as the auxiliary power unit in the Chieftain tank. The majority of the electronic equipment in the launcher was not changed significantly from that used in the towed version. However, a completely redesigned armoured launcher with the capability of loading eight missiles was produced which was mounted via anti-vibration mounts to the flatbed of the vehicle. The armoured cab was provided with pan-climatic heating/cooling and NBC protection. The optical tracker was placed inside the armoured cab of the vehicle, elevating through the roof for operation. The tracker was operated from the right side of the crew cabin, while on the left were the driver and tactical controller who was also provided with a helmet-mounted sight, allowing him to lay on the tracker to a visual target. From moving to firing took only 30 seconds, a tremendous improvement over Towed Rapier, which required at least 15 minutes to unlimber, cable-up and align. A further difference between Towed and Tracked Rapier was that the Tracked Rapier launcher had eight (protected) missile rails compared with the four of the towed system, enhancing firepower and reducing re-supply requirements. It was also air-portable, ready to deploy on landing, in
C-130 The Lockheed C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed (now Lockheed Martin). Capable of using unprepared runways for takeoffs and landings, the C-130 was originally desig ...
aircraft. There was no room for Blindfire on a single RCM748 vehicle, so this was instead towed or was to be carried on a separate modified M548/RCM748. Feeding data to the control system in the firing unit again required setup time to connect the two pieces of equipment. The system had not yet been fully developed when the Shah fell from power in 1978. The vehicles were later purchased by the British Army as part of a Fixed-price Develop and Supply contract. The first production Tracked Rapier was accepted on time and to cost at Wellington Barracks in early 1981, and entered service with ''11 (Sphinx) Air Defence Battery'', of 22 Air Defence Regiment,
Royal Artillery The Royal Regiment of Artillery, commonly referred to as the Royal Artillery (RA) and colloquially known as "The Gunners", is one of two regiments that make up the artillery arm of the British Army. The Royal Regiment of Artillery comprises t ...
in 1983 in
Napier Barracks Shorncliffe Army Camp is a large military camp near Cheriton in Kent. Established in 1794, it later served as a staging post for troops destined for the Western Front during the First World War. History The camp was established in 1794 when t ...
near
Dortmund Dortmund (; Westphalian nds, Düörpm ; la, Tremonia) is the third-largest city in North Rhine-Westphalia after Cologne and Düsseldorf, and the eighth-largest city of Germany, with a population of 588,250 inhabitants as of 2021. It is the la ...
. After initially entering service at Towed FSB1 standard, with planar array radar and the 'Pointing Stick', the Tracked Rapiers were upgraded, with the latest version included a Thermal-imaging enhanced tracker which enabled single vehicle 24 hour operation without the need for the Blindfire unit. A modified M548 Missile Resupply Vehicle carried replacement missiles, a relief crew, and additional field kits, rations and water. A further M548 was configured as a REME Forward Area Support team with test facilities and spares. During the
Gulf War The Gulf War was a 1990–1991 armed campaign waged by a 35-country military coalition in response to the Iraqi invasion of Kuwait. Spearheaded by the United States, the coalition's efforts against Iraq were carried out in two key phases: ...
, 12 and 16 Regiment Royal Artillery tracked batteries, quickly fitted with sat-nav for desert use, combined to provide Tracked Rapier support to deployed armoured regiments. Tracked Rapier was retired in the early 1990s, due to manning limitations when the Towed FSC version entered service. It has since been replaced by
Starstreak missile Starstreak is a British short-range surface to air missile that can be used as a man-portable air-defence system (MANPADS) or in heavier systems, manufactured by Thales Air Defence (formerly Shorts Missile Systems), in Belfast, Northern Ireland. I ...
launchers mounted on the Alvis Stormer.


FSB

Shortly after introducing FSA, "Field Standard B" (FSB) added a number of basic upgrades. Additionally, the search radar was upgraded to be easily shut down in case of an anti-radiation missile attack. FSB included lessons from the Falklands campaign, notable the 'pointing stick' that enabled the detachment commander of a fire unit to point the aiming unit at a target.


Laserfire

With the range of upgrades and new components, the original low-cost Rapier system was gone. In order to address international market requirements for a lower-cost system, BAC started development of the "Rapier Laserfire" in 1982. Laserfire replaced the original optical tracker unit with a new
lidar Lidar (, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. It can also be ...
(laser radar) illuminating system that is considerably smaller, allowing the entire system to be mounted on a single pallet that could itself be mounted on a truck or other flatbed vehicle. Laserfire used a millimetric Doppler radar. Due to its very high frequency of operation and ability to transform its beamshape from narrow azimuth and high elevation to wide azimuth and narrow elevation, Laserfire was able to detect helicopters hovering or travelling at low altitude and in areas of high clutter by detecting the movement of the helicopter's rotor blades. Initial engagement is similar to the original Rapier, but the target was illuminated and automatically tracked by a high power YAG:Nd laser. After the missile was launched the laser alternately illuminated the target and missile to determine their locations, and guidance was sent to the missile as normal (see
laser guidance Laser guidance directs a robotics system to a target position by means of a laser beam. The laser guidance of a robot is accomplished by projecting a laser light, image processing and communication to improve the accuracy of guidance. The key ide ...
). Laserfire thus represented a fairly major upgrade to the original optical system, allowing semi-automatic engagements, and greatly reducing operator skill and training requirements. On the downside, Laserfire no longer has the optical system of the original, which served an important second duty by allowing the aircraft to be visually identified at long range. Additionally, while the Laserfire tracking system was capable of being operated at night, target acquisition was optical, like the original Rapier.


Darkfire

In 1985 development started on a new tracker that replaced the original optical system with a new IR thermal imager system to improve its abilities, especially at night. This version was known as "Rapier Darkfire" for this reason. Trials of the new system started in 1987, and were deployed operationally in 1990 as "Field Standard B2" (FSB2), the earlier upgrades retroactively becoming FSB1. This system was also known as "Rapier 90". Cooling for the imager was provided by bottles of compressed gas. FSB2 also introduced a number of improvements that greatly improved Rapier capabilities. First and foremost was the Tactical Control Console that allowed four Rapier launchers to be controlled from a central location. The launchers themselves were upgraded to carry six missiles instead of four, improving battery capacity. Finally, the search radar was updated to use a new
planar array radar The planar array radar is a type of radar that uses a high-gain planar array Antenna (radio), antenna. Operation A fixed delay is established between horizontal arrays in the elevation plane. As the frequency is changed, the phase front across ...
, although its capabilities remained generally the same as the earlier model.


Missile upgrades

In 1988 tests started on an improved warhead using a proximity fuze, in order to give Rapier capability against smaller targets that would be difficult to hit directly, notably high-speed remotely piloted vehicles. Serial production of Mk. 1E began in 1989. In 1992 the Army signed a contract to upgrade all Rapier systems to an enhanced version. A Mark 2 missile variant commenced development in 1986 culminating in a complete re-design which entered service in the mid-1990s. Along with a further upgrade of the proximity fuze, the new missile incorporated (then) state-of-art technologies including: Von Karman supersonic aerodynamic profile; composite propellant, with a two-stage shaped burn and laminated body solid rocket motor; ceramic substrate surface mount PCBs; completely new electronic systems and software; both analogue and digital proprietary ASICs; highly ECM resistant front end and command link with redundant encoding; fully Digital Autopilot incorporating Kalman state filtering; inertial navigation comprising ring-laser roll and rate gyroscope; Kapton ribbon cabling. The missile warhead is available in two versions, the Mk. 2A for the normal anti-aircraft role, and the Mk. 2B, which includes a
shaped charge A shaped charge is an explosive charge shaped to form an explosively formed penetrator (EFP) to focus the effect of the explosive's energy. Different types of shaped charges are used for various purposes such as cutting and forming metal, init ...
warhead and dual fuzes, and which is useful against light armour as well.


Rapier 2000

In 1992, shortly after the introduction of Rapier 90, another major upgrade series started at MBDA (previously Matra BAe Dynamics). Emerging as "Rapier 2000", or "Field Standard C" (FSC) in British service, the system reached its ultimate form. Development of the FSC system began at the end of the 1980s and the systems first entered service in 1996. By this time the Cold War was over and British air defence capabilities were significantly reduced, with fewer and smaller batteries, albeit every fire unit with Blindfire. There is also an export version of this version, known as ''Jernas''. Malaysia is the first export customer for Jernas. FSC was effectively a new system, although Blindfire was little changed and it could fire both Mk 1 and Mk 2 missiles. The Surveillance radar was removed from the launcher and became a separate element and each launcher now carried eight missiles. With the missiles increasingly relying on radar guidance since the introduction of Blindfire, it made sense to upgrade the original search radar to something much more modern. This was supplied by the Alenia Marconi "Dagger", a 3D
pulse doppler radar A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity. It combines the features of pulse radars and ...
with an integrated Cossor
IFF Mark 10 IFF Mark X was the NATO standard military identification friend or foe transponder system from the early 1950s until it was slowly replaced by the IFF Mark XII in the 1970s. It was also adopted by ICAO, with some modifications, as the civilian air ...
system. Dagger is mounted on its own trailer, so the radome on top of the launcher unit was no longer needed. In its place, a much more modern optical tracking system was added. The new tracker used a
Stirling-cycle The Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices. This includes the original Stirling engine that was invented, developed and patented in 1816 by Robert Stirling with help from his brother, an en ...
cooler instead of compressed gas bottles. The use of much smaller electronics greatly reduced stack height of the whole launcher, allowing an additional two missiles to be added, for a total of eight. In operation, the Rapier 2000 is similar to earlier Blindfire-equipped systems. Targets are acquired visually or through the Dagger radar, and then the Blindfire and optical tracker are slewed onto the target. The optical system can be used solely to track the missile, or it can be used for all guidance, like the original Rapier. In either case the engagement is entirely automatic, with no operator guidance needed. The optical system can also be used as a search system, seeking out IR sources, allowing radar-quiet operation. In 2006 a Ministry of Defence study in Ground Based Air Defence recommended further reductions, based on a reduced air threat and the improved air defence capabilities afforded by the Typhoon fighter. These included removing the role from the RAF Regiment as a measure to preserve Royal Artillery units in the face of significant cuts to the Army. Nevertheless, the Royal Artillery units were placed under command of the HQ 1 Group RAF (within HQ Air Command) and the
Joint Ground Based Air Defence Headquarters The Joint Ground Based Air Defence Headquarters or JtGBAD HQ was a joint (non-deployable), force-generating British military formation under the operational command of RAF Air Command, sitting under No.1 Group. It was formed circa 2000 and disba ...
was formed.


Combat history

The first known use of a Rapier in combat was in December 1974 during the Second Iraqi–Kurdish War when it shot down an Ilyushin Il-76MD belonging to the Iraqi Air Force. The missile belonged to the Iranian army, but it was stationed inside Iraq to protect the Kurdish military headquarters. It was fired by a British crew, which seems to have been under contract to either the Iranian government or possibly the missile's manufacturer,
BAC BAC or Bac may refer to: Places * Bac, a village in Montenegro * Baile Átha Cliath, Irish language name for Dublin city. * Bîc River, aka ''Bâc River'', a Moldovan river * Baç Bridge, bridge in Turkey * Barnes County Municipal Airport (ICAO a ...
. A number of years after the Shah was deposed in 1978, during informal contact with senior members of the Iranian army they indicated to a UK support organisation that they had continued to operate the initial batch of 30 launchers that had been delivered prior to the Shah's removal and that they had intercepted and destroyed a number of invading aircraft, significantly more than were engaged in the Falkland activities. In April 1982, the original Rapier was deployed during the
Falklands War The Falklands War ( es, link=no, Guerra de las Malvinas) was a ten-week undeclared war between Argentina and the United Kingdom in 1982 over two British dependent territories in the South Atlantic: the Falkland Islands and its territorial de ...
when T Battery of the
12th Regiment Royal Artillery 12 Regiment Royal Artillery is a regiment of the Royal Artillery in the British Army. It currently serves in the air defence role, and is equipped with the Starstreak (missile), Starstreak missile. History The regiment was established in 1947 w ...
joined
3 Commando Brigade 3 Commando Brigade (3 Cdo Bde), previously called the 3rd Special Service Brigade, is a commando formation of the British Armed Forces. It is composed of the Royal Marine Commandos, alongside commando qualified sailors, soldiers and airmen f ...
as part of the Falklands Task Force, landing at San Carlos on 21 May. Their task was to provide air defence cover for a Harrier landing and re-fuelling pad built on the outskirts of Port San Carlos. (T Battery's sister battery,
9 (Plassey) Battery 9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the Brahmi numerals, beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Ksh ...
, was not deployed on the islands until after the conflict had ended.) 63 Squadron RAF Regiment, coincidentally the first unit to have been equipped with Rapier, was deployed at San Carlos bay on 1 June, later deploying around Stanley. There were many siting problems which prevented Rapier from operating efficiently, which led to it not being particularly effective in terms of number of 'kills'; but its presence acted as a deterrent, especially after the deployment of Blindfire systems around Port San Carlos. From an engineering perspective, the fragile nature of the launchers was well known before the conflict, exacerbated by the sinking of the with almost all of the missiles spares. The intermittent unserviceability of fire unit 32 alpha at Fitzroy was one of many factors that contributed to the success of the bombing of the . Early post-war reports were favourable, indicating 14 kills and 6 probables. Later analysis was less rosy, indicating as few as four enemy aircraft were downed. Only one Argentine aircraft, a Dagger A of FAA Grupo 6, can be confirmed as a Rapier kill, when Lt Bernhardt's aircraft was destroyed on 29 May 1982. The pilot was killed. The other three, an A-4B Skyhawk of FAA Grupo 5 on 23 May and two A-4C Skyhawk of FAA Grupo 4 on 24 May and 25 May 1982, were subjected to the full force of the San Carlos Air Defences, with claims going to Sea Wolf, Sea Cat, Blowpipe and
small arms A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in different countries (see Legal definitions). The first firearms originated in 10th-century China, when bamboo tubes c ...
, as well as T Battery. The official history of the war states "Within the total, only five Argentine aircraft might have been shot down by Rapier, and, as originally noted by Ethell and Price, only one of these was certain, with two probables and two possibles. Similar discrepancies arose over other weapons systems, notably Blowpipe (one confirmed against nine claimed and two probables) and Sea Cat (zero to one against eight claimed and two probables). This confirmation that
MoD Mod, MOD or mods may refer to: Places * Modesto City–County Airport, Stanislaus County, California, US Arts, entertainment, and media Music * Mods (band), a Norwegian rock band * M.O.D. (Method of Destruction), a band from New York City, US ...
had exaggerated, however unwittingly, the capabilities of Rapier was deemed to be political, as it was observed that if this assessment became widely known it 'could have serious adverse effects on sales' prospects for Rapier, which was a staple revenue-earner for BAe's Dynamic Group." The main problems were a lack of range, and the decision to omit a
proximity fuze A proximity fuze (or fuse) is a Fuze (munitions), fuze that detonates an Explosive material, explosive device automatically when the distance to the target becomes smaller than a predetermined value. Proximity fuzes are designed for targets such ...
, an attribute which required the operator to strike the target aircraft directly with the missile. Rapier also suffered from problems with the IFF system and suffered from interference with
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 ...
radar. Rapiers were used during the
2012 Summer Olympics The 2012 Summer Olympics (officially the Games of the XXX Olympiad and also known as London 2012) was an international multi-sport event held from 27 July to 12 August 2012 in London, England, United Kingdom. The first event, the ...
to provide air-defence security for the games. Rapier systems were placed at four sites: (
Blackheath Common Blackheath Common is an area of of heathland in Surrey, England, near the village of Albury in the borough of Waverley. It is part of the Surrey Hills Area of Outstanding Natural Beauty, and much of the common is a designated Site of Special S ...
; William Girling Reservoir in Enfield; Oxleas Meadow, Shooter's Hill; and Barn Hill in Epping Forest), with
Starstreak missile Starstreak is a British short-range surface to air missile that can be used as a man-portable air-defence system (MANPADS) or in heavier systems, manufactured by Thales Air Defence (formerly Shorts Missile Systems), in Belfast, Northern Ireland. I ...
s at two other sites.


Replacement

At the DSEI conference in September 2007 it was announced the UK MoD was funding a study by MBDA UK to investigate a replacement for Rapier which was scheduled to leave service about 2020. The
Common Anti-Air Modular Missile The CAMM (Common Anti-Air Modular Missile) is a family of surface-to-air missiles developed by MBDA UK for the United Kingdom. CAMM shares some common features and components with the ASRAAM air-to-air missile, but with updated electronics and an ...
(CAMM), would share components with the ASRAAM missile in service with the RAF. In July 2021 it was reported that
Sky Sabre The CAMM (Common Anti-Air Modular Missile) is a family of surface-to-air missiles developed by MBDA UK for the United Kingdom. CAMM shares some common features and components with the ASRAAM air-to-air missile, but with updated electronics and an ...
had started acceptance trials and training with the
7th Air Defence Group 7th Air Defence Group (7 AD Gp) is a formation of the British Army and part of 3rd (United Kingdom) Division. It is responsible for all the army's ground based air defence assets. All of the organisation's subordinate units are drawn from the Roy ...
of the Royal Artillery. It was planned to deploy the system in the Falkland Islands in "late summer/early autumn".


Museums

An example is on display under cover in a hangar in
IWM Duxford Imperial War Museum Duxford is a branch of the Imperial War Museum near Duxford in Cambridgeshire, England. Britain's largest aviation museum, Duxford houses the museum's large exhibits, including nearly 200 aircraft, military vehicles, artill ...
. Another example is on display at the
City of Norwich Aviation Museum The City of Norwich Aviation Museum is a volunteer-run museum and charitable trust dedicated to the preservation of the aviation history of the county of Norfolk, England. The museum is located on the northern edge of Norwich International ...
. An FSB standard Launcher, Tracker and S.E.Z. is on display in the Aerospace Bristol museum at Filton Bristol. A Rapier 2000 is on display at the National Army Museum London


Operators

; *
Islamic Republic of Iran Army , founded = , current_form = ( Islamic Republic) , disbanded = , branches = , headquarters = Khatam-al Anbiya Central Headquarters, Tehran , website = , commander-in-chief = Maj. Gen ...
; *
Kenyan Air Force The Kenya Air Force (KAF) or sw, Jeshi la Wanahewa is the national aerial warfare service branch of the Republic of Kenya. The main airbase operating fighters is Laikipia Air Base in Nanyuki, while Moi Air Base Moi Air Base, formerly know ...
; *
Malaysian Army The Malaysian Army ( ms, Tentera Darat Malaysia; Jawi: تنترا دارت مليسيا) is the land component of the Malaysian Armed Forces. Steeped in British Army traditions, the Malaysian Army does not carry the title ‘royal’ () as do th ...
– 15 launchers ; *
Royal Air Force of Oman The Royal Air Force of Oman ( ar, سلاح الجو السلطاني عمان, Silāḥ al-Jaww as-Sulṭāniy ‘Umān or RAFO) is the air arm of the Armed Forces of Oman. History Sultan of Oman's Air Force era The Sultan of Oman's Air Force ...
; *
Swiss Air Force The Swiss Air Force (german: Schweizer Luftwaffe; french: Forces aériennes suisses; it, Forze aeree svizzere; rm, Aviatica militara svizra) is the air component of the Swiss Armed Forces, established on 31 July 1914 as a part of the army and ...
; * Turkish Air Force – 86 launchers, modernized in Turkey. To be replaced by HISAR-A in 2021. ; * United Arab Emirates Army ; *
British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...
– 124 launchers, serve with
Royal Artillery The Royal Regiment of Artillery, commonly referred to as the Royal Artillery (RA) and colloquially known as "The Gunners", is one of two regiments that make up the artillery arm of the British Army. The Royal Regiment of Artillery comprises t ...
; * Zambian Air Force


Former operators

; *
Australian Army The Australian Army is the principal Army, land warfare force of Australia, a part of the Australian Defence Force (ADF) along with the Royal Australian Navy and the Royal Australian Air Force. The Army is commanded by the Chief of Army (Austral ...
; *
Indonesian Army The Indonesian Army ( id, Tentara Nasional Indonesia Angkatan Darat (TNI-AD), ) is the land branch of the Indonesian National Armed Forces. It has an estimated strength of 300,000 active personnel. The history of the Indonesian Army has its ...
; * Imperial Iranian Air Force *
Imperial Iranian Army , founded = , current_form = ( Islamic Republic) , disbanded = , branches = , headquarters = Khatam-al Anbiya Central Headquarters, Tehran , website = , commander-in-chief = Maj. Ge ...
; *
Iraqi Armed Forces The Iraqi Armed Forces ( ar, القوات المسلحة العراقية romanized: ''Al-Quwwat Al-Musallahah Al-Iraqiyyah'') (Kurdish languages, Kurdish: هێزە چەکدارەکانی عێراق) are the military forces of the Iraq, Republic ...
– Captured from Iran during the
Iran–Iraq War The Iran–Iraq War was an armed conflict between Iran and Iraq that lasted from September 1980 to August 1988. It began with the Iraqi invasion of Iran and lasted for almost eight years, until the acceptance of United Nations Security Council ...
, phased out after 2003 ; *
Libyan Air Force The Libyan Air Force ( ar, القوات الجوية الليبية) is the branch of the Libyan Armed Forces responsible for aerial warfare. In 2010, before the Libyan Civil War, the Libyan Air Force personnel strength was estimated at 18,000 ...
; *
Republic of Singapore Air Force The Republic of Singapore Air Force (RSAF) is the aerial service branch of the Singapore Armed Forces (SAF) responsible for controlling and defending the airspace of the country, and providing air support to the Army and Navy. It was establish ...
- Operated 12 launchers in 1981. Replaced by SPYDER missile system from 2011.


References


Citations


Bibliography

* *


External links


Rapier/Jernas missile information on BAe website

Rapier/Jernas missile information on MBDA company website
* * Oerlikon {{DEFAULTSORT:Rapier (Missile) Surface-to-air missiles of the United Kingdom British Aircraft Corporation Military equipment introduced in the 1970s