FV101 Scorpion

Last updated

FV101 Scorpion
Scorpion CRVT (4119399295).jpg
Irish Army Scorpion CVR(T)
Type Reconnaissance vehicle, light tank
Place of origin United Kingdom
Service history
In service1973–present
Used by Operators
Wars Iran–Iraq War [1]
Falklands war
1989 Philippine coup d'état attempt
Gulf War
Zamboanga City crisis
Production history
Manufacturer Alvis Vehicles, Coventry, England
No. builtc. 3,000 (1,500 for UK, c. 1,500 exported) [2]
VariantsScorpion 90
Specifications
Mass17,800 lb (8.074 tonnes)
Length5.288 m (17 ft 4.2 in) [3]
Width2.134 m (7 ft 0 in) [3]
Height2.102 m (6 ft 10.8 in) [3]
Crew3 [3]

Armour Aluminium armour, Cast and 1318b plate
Main
armament
ROF 76mm L23A1 gun
90mm Cockerill Mk3 M-A1 gun (in Scorpion 90) [3]
Secondary
armament
Coaxial 7.62 mm L43A1 machine gun [3]
EngineCummins BTA 5.9-litre (diesel) [3]
190 hp (140 kW)
Power/weight22.92 hp (17.3 kW) / tonne [3]
TransmissionSelf Change Gears TN15X [3]
Suspension Torsion-bar
Operational
range
756 km (470 mi) [3]
Maximum speed 72.5 km/h (45.0 mph) [3]

The FV101 Scorpion is a British armoured reconnaissance vehicle and light tank. It was the lead vehicle and the fire support type in the Combat Vehicle Reconnaissance (Tracked), CVR(T), family of seven armoured vehicles. Manufactured by Alvis, it was introduced into service with the British Army in 1973 and was withdrawn in 1994. [4] [5] More than 3,000 were produced and used as a reconnaissance vehicle or a light tank.

Contents

It held the Guinness world record for the fastest production tank, recorded doing 82.23 km/h (51.10 mph) at the QinetiQ vehicle test track in Chertsey, Surrey, on 26 January 2002. [6]

History

The Combat Vehicle Reconnaissance (Tracked) family of vehicles came from a British Army requirement for an armoured fighting vehicle that could be rapidly airlifted to trouble spots. The 'Armoured Vehicle Reconnaissance' was supposed to carry both a gun and an anti-tank missile but it was not possible to design an air portable vehicle to the specification. The limits on both size and weight led to the use of aluminium alloy for the hull and an adapted car engine for power. The anti-tank capability was given to a dedicated vehicle, Striker, while what became Scorpion would use a 76 mm gun in the fire support role.

In 1967, Alvis was awarded the contract to produce 30 CVR(T) prototypes. Vehicles P1–P17, the Scorpion prototypes, were delivered on time and within the budget. [7] After extensive hot and cold weather trials in Norway, Australia, Abu Dhabi and Canada, the Scorpion was accepted by the British Army in May 1970, with a contract for 275, which later rose to 313 vehicles. [8] The first production vehicles were completed in 1972 and the first British regiment to be equipped with the Scorpion were the Blues and Royals of the Household Cavalry in 1973. [8] [9]

Alvis built more than 3,000 Scorpion vehicles for the British Army, Royal Air Force Regiment and the export market. All of the CVR(T) vehicles were to be air-portable; and two Scorpions could be carried in a Lockheed C-130 Hercules. Another requirement of the CVR(T) project was the low ground pressure, similar to that of a soldier on foot; this would serve it well in the boggy conditions of the Falklands War.

Armament

L23A1 gun
Place of origin United Kingdom
Service history
In service1973–present
Production history
ManufacturerRoyal Ordnance
Specifications
Length2.157 m (7 ft 0.9 in)

Calibre 76 mm (3.0 in)
Elevation +35 degrees/-10 degrees
Rate of fire 6 rounds per minute
Effective firing range2,200 m (2,400 yd)
The Scorpion/Scimitar in the US Army field recognition manual. Scorpion recog.gif
The Scorpion/Scimitar in the US Army field recognition manual.

The Scorpion was armed with the low velocity 76 mm L23A1 gun, which could fire high-explosive, HESH, smoke and canister rounds. Storage was provided for 40 or 42 rounds. A 7.62 mm coaxial L7 GPMG (3,000 rounds carried) was also fitted, as were two multi-barrelled smoke grenade dischargers, one on each side of the turret. [3] The main armament has an elevation of 35 degrees and a depression of 10 degrees; the turret has a full 360-degree traverse. [10] The traverse was however hand-cranked, a cost-saving feature that made the turret relatively slow and laborious to traverse relative to other vehicles of its type. [11] This gun was later deemed to be unsatisfactory, as RAF testing showed that the lack of a fume extraction system caused toxic fumes to enter the fighting compartment, endangering the crew's health. [11]

Engine

The original engine was the Jaguar J60 Mk 100b 4.2-litre petrol engine, [12] which was replaced by a Cummins or Perkins diesel engine. [3] The maximum speed was about 50 mph (80 km/h) and it could accelerate from standing to 30 mph (48 km/h) in 16 seconds. The maximum speed on water (with the flotation screen deployed) was 3.6 mph (5.8 km/h). [13] The Irish engineering company IED replaced the Jaguar engine in Irish Army Scorpions with a Steyr M16 TCA HD engine (6-cylinder, 145 kW), making the Scorpion more powerful and more reliable in critical environments. [14] [ failed verification ]

Armour

The FV101 was a very light armoured vehicle, weighing in at a mere 8 tonnes. This meant some compromises had to be made on protection. The vehicle had 12.7 mm [15] of sloped aluminium armour, [16] [17] giving an average effective thickness of 25 mm. [18]

The FV101 had all-around protection from shell fragments and 7.62 mm rounds, [19] and the heavily sloped frontal arc was designed to be resistant to 14.5 mm rounds fired from 200 m (660 ft). [20] [21] The initial manufacture of the aluminium armour resulted, after time and effects of the environment, in failure; "Stress Corrosion Cracking" (SCC) which seriously affected all early builds.

Other systems

The vehicle was fitted with a nuclear, biological, chemical protection system, image intensification sights for gunner and driver and a floatation screen. [3] A commode [ clarification needed ] was located under the commander's seat. An internal water tank and a boiling vessel for cooking and heating water were also provided. [22]

Service history

The Scorpion was or is used by the armed forces of Belgium, Botswana, Brunei, Chile, Honduras, Iran, Indonesia, Ireland, Jordan, Malaysia, New Zealand, Nigeria, Oman, Philippines, Spain, Tanzania, Thailand, Togo, the United Arab Emirates, and Venezuela. [3] The Iranian army acquired 250 Scorpions in the late 1970s and a number of them are still in use after being refurbished locally as the Tosan tank. The Scorpion was on occasion deployed to main UK airports as a measure against possible terrorist threats, e.g., Operation Marmion at Heathrow Airport in 1974. [23] [ failed verification ] Similar operations in 2003 used the then-current Scimitar.

Combat use

Scorpion advancing across the desert during the first Gulf War. FV101 Scorpion Iraq 1991.jpg
Scorpion advancing across the desert during the first Gulf War.

B Squadron, Blues and Royals were airlifted and deployed into the Akrotiri and Dhekelia Sovereign Base areas, during the Turkish invasion of Cyprus 1974.

Two troops from B Squadron, Blues and Royals served in the Falklands War. One troop was equipped with four Scorpions, the other with four FV107 Scimitars. These were the only armoured vehicles used in action by the British Army during the conflict. [24] Scorpions also served in the Gulf War. The 16th/5th The Queen's Royal Lancers deployed in the first Gulf War (Operation Granby) using all variants of the CVR(T) range carrying out the role of force reconnaissance for the British spearhead towards Iraq, operating forward of other official green army units. The 1st The Queen's Dragoon Guards, a reconnaissance regiment, had 32 and the close reconnaissance troops of the armoured regiments each had eight. [25] They were also used by No. 1 Squadron RAF Regiment, which was attached to the British 1st Armoured Division.

Foreign users

Some small armies, such as the Botswana Defence Force, and some larger armies such as the Iranian Army and Nigerian Army, continue to use the Scorpion, in some cases up-armed with the 90 mm Cockerill.

The Iranian army used its Scorpion tanks in the Iran–Iraq War, with various degrees of success. Early in the war, Iranians used the Scorpions's "accurate fire" (alongside the Cobra attack helicopters) to hold back Iraqi 2nd Infantry Division's offensive towards the city of Ilam. [1] However, the Scorpions proved less effective when faced with Iraq's 9th Armoured Division: [1]

A second [Iraqi] column rushed to Susangerd, which it crossed without encountering any resistance, the city having apparently been left defenseless. The column continued in the direction of Hamidiyeh. It came into contact with the [Iranian] 92nd Armored Division's reconnaissance regiment, which met it with effective in-depth defense. Yet the Iranians eventually had to yield in the face of Iraqi pressure. Their Scorpions' 90 mm guns did not hold their weight against the T-62 tanks' 115 mm guns. The Iraqis thus took control of Hamidiyeh, then Bozorg.

The British government provided Iran (and Iraq) with limited parts for their Scorpions during the war: [1]

Regarding military matters, the British government imposed two strict rules: contracts signed before the war would be honored, but the sale of equipment likely to significantly increase either side's military capacities was banned. Interpreting these regulations loosely, the British government delivered both the Iranians and the Iraqis motors and spare parts for Chieftain and Scorpion tanks, which would allow the former to maintain tanks acquired under the Shah and the latter to repair tanks captured from the Iranian army.

Variants

TV15000 at Bovington Tank Museum in 2017 TV 15000 Test Rig.jpg
TV15000 at Bovington Tank Museum in 2017
M113 MRV in Puckapunyal Camp Puckapunyal-M113-MRV-1-1.jpg
M113 MRV in Puckapunyal Camp

Turret only

During the late 1960s, as a result of its experiences in the Vietnam War, the Australian Army perceived a need for a hybrid, tracked fire support and reconnaissance vehicle.

Experiments in which existing M113 APCs were fitted with Saladin (not Scorpion) turrets, wielding a 76 mm M1 gun, were successful. The vehicle entered service as the M113A1 FSV (Fire Support Vehicle).

A very similar, subsequent vehicle, attaching the turret from the Scorpion to the M113, was also known as the FSV. (This re-purposing of the turret was to be the only use of any part of the Scorpion by the ADF.) Entering service in 1976, it was later redesignated the M113A1 Medium Reconnaissance Vehicle (MRV). Its development also obviated interest in acquiring brand new, purpose-built vehicles (such as a variant of the UK CVR(T) or the M2/M3 Bradley). All of these vehicles were retired in 1996. [28]

Operators

Map of FV101 operators in blue with former operators in red FV101 operators.png
Map of FV101 operators in blue with former operators in red

Current operators

Indonesian Scorpion 90 on IIMS 2014 Scorpion TNI-AD.jpg
Indonesian Scorpion 90 on IIMS 2014
Philippine Army FV101 Scorpion PA Scorpion CRVT.JPG
Philippine Army FV101 Scorpion

Former operators

See also

Related Research Articles

<span class="mw-page-title-main">Tank destroyer</span> Type of armoured fighting vehicle designed to engage and destroy enemy tanks

A tank destroyer, tank hunter or tank killer is a type of armoured fighting vehicle, predominantly intended for anti-tank duties. They are typically armed with a direct fire artillery gun, also known as a self-propelled anti-tank gun, or missile launcher, also called an anti-tank missile carrier. The vehicles are designed specifically to engage and destroy enemy tanks, often with limited operational capacities.

<span class="mw-page-title-main">Armored car (military)</span> Wheeled armoured fighting vehicle

A military armoredcar is a wheeled armored fighting vehicle, historically employed for reconnaissance, internal security, armed escort, and other subordinate battlefield tasks. With the gradual decline of mounted cavalry, armored cars were developed for carrying out duties formerly assigned to light cavalry. Following the invention of the tank, the armored car remained popular due to its faster speed, comparatively simple maintenance and low production cost. It also found favor with several colonial armies as a cheaper weapon for use in underdeveloped regions. During World War II, most armored cars were engineered for reconnaissance and passive observation, while others were devoted to communications tasks. Some equipped with heavier armament could even substitute for tracked combat vehicles in favorable conditions—such as pursuit or flanking maneuvers during the North African campaign.

<span class="mw-page-title-main">M24 Chaffee</span> American light tank

The M24 Chaffee was an American light tank used during the later part of World War II; it was also used in post–World War II conflicts including the Korean War, and by the French in the War in Algeria and the First Indochina War. In British service it was given the service name Chaffee after the United States Army General Adna R. Chaffee Jr., who helped develop the use of tanks in the United States armed forces. Although the M41 Walker Bulldog was developed as a replacement, M24s were not mostly removed from U.S. and NATO armies until the 1960s and remained in service with some Third World countries.

<span class="mw-page-title-main">Alvis Car and Engineering Company</span> British manufacturing company in Coventry, England

Alvis Car and Engineering Company Ltd was a British manufacturing company in Coventry from 1919 to 1967. In addition to automobiles designed for the civilian market, the company also produced racing cars, aircraft engines, armoured cars and other armoured fighting vehicles.

<span class="mw-page-title-main">Combat Vehicle Reconnaissance (Tracked)</span> Armoured fighting vehicles

The Combat Vehicle Reconnaissance (Tracked), abbreviated CVR(T), is a family of armoured fighting vehicles (AFVs) developed in the 1960s and is in service with the British Army and others throughout the world. They are small, highly mobile, air-transportable armoured vehicles, originally designed to replace the Alvis Saladin armoured car.

<span class="mw-page-title-main">FV103 Spartan</span> Armoured personnel carrier

FV103 Spartan is a tracked armoured personnel carrier. It was developed for the British Army as the APC variant of the Combat Vehicle Reconnaissance (Tracked) family. The vehicle can carry up to seven personnel, including three crew members. Armed with a single machine gun, it is almost indistinguishable from the FV102 Striker in external appearance.

<span class="mw-page-title-main">FV107 Scimitar</span> Reconnaissance vehicle

The FV107 Scimitar is an armoured tracked military reconnaissance vehicle formerly used by the British Army, until it was retired from active service in April 2023. It was manufactured by Alvis in Coventry. It is very similar to the FV101 Scorpion, but mounts a high-velocity 30 mm L21 RARDEN cannon instead of a 76 mm gun. It was issued to Royal Armoured Corps armoured regiments in the reconnaissance role. Each regiment originally had a close reconnaissance squadron of five troops, each containing eight FV107 Scimitars. Each Main Battle Tank Regiment also employed eight Scimitars in the close reconnaissance role.

<span class="mw-page-title-main">Sabre (tank)</span> Reconnaissance vehicle

Sabre is a variation of the Combat Vehicle Reconnaissance (Tracked), featuring the turret from a wheeled Fox Armoured Reconnaissance Vehicle mounted on the hull of a tracked FV101 Scorpion.

<span class="mw-page-title-main">Panhard AML</span> Armored car

The Panhard AML is an armoured car with reconnaissance capability. Designed by Panhard on a lightly armoured 4×4 chassis, it weighs an estimated 5.5 tonnes, and is thus suitable for airborne deployment. Since 1959, AMLs have been marketed on up to five continents; several variants remained in continuous production for half a century. These have been operated by fifty-four national governments and other entities worldwide, seeing regular combat.

<span class="mw-page-title-main">Humber Armoured Car</span> British armoured car

The Humber Armoured Car was one of the most widely produced British armoured cars of the Second World War. It supplemented the Humber Light Reconnaissance Car and remained in service until the end of the war.

<span class="mw-page-title-main">AEC Armoured Car</span> British heavy armoured car

AEC Armoured Car is the name of a series of British heavy armoured cars built by the Associated Equipment Company (AEC) during the Second World War.

<span class="mw-page-title-main">Ferret armoured car</span> Armoured car / Scout car

The Ferret armoured car, also commonly called the Ferret scout car, is a British armoured fighting vehicle designed and built for reconnaissance purposes. The Ferret was produced between 1952 and 1971 by the UK company Daimler. It was widely used by regiments in the British Army, as well as the RAF Regiment and Commonwealth countries throughout the period.

<span class="mw-page-title-main">Alvis Saladin</span> Armoured car

The FV601 Saladin is a six-wheeled armoured car developed by Crossley Motors and later manufactured by Alvis. Designed in 1954, it replaced the AEC Armoured Car in service with the British Army from 1958 onward. The vehicle weighed 11 tonnes, offered a top speed of 72 km/h, and had a crew of three. Saladins were noted for their excellent performance in desert conditions, and found favour with a number of Middle Eastern armies accordingly. They were armed with a 76 mm low-pressure rifled gun which fired the same ammunition as that mounted on the FV101 Scorpion.

<span class="mw-page-title-main">Alvis Stormer</span> British armoured fighting vehicle

The Alvis Stormer is a military armoured vehicle manufactured by the British company Alvis Vickers, now BAE Systems Land & Armaments.

<span class="mw-page-title-main">ASCOD</span> Austro-Spanish armoured fighting vehicle

The ASCOD armoured fighting vehicle family is the product of a cooperation agreement between Austrian Steyr-Daimler-Puch AG and Spanish General Dynamics Santa Bárbara Sistemas. Both companies are now divisions of a unit of General Dynamics. The ASCOD family includes the LT 105 light tank equipped with a 105 mm gun, a surface-to-air missile launcher, an anti-tank guided missile launcher, mortar carrier, R&R vehicle, command-and-control vehicle, ambulance, artillery observer, and the AIFV model.

<span class="mw-page-title-main">Fox armoured reconnaissance vehicle</span> Armoured car

The FV721 Fox Combat Vehicle Reconnaissance (Wheeled) (CVR(W)) was a 4 × 4 armoured car manufactured by ROF Leeds, deployed by the British Army as a replacement for the Ferret scout car and the Saladin armoured car. The Fox was introduced into service with B Squadron, 1st Royal Tank Regiment (Aliwal Barracks, Tidworth) in 1975 and withdrawn from service 1993–94.

<span class="mw-page-title-main">Light tank</span> Class of tank

A light tank is a tank variant initially designed for rapid movements in and out of combat, to outmaneuver heavier tanks. It is smaller in size with thinner armor and a less powerful main gun, tailored for better tactical mobility and ease of transport and logistics. They are primarily employed in the screening, armored reconnaissance, skirmishing, artillery observation, and supplementing landing operations in a fire support role of expeditionary forces where larger, heavier tanks are unavailable or have difficulties operating safely or efficiently.

<span class="mw-page-title-main">Reconnaissance vehicle</span> Military vehicle used for forward reconnaissance

A reconnaissance vehicle, also known as a scout vehicle, is a military vehicle used for forward reconnaissance. Both tracked and wheeled reconnaissance vehicles are in service. In some nations, light tanks such as the M551 Sheridan and AMX-13 have also been used by scout platoons. Their armament ranges from a medium machine gun to a large cannon. Modern examples are often fitted with ATGMs and a wide range of sensors.

<span class="mw-page-title-main">M113 armoured personnel carriers in Australian service</span> Australian Army armoured fighting vehicle

The M113 armoured personnel carriers are American produced military vehicles that have operated in the Australian Army since 1964. An initial pair of M113s was purchased for trials purposes in 1962. Either 817 or 840 were acquired by 1979, comprising nine different variants. A long-running modernisation program that commenced in the 1990s resulted in 431 M113s being upgraded between 2007 and 2012. All of the upgraded M113s remain in service as of 2020.

References

Citations

  1. 1 2 3 4 Razoux (2015).
  2. Staff Writer, "Alvis FV101 Scorpion: Light Armored Reconnaissance Vehicle (1973)", Military Factory, retrieved 10 October 2021
  3. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 "Scorpion". Jane's Information Group. Archived from the original on 21 February 2008. Retrieved 11 January 2009.
  4. "MV Spotlight: The Scorpion CVR(T)".
  5. "FV101 Scorpion: Keeping the Light Tank Relevant". HistoryNet. 25 February 2015. Retrieved 17 March 2018.
  6. "Fastest tank". Guinnessworldrecords.com. 26 March 2002. Retrieved 31 May 2014.
  7. Foss & Sarson (1995), p. 9.
  8. 1 2 Foss & Sarson (1995), p. 10.
  9. Foss & Sarson (1995), p. 4.
  10. Foss & Sarson, p. 14
  11. 1 2 3 "Tank Chats #109 Scorpion & TV15000". The Tank Museum. Retrieved 19 February 2021 via YouTube.
  12. Chant, Christopher (January 1987). A Compendium of Armaments and Military Hardware. ISBN   9780710207203 . Retrieved 31 May 2014.
  13. Foss & Sarson (1995), p. 12.
  14. Application Gallery Archived 20 April 2016 at the Wayback Machine : Steyr-Motors.com
  15. Thailand Army Weapon Systems Handbook.
  16. "Alvis FV107 Scimitar". militaryfactory.com. Military Factory.
  17. Bocquelet, David. "FV101 Scorpion". tanks-encyclopedia.com. Tank Encyclopedia.
  18. "FV 101 CVR(T) Scorpion". fas.org. Federation of American Scientists.
  19. "Scorpion CVRT FV101 Light tracked armoured reconnaissance vehicle". armyrecognition.com. Army Recognition.
  20. "FV101 Scorpion". military-today.com. Military Today.
  21. Cooke, Gary W. "FV101 Scorpion Combat Vehicle Reconnaissance (Tracked)". inetres.com. Inetres.
  22. Foss & Sarson (1995), p. 11.
  23. Hughes, Geraint (2011). The Military's Role in Counterterrorism: Examples and Implications for Liberal Democracies. US Army War College, Carlisle, PA: Strategic Studies Institute. p. 91. ISBN   978-1584874898. Archived from the original on 12 March 2017.
  24. Foss & Sarson (1995), p. 21.
  25. Foss & Sarson (1995), pp. 41–44.
  26. Foss & Sarson (1995), p. 37.
  27. Foss & Sarson (1995), p. 34.
  28. "50 years service for M113 - Australian Army". Archived from the original on 2 May 2016. Retrieved 20 February 2016.
  29. International Institute for Strategic Studies (2021). The Military Balance. p. 451. ISBN   9781032012278.
  30. 1 2 3 4 5 6 7 Pietrzak, Wiesław B. (November–December 2002). "Alvis Scorpion". Wojskowy Przegląd Techniczny i Logistyczny (in Polish). Warszawa: Czasopisma Wojskowe. p. 40.
  31. "SIPRI arms transfer database". Stockholm International Peace Research Institute. 17 June 2011. Archived from the original on 14 April 2010. Retrieved 21 June 2011.
  32. Dominguez, Gabriel; Cranny-Evans, Samuel (26 January 2021). "Elbit Systems awarded contract for Sabrah light tanks and direct-fire support vehicles". www.janes.com. Retrieved 29 June 2021.
  33. "Philippines awards contract for light tanks and wheeled APCs to Elbit Systems of Israel". www.armyrecognition.com. 25 October 2020. Retrieved 29 June 2021.
  34. https://verafiles.org/articles/1987-coup-the-ties-that-bind-pnoy-and-purisima
  35. "China tank deal opens old wounds for wary". Bangkok Post.
  36. "Former Equipment of Iraqi Army". Archive.org. Retrieved 17 July 2018.
  37. Mark Nash (7 June 2018). "FV101 Scorpion in Irish Service". Tank Encyclopedia. Retrieved 3 April 2019.
  38. "Scorpions to be Retired - Malaysian Defence".
  39. Isby & Kamps 1985, pp. 303.
  40. Isby & Kamps 1985, pp. 285–7.

General and cited references