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Centurion tank
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The Centurion was the primary British main battle tank of the postwar period, and has proven itself be a successful tank design for most of the postwar decades; the Centurion's success has been mainly due to its thick armour, adaptability of its chassis to other roles, and numerous upgrades. Manufacture of the Centurion began in January 1945, and six prototypes arrived in Belgium soon after the war in Europe ended in May 1945.

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The Centurion was the primary British main battle tank of the postwar period, and has proven itself be a successful tank design for most of the postwar decades; the Centurion's success has been mainly due to its thick armour, adaptability of its chassis to other roles, and numerous upgrades. Manufacture of the Centurion began in January 1945, and six prototypes arrived in Belgium soon after the war in Europe ended in May 1945. The Centurion entered its first combat in the Korean War in 1950, where it went on to provide excellent service for the British Army, supporting allied forces during the conflict. The Centurion battle tank would later see service with the Australian Armored Corps in Vietnam, where it again would provide sterling service for the allied war effort against communist forces. It would go on to be one of the most widely used tank designs, equipping armies around the world, with small numbers still in service until the 1990s. As recently as the 2006 Israel-Lebanon conflict, the Israel Defense Forces still employed heavily modified Centurions, as armoured personnel carriers and combat engineering vehicles.
History
In 1943, the Department of Tank Design was asked to produce a new design for a heavy cruiser tank under the General Staff designation A41. After a series of fairly marginal designs in the A series in the past, and bearing in mind the threat posed by the German 88 mm gun, the War Office demanded a major revision of the design requirements, specifically: increased durability, reliability, a maximum weight of 40 tons, plus the ability to withstand a direct hit from the German 88mm gun.
Tank Design responded by extending the long-travel 5-wheel suspension used on the Comet with the addition of a 6th wheel and an extended spacing between the 2nd and 3rd wheels. The Christie suspension with internal vertical spring coils was replaced by a Horstmann suspension with external horizontal springs. The hull was redesigned with welded sloped armour, and featured a partially cast turret mounting the highly regarded 17 pounder main gun and a 20mm Polsten cannon. With a Rover-built Rolls-Royce Meteor engine, a version of the Rolls-Royce Merlin, the new design would have excellent performance.
Shortly after the programme commenced, it became clear that the requirement to withstand 88 mm artillery would be impossible to fill with the given weight requirements. The original specification had been set so that the A41 could be carried on the existing Mark I and Mark II transport trailers, both of which were limited to a 40 ton load. The War Ministry decided it would be wiser to build new trailers than hamper what appeared to be a superb design. Even before prototypes of the original 40 ton design were completed, the design of a heavier version was well underway. The new version carried armour equal to the heaviest infantry tanks, and cross-country performance superior to even the early cruiser tanks. The A41 was the first British tank that could "do it all", leading to the new designation, universal tank.
Prototypes of the original 40 ton design, the Centurion Mark I, had 76 mm of armour in the front glacis, thinner than the then current infantry tank designs like the Churchill which had 101 mm, but the glacis plate was highly sloped and so the effective thickness of the armour was very high - a design feature shared by other effective designs such as the German Panther tank and Soviet T-34. The turret was extremely well armoured at 152 mm. It was, however, extremely mobile and able to easily outperform the Comet in most tests. The uparmoured Centurion Mark II soon arrived, featuring a new 118 mm thick glacis and the sides and rear increased from 38 mm to 51 mm. Only a handful of Mk.I's had been produced when the Mk.II replaced it on the production lines. Full production began in November 1945 with an order of 800 with production lines at Leyland, the Royal Ordnance Factories at Leeds and Woolwich, and Vickers at Elswick. The tank entered service in December 1946 with the 5th Royal Tank Regiment.
Soon after introduction, Royal Ordnance finished work on the extremely powerful 20 pounder (84mm) tank gun. By this point the usefulness of the 20 mm Polsten had been called into question, so it was replaced with a BESA machine gun in a completely cast turret. The new Centurion Mark III also featured a fully automatic stabilization system for the gun, allowing it to fire accurately while on the move, dramatically improving battlefield performance. Production of the Mk.3 began in 1948. The Mk.3 was so much more powerful than the Mk.1 and Mk.2 that the earlier designs were removed from service as soon as new Mk.3's arrived, and converted into the Centurion ARV Mark 1 armoured recovery vehicle for REME use or upgraded to mk.3 standards. Improvements introduced with the Mk.3 included a more powerful version of the engine, a new gun sight and gun stabilizer.
The 20 pounder gun was used only for a short time before the Royal Ordnance Factories introduced the now famous 105 mm L7 gun. All later variants of the Centurion, from Mark 5/2 on, used the L7. A total of 24 variants and sub-variants were produced.
The design work for the Mk7 was completed in 1953 with production beginning shortly afterwards..
The Centurion was used as the basis for a range of specialist equipment, including engineering variants with a 165 mm demolition gun (AVRE-Armoured Vehicle Royal Engineers). It is one of the longest serving designs of all time, serving as a battle tank for the British and Australian armies from the Korean War (1950-1953) to the Vietnam War (1961-1972), and as an AVRE during Operation Desert Storm in January-February 1991.
Between 1946 and 1962, approximately 4,423 Centurions were produced, consisting of thirteen basic marks of the Centurion tank.
On 14 November 1950, the British Army's 8th King's Royal Irish Hussars, equipped with three squadrons of Centurion Mark 3 tanks landed in Pusan. Operating in sub-zero temperatures, the 8th Hussars learnt the rigours of winter warfare, where their tanks had to be parked upon straw to prevent the steel tracks from freezing to the ground, and engines had to be started every half hour, with each gear being engaged in turn, to prevent them from being frozen into place. During the Battle of the Imjin River Centurions won lasting fame when their tanks covered the withdrawal of the 29th Brigade, losing 5 tanks in the process. Centurions were also involved in the second Battle of the Hook where they played a significant role in repelling Chinese attacks. In a tribute to the 8th Hussars, General John O'Daniel, commanding the US 1st Corps, stated: "...In their Centurions, the 8th Hussars have evolved a new type of tank warfare. They taught us that anywhere a tank can go is tank country-even the tops of mountains."
Vietnam War
In 1967, the Royal Australian Armoured Corps' (RAAC) 1st Armoured Personnel Carrier (APC) Squadron transitioned to "A" Squadron, 3rd Cavalry Regiment in Vietnam. Although they successfully conducted combat operations in their areas of operation(s) (AO's), reports from the field stated that their light armor (M-113 ACAVs) were unable to force their way through dense jungle thus limiting their offensive actions against enemy forces. Consequently, the Australian government, under a considerable amount of criticism from Parliament made the decision to send a Squadron of Australian Centurion tanks to South Vietnam.
The 84mm gunned Australian Centurions of "C" Squadron, 1st Armoured Regiment (equivalent to a US Army battalion) landed in the Republic of South Vietnam on 24 February 1968. Aside from the US 90mm (medium) Gun Tank M48A3 Patton, M24 Chaffee and 76mm (light) Gun Tank M41 Walker Bulldog light tank, the Australian Centurions were the only other different type of tank used by the allied forces in the Vietnam War. After the battles at firebases Coral and Balmoral in May 1968, a third Centurion troop was formed, which included two tankdozers. By September of 1968, 'C' squadron (equivalent to a US Army company/troop) was brought to full strength of four troops; each troop (equivalent to a US Army platoon) containing four Centurion tanks. By 1969, 'B' Squadron, 3rd Cavalry; 'A' Squadron, 1st Armoured Regiment; 'B' Squadron, 1st Armoured Regiment; and 'C' Squadron, 1st Armoured Regiment, had all made rotations through South Vietnam. Originally deployed as 26 Centurion tanks, after 3 1/2 years of combat operations, 58 Centurions had served in country; at a cost of 42 battle damaged tanks, six of which were damaged beyond repair, and two Centurion tank crewmen had been killed in action.
Nuclear Tests Mk 3 Centurion Type K ,British Army number 06 BA 16, later devolved under Contract Demand 2843 to the Australian Army, who gave it registration number 169041, was involved in a nuclear blast test at Emu Plains in Australia in 1953.
It was placed about 500 meters from the device being detonated and left with the engine running.
Upon return to the tank for subsequent examination it was found to have been pushed away from the blast point by about 2 meters and that its engine had only stopped working because it had run out of fuel. Antennas were missing, lights and periscopes were heavily sand blasted and the cloth mantlet cover was heavily carbonised but the tank was able to be driven away from the site.
Had the tank been manned, it is unlikely that the crew would have survived due to the shock wave created by an atomic blast.
169041, subsequently nicknamed The Atomic Tank, was later used in the Vietnam War and is now located at Robertson Barracks in Palmerston, Northern Territory. Although other tanks were subjected to nuclear tests, 169041 is the only tank known to have withstood atomic tests and subsequently gone on for another 23 years of service, including 15 months on operational deployment in a war zone.
Variants
UK variants
FV 3802: Self-propelled 25-pdr artillery prototype based on Centurion - engine at rear as in gun tank - no production
FV 3805: Self-propelled 5.5in artillery prototype, again based on Centurion - engine at front - no production
FV 4004 Conway: "FV 4004 Self-propelled gun, 120mm, L1 gun, Mk 3" prototype based on Centurion 3 with a larger calibre 120mm L1 gun. To be an interim design until Conqueror tank entered service. One built
FV 4005: experimental 180mm gun with concentric recoil and auto-loader mounted on Centurion - 183mm version also built, with hand loading and conventional recoil. Known as FV 4005 Stage 1: gun in limited traverse open mount and FV 4005 Stage 2: gun in enclosed mount.
FV 4007 Centurion Mk 1, 2, 3, 4, 7, 8/1, 8/2:
FV 4011 Centurion Mk 5:
FV 4012 Centurion Mk 7/1, 7/2:
FV 4015 Centurion Mk 9:
FV 4017 Centurion Mk 10:
A41 [20mm]: Centurion prototype with coaxial Polsten cannon
A41 [Besa]: Centurion prototype with coaxial BESA MG - later fitted with experimental CDL
FV 4202 40 ton Centurion: Used to develop various concepts subsequently used in Chieftain
Centurion [Low Profile]: Variant with Teledyne Low-profile Turret
Centurion [MMWR Target]: Cobbled together radar target tank.
Centurion Marksman: Fitted with Marksman air defence turret
Centurion Ark aka FV 4016: Assault Gap Crossing Equipment
Centurion ARV Mk I: Armoured Recovery vehicle
Centurion ARV Mk II: Armoured Recovery Vehicle with superstructure
Centurion AVLB: Dutch armored vehicle laying bridge
Centurion AVRE 105: Combat Engineer Version armed with 105mm gun
Centurion AVRE 165: Combat Engineer Version armed with 165mm gun
Centurion BARV: Beach Armoured Recovery Vehicle
Centurion Bridgelayer aka FV 4002: Class 80 bridgelayer
Centurion Mk 1: 17pdr armed version
Centurion Mk 2: Fully cast turret
Centurion Mk 3: Fitted with 20pdr, 2 stowage positions for track links on glacis
Centurion Mk 4: Projected close-support version with 95mm CS howitzer
Centurion Mk 5: Browning machine guns fitted to coaxial and commander's cupola mounts, stowage bin on glacis
Centurion Mk 5/1 aka FV 4011: Increased glacis armour
Centurion Mk 5/2: Upgunned to 105mm
Centurion Mk 6: Upgunned and uparmoured Mk 5
Centurion Mk 6/1: Mk 6 fitted with IR equipment
Centurion Mk 6/2: Mk 6/1 fitted with ranging gun
Centurion Mk 7 aka FV 4007: Revised engine decks
Centurion Mk 7/1 aka FV 4012: Uparmoured Mk 7
Centurion Mk 7/2: Upgunned Mk 7
Centurion Mk 8: Resilient mantlet and new commanders cupola
Centurion Mk 8/1: Uparmoured Mk 8
Centurion Mk 8/2: Upgunned Mk 8
Centurion Mk 9 aka FV 4015: Upgunned and uparmoured Mk 7
Centurion Mk 9/1: Mk 9 with IR equipment
Centurion Mk 9/2: Mk 9 with ranging gun fitted
Centurion Mk 10 aka FV 4017: Upgunned and uparmoured Mk 8
Centurion Mk 10/1: Mk 10 with IR equipment
Centurion Mk 10/2: Mk 10 with ranging gun fitted
Centurion Mk 11: Mk 6 fitted with IR equipment and ranging gun
Centurion Mk 12: Mk 9 fitted with IR equipment and ranging gun
Centurion Mk 13: Mk 10 fitted with IR equipment and ranging gun
FV 4010 aka Heavy Tank Destroyer G.W. Carrier: Malkara Anti Tank Guided Missile launcher vehicle
UK specialist variants
FV 4003 Centurion Mk 5 AVRE 165: (1963) - AVRE (Armoured Vehicle Royal Engineers) vehicle with 165 mm demolition gun and a hydraulically-operated dozer blade or a mine plough. Can carry a fascine bundle or a roll of metal Class 60 Trackway; and tow the Giant Viper mine-clearance equipment or a trailer for another fascine. This variant had a five man crew. The vehicle was used in the Gulf War/Operation Desert Storm (1991).
Centurion Mk 12 AVRE 105: - Ex-Forward Artillery Observer vehicles converted to AVRE role.
FV 4019 Centurion Mk 5 Bulldozer: (1961) - Centurion Mk V with a dozer blade identical to that of the Centurion AVRE. One such tank was usually given to every Centurion-equipped squadron.
FV 4016 Centurion ARK: (1963) - Armoured Ramp Carrier. Can span a gap of up to 75 feet, can bear up to 80 tons.
FV 4002 Centurion Mk 5 Bridgelayer: (1963) - Mk 5 chassis with a No 5 Tank Bridge. The bridge can be launched in less than two minutes, can span a gap of 45 feet and can bear up to 80 tons.
FV 4013 Centurion ARV Mk 1: (1952) - Based on Mk 1 / Mk 2 hull. Turret replaced by a superstructure housing a winch driven by a 72 hp Bedford QL truck engine. About 180 units were built, some of them were used in the Korean War. After 1959 were used as training vehicles only.
FV 4006 Centurion ARV Mk 2: (1956) - Mk 1 / Mk 2 / Mk 3 hull with turret replaced by a superstructure housing a winch. The winch is powered by an auxiliary engine and is capable of pulling of up to 90 tons using a system of blocks. Armed with single .30 inch machine gun on the commander's cupola.
FV 4018 Centurion BARV (1963): Beach armoured recovery vehicle. The last Centurion variant to be used by the British Army. As of 2003, one vehicle was still in use by the Royal Marines. Now being replaced by the Hippo based on Leopard 1 chassis.
Non-UK variants
Olifant: Centurion tanks modernised by South Africa, considered the best indigenous tank design on the African continent.
- Semel (1974): 810 hp fuel-injected petrol engine, three-speed semi-automatic transmission.
- Olifant Mk 1 (1978): 750 hp diesel engine, semi-automatic transmission.
- Olifant Mk 1A (1985): Retains the fire control system of the original Centurion, but has a hand-held laser rangefinder for the commander and image-intensifier for the gunner.
- Olifant Mk 1B (1991): Torsion bar suspension, lengthened hull, additional armor on the glacis plate and turret, V-12 950 hp diesel engine, computerised fire control system, laser rangefinder.
- Olifant Mk 2: redesigned turret, new fire control system. Can mount LIW 105 mm GT-8 rifled gun or 120 mm smooth bore gun.
Sho't: An Israeli designation of the Centurion.
- Sho't Meteor: Centurion Mk.5 tanks with the original Meteor engine purchased in 1959.
- Sho't Kal Alef/Bet/Gimel/Dalet: Modernised Centurion tanks with 105mm gun from 1963, a new powerpack (the Continental AVDS-1790-2A diesel engine and the Allison CD850-6 transmission). Entered service in 1970; by 1974 all Israeli Centurions were upgraded to Sho't Kal (Mk.13 armour) and had a pintle mounted .50 cal HMG. Subvariants indicate upgrades received by Sho't Kal tanks during their operational life, including a new turret rotating mechanism, a new gun stabilizer, a new fire-control system and preparations for the installation of the Blazer ERA.
Nagmashot / Nagmachon / Nakpadon: Israeli heavy armoured personnel carriers based on Centurion tank's chassis.
Puma: Israeli combat engineering vehicle on Centurion tank chassis.
Eshel ha-Yarden: a quadruple tubular launcher for 290 mm ground-to-ground rockets mounted on Centurion tank chassis. The project was cancelled after a single prototype was built. Both this vehicle and an earlier version based on Sherman chassis are often referred to as MAR-290.
Tempest: Operated by Singapore, modernised with Israeli assistance, similar to Israeli variant, with diesel engine and new main gun, and possibly reactive armour. "Tempest" is the English translation of "Sho't".
Stridsvagn 81: Swedish Army designation for its 240 Mk 3 Centurions (20 pdr gun) with Swedish radios, etc.
Stridsvagn 101: Swedish Army designation for its 110 Mk 10 Centurions (105 mm gun) with Swedish radios, etc.
Stridsvagn 101R: Swedish Army designation for Stridsvagn 101 upgraded in early 1980s with laser range finder, etc.
Stridsvagn 102: Swedish Army designation for Stridsvagn 81 upgunned in early 1960s to 105 mm.
Stridsvagn 102R: Swedish Army designation for Stridsvagn 102 upgraded in early 1980s with laser range finder, etc.
Stridsvagn 104: Swedish Army designation for 80 Stridsvagn 102 modernised in early 1980s with laser range finder and diesel engine, etc. (along the same lines as the Israeli Shot Kal).
Stridsvagn 105: Swedish Army designation for Stridsvagn 102R upgraded with new suspension, etc. Prototype only.
Stridsvagn 106: Swedish Army designation for Stridsvagn 101R upgraded with new suspension, etc. Not built.
Bärgningsbandvagn 81: Swedish Army designation for Centurion ARV.
Operators
Australia (replaced by Leopard 1, which are being replaced by M1A1 Abrams)
Austria (fixed in bunkers)
Canada (replaced by Leopard C1. Many of the tanks were sold to Israel who promptly converted from them to diesel. Some are still in use as variants.)
Denmark (replaced by Leopard 1; and Leopard 1 is being replaced by Leopard 2.)
Egypt Replaced by T-55s, T-62s, M60A3s and M1A1s. ref
India Retired
Iraq Retired
Israel Gun tanks retired, many hulls converted to Nagmachon APCs, Nakpadon ARVs or Puma CEVs.
Jordan Retired
Kuwait Retired
Lebanon
The Netherlands (replaced by Leopard 1)
New Zealand Retired without replacement.
Singapore (63 Centurion Mk3 and Mk7s bought from India in 1975 and more from Israel in 1993-4, all upgraded to Israeli standard with new main guns and diesel engines)
Somaliland (originally supplied to Somalia)
South Africa
Sweden (Replaced by Stridsvagn 122)
Switzerland (replaced by Leopard 2)
United Kingdom Retired
Combat history
Bibliography
External links
- Home of an example of a Mark III Centurion Tank
- has 2 Centurion tanks in its collection.
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