Difference between revisions of "Chieftain Mk 10"

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(Pros and cons: Additional pros and cons added, reworded some of the previous ones)
(Edits.)
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[[File:GarageImage_Chieftain_Mk_10.jpg|420px|thumb|left]]
 
[[File:GarageImage_Chieftain_Mk_10.jpg|420px|thumb|left]]
 
{{break}}
 
{{break}}
The '''{{specs|name}}''' is a Rank {{Specs|rank}} British medium tank {{Battle-rating}}. It was introduced in [[Update 1.71 "New E.R.A"]]..
+
The '''{{specs|name}}''' is a Rank {{Specs|rank}} British medium tank {{Battle-rating}}. This tank was introduced in [[Update 1.71 "New E.R.A"]]..
  
 
== General info ==
 
== General info ==
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''If necessary use a visual template to indicate the most secure and weak zones of the armour.''-->
 
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''-->
Armour is identical to the earlier Chieftain variants, but with the addition of Stillbrew composite armor over the turret front and turret ring. Stillbrew covers a majority of a hull-down Chieftain's frontal projection, but certain areas are not covered. Weak points include the area directly around the gun breach and a sliver of the turret ring between the hull and turret composite packages.
+
Armour is identical to the earlier Chieftain variants, but with the addition of Stillbrew composite armour over the turret front and turret ring. Stillbrew covers a majority of a hull-down Chieftain's frontal projection, but certain areas are not covered. Weak points include the area directly around the gun breach and a sliver of the turret ring between the hull and turret composite packages.
  
Due to the very thick, highly angled armor package, Stillbrew-protected areas are very resistant to KE projectiles up until top-tier longrod APFSDS (e.g. DM33, 3BM42, etc.). The simple composition of Stillbrew means it isn't as efficient against chemical shell threats, but it retains a somewhat respectable chemical shell protection of around 500 mm.
+
Due to the very thick, highly angled armour package, Stillbrew-protected areas are very resistant to KE projectiles up until top-tier long rod APFSDS (e.g. DM33, 3BM42, etc.). The simple composition of Stillbrew means it isn't as efficient against chemical shell threats, but it retains a somewhat respectable chemical shell protection of around 500 mm.
  
 
'''Armour types:'''
 
'''Armour types:'''
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''Some tanks are armed with several guns in one or more turrets. Evaluate the additional weaponry and give advice on its use. Describe the ammunition available for additional weaponry. Give advice on how to use them and how to fill the ammunition storage. If there is no additional weaponry remove this subsection.''-->
 
''Some tanks are armed with several guns in one or more turrets. Evaluate the additional weaponry and give advice on its use. Describe the ammunition available for additional weaponry. Give advice on how to use them and how to fill the ammunition storage. If there is no additional weaponry remove this subsection.''-->
 
=== Machine guns ===
 
=== Machine guns ===
<!--''Offensive and anti-aircraft machine guns not only allow you to fight some aircraft, but also are effective against lightly armoured vehicles. Evaluate machine guns and give recommendations on its use.''-->
+
<!--''Offensive and anti-aircraft machine guns not only allow you to fight some aircraft but also are effective against lightly armoured vehicles. Evaluate machine guns and give recommendations on its use.''-->
 
{{main|L37A1 (7.62 mm)|L8A1 (7.62 mm)}}
 
{{main|L37A1 (7.62 mm)|L8A1 (7.62 mm)}}
  
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<!--''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''-->
 
<!--''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''-->
  
The Chieftain Mk 10 has a similar play style to the earlier marks, but gains much-needed additional turret armour. This allows the player to maintain a much stronger hull-down position, as Chieftain turrets without Stillbrew can be penetrated very easily at this rank. The added L23 APFSDS round helps with engaging stronger armour at longer distances as well. These factors make the Mk 10 a "super Chieftain" of sorts; it retains its weaknesses (a weak hull and low mobility) and doubles down on its strengths (a heavily-armoured turret and powerful gun).
+
The Chieftain Mk 10 has a similar play style to the earlier marks but gains much-needed additional turret armour. This allows the player to maintain a much stronger hull-down position, as Chieftain turrets without Stillbrew can be penetrated very easily at this rank. The added L23 APFSDS round helps with engaging stronger armour at longer distances as well. These factors make the Mk 10 a "super Chieftain" of sorts; it retains its weaknesses (a weak hull and low mobility) and doubles down on its strengths (a heavily-armoured turret and powerful gun).
  
 
A player should seek to avoid brawling and instead entrench themselves in a hull-down, supportive position for the team.
 
A player should seek to avoid brawling and instead entrench themselves in a hull-down, supportive position for the team.
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* Stillbrew composite armour makes large areas of the turret impervious to all but the best APDSFS and HEATFS rounds
 
* Stillbrew composite armour makes large areas of the turret impervious to all but the best APDSFS and HEATFS rounds
* L23 APFSDS with 191mm of penetration at 60°  
+
* L23 APFSDS with 191 mm of penetration at 60°  
 
* 10 degrees of gun depression
 
* 10 degrees of gun depression
 
* Fast reload time for a 120 mm (7.5s - 9.5s)
 
* Fast reload time for a 120 mm (7.5s - 9.5s)
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<!--''Describe the history of the creation and combat usage of the ground vehicle in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></nowiki></code>, as well as adding them at the end of the article.''-->
 
<!--''Describe the history of the creation and combat usage of the ground vehicle in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></nowiki></code>, as well as adding them at the end of the article.''-->
 
===Concept===
 
===Concept===
The idea of a "universal tank" began in Britain in 1944 when Montgomery and other influential people began advocating for more standardized tank to replace the cruiser and infantry tank classes used on the field. Efforts did not start until after World War II under the General Staff designation A45, with development starting just as the new cruiser tank [[Centurion Mk 3|Centurion]] started to enter military service. The A45 was cancelled in 1948 after development troubles and its inability to be used as a "universal" platform. Ironically, the Centurion proved to be a better "universal tank" platform than the A45.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
+
The idea of a "universal tank" began in Britain in 1944 when Montgomery and other influential people began advocating for a more standardized tank to replace the cruiser and infantry tank classes used on the field. Efforts did not start until after World War II under the General Staff designation A45, with development starting just as the new cruiser tank [[Centurion Mk 3|Centurion]] started to enter military service. The A45 was cancelled in 1948 after development troubles and its inability to be used as a "universal" platform. Ironically, the Centurion proved to be a better "universal tank" platform than the A45.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
  
 
===Development===
 
===Development===
The [[Centurion Mk 10|Centurion]] tank series was very successful in British and its allies' service, but development of new Soviet armour such as the [[IS-3]] and [[T-54 (1951)|T-54/55]] caused the British tank arms race to take another leap forward. Development on the Centurion's successor began in 1951 under the name ''Medium Gun Tank No. 2''. The project's priority was gun and armour, but with mobility to be equal to the Centurion's and a weight of less than 45 tons. The weight limit caused a program known as the Concept Study Programme to commence in order to find ways to keep the tank under that weight limit yet meet all the armour and firepower specifications. One of the concept that came out was the usage of bagged charges, which was already in use on naval ships, but was a new concept for tank ammunition. Thus, a gun using the bagged charge propellant system began development in 1954, along with a new specification by General Staff that the Medium Gun Tank No.2, now known as ''FV4201'', uses a conventional four crew tank with a turret and a better gun and armour than the Centurion. Though the [[Conqueror]] heavy tank was one such response to the firepower requirement, limited production cut that to only 200 units built.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
+
The [[Centurion Mk 10|Centurion]] tank series was very successful in British and its allies' service, but the development of new Soviet armour such as the [[IS-3]] and [[T-54 (1951)|T-54/55]] caused the British tank arms race to take another leap forward. Development on the Centurion's successor began in 1951 under the name ''Medium Gun Tank No. 2''. The project's priority was gun and armour, but with mobility to be equal to the Centurion's and weight of fewer than 45 tons. The weight limit caused a program known as the Concept Study Programme to commence in order to find ways to keep the tank under that weight limit yet meet all the armour and firepower specifications. One of the concepts that came out was the usage of bagged charges, which was already in use on naval ships but was a new concept for tank ammunition. Thus, a gun using the bagged charge propellant system began development in 1954, along with a new specification by General Staff that the Medium Gun Tank No.2, now known as ''FV4201'', uses a conventional four crew tank with a turret and a better gun and armour than the Centurion. Though the [[Conqueror]] heavy tank was one such response to the firepower requirement, limited production cut that to only 200 units built.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
  
The biggest bump to the firepower of the FV4201 was the recommendation of a 120 mm caliber tank cannon. Though the Conqueror used a 120 mm, the new one would incorporate more innovative features such as the bagged charges. Other design features added was the usage of a Rolls-Royce V8 engine, an auxiliary engine, an automatic gearbox, and a reclining seat for the driver. The reclining seat was a very new feature in tank design as it reduced the vehicle's hull height and thus gave it a lower profile. Leyland Motors was assigned to be the main designer for the tank despite their commitment to the Centurion production lines. The manufacturing process of the tank was decided to be cast rather than welded. In 1957, several specifications added to the FV4201 impeded its attempt to fit in the specifications. A bigger turret was designed and it mounted IR equipment for night fighting. Troops requested more frontal and turret side armour, which along with the turret change caused an increase in the tank's overall weight. A controversial decision was also made in 1957 by NATO that tanks should have multi-fuel engines. The FV4201 installed a new engine conforming to these standards in 1958, a German engine derived from a Junkers Jumo aviation engine. This extended development time since the engine compartment had to be redesigned to fit the engine, raising the total tank weight to 50 tons. The engine, designated the L60, was received with mixed reception by the Royal Armoured Corps (RAC) and other users due to its novel features. Britain stayed as the only user of a multi-fuel engine in the Cold War as many other nations found the concept impractical and abandoned it.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
+
The biggest bump to the firepower of the FV4201 was the recommendation of a 120 mm calibre tank cannon. Though the Conqueror used a 120 mm, the new one would incorporate more innovative features such as the bagged charges. Other design features added was the usage of a Rolls-Royce V8 engine, an auxiliary engine, an automatic gearbox, and a reclining seat for the driver. The reclining seat was a very new feature in tank design as it reduced the vehicle's hull height and thus gave it a lower profile. Leyland Motors was assigned to be the main designer for the tank despite their commitment to the Centurion production lines. The manufacturing process of the tank was decided to be cast rather than welded. In 1957, several specifications added to the FV4201 impeded its attempt to fit in the specifications. A bigger turret was designed and it mounted IR equipment for night fighting. Troops requested more frontal and turret side armour, which along with the turret change caused an increase in the tank's overall weight. A controversial decision was also made in 1957 by NATO that tanks should have multi-fuel engines. The FV4201 installed a new engine conforming to these standards in 1958, a German engine derived from a Junkers Jumo aviation engine. This extended development time since the engine compartment had to be redesigned to fit the engine, raising the total tank weight to 50 tons. The engine, designated the L60, was received with a mixed reception by the Royal Armoured Corps (RAC) and other users due to its novel features. Britain stayed as the only user of a multi-fuel engine in the Cold War as many other nations found the concept impractical and abandoned it.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
  
As the FV4201 finalized its prototype stages, General Staff sent a revised specification for it. The tank was to have the firepower of the Conqueror with the mobility of the Centurion, an armour that maximizes the protection-weight ratio, a weight limit at 45 ton with a top speed of 26 mph and an operating range of 300 miles. The first wooden prototype was made in March 1959, with full prototypes ordered in June 1959 for troop trials. Vickers-Armstrong and Royal Ordnance Factory shared the manufacturing process and the first prototypes were built in January 1960. The first two prototype FV4201 was trialed in Germany alongside their new [[Leopard I|Leopard 1]]. The greatest issue with the FV4201 was the engine, which caused many failures due to vibration, a result of the flawed multi-fuel concept. Trials were delayed due to lack of parts to fix broken pieces and redesigns were requested to fix problems. After a lengthy trial period in 1962, the FV4201, now named the '''Chieftain''', was sent to the operational unit in Germany for service and combat trials. The Chieftain was finally accepted for service in 1st May 1963, despite the many faults in the design. The first deliveries of the improved and redesigned Chieftains began in mid-1965. These were the ''Chieftain Mk 1's'', which further revealed problems with the horsepower that the ''Mk 2'' was designed and sent in April 1966. The ''[[Chieftain Mk 3]]'' rolled out of the production lines in September 1969, it now weighed 53 tons and the L60 engine was producing 650 hp, still underpowered for the weight. Engine failures were still frequent and left the Chieftain with a sour note until the [[Chieftain Mk 5|Mk 5]] variant fixed these pressing issues with a new engine and NBC protection. The Mk 5 would be the main variant of the Chieftain in British service. During its production life from 1965 to 1985, a total of 2,265 Chieftains would be built by Britain, with about 1,000 used by the British Army.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
+
As the FV4201 finalized its prototype stages, General Staff sent a revised specification for it. The tank was to have the firepower of the Conqueror with the mobility of the Centurion, an armour that maximizes the protection-weight ratio, a weight limit at 45 ton with a top speed of 26 mph and an operating range of 300 miles. The first wooden prototype was made in March 1959, with full prototypes ordered in June 1959 for troop trials. Vickers-Armstrong and Royal Ordnance Factory shared the manufacturing process and the first prototypes were built in January 1960. The first two prototype FV4201 was trialled in Germany alongside their new [[Leopard I|Leopard 1]]. The greatest issue with the FV4201 was the engine, which caused many failures due to vibration, a result of the flawed multi-fuel concept. Trials were delayed due to lack of parts to fix broken pieces and redesigns were requested to fix problems. After a lengthy trial period in 1962, the FV4201, now named the '''Chieftain''', was sent to the operational unit in Germany for service and combat trials. The Chieftain was finally accepted for service in 1st May 1963, despite the many faults in the design. The first deliveries of the improved and redesigned Chieftains began in mid-1965. These were the ''Chieftain Mk 1's'', which further revealed problems with the horsepower that the ''Mk 2'' was designed and sent in April 1966. The ''[[Chieftain Mk 3]]'' rolled out of the production lines in September 1969, it now weighed 53 tons and the L60 engine was producing 650 hp, still underpowered for the weight. Engine failures were still frequent and left the Chieftain with a sour note until the [[Chieftain Mk 5|Mk 5]] variant fixed these pressing issues with a new engine and NBC protection. The Mk 5 would be the main variant of the Chieftain in British service. During its production life from 1965 to 1985, a total of 2,265 Chieftains would be built by Britain, with about 1,000 used by the British Army.<ref name="DunstanChieftain">Dunstan Simon. ''Chieftain Main Battle Tank 1965-2003'' Great Britain: Osprey Publishing Ltd., 2003</ref>
  
 
===Service===
 
===Service===
The first British units to receive the Chieftains was the 1st and 5th Royal Tank Regiments back during the trials. The Chieftain, despite its initial engine flaws, proved to be combat-proof and could be upgraded to fit new requirements. Some of these upgrades were the addition of composite add-on armour to fight off new anti-tank technology such as the HEAT rounds. The Chieftain earned the title "most formidable tank in the world" during the 1960's Cold War period and also redefined the specifications of a "main battle tank". Its success is due to its novel main gun and heavily sloped armour, as well as a satisfactory mobility and speed able to compete with the Leopard 1. The Chieftain stayed in use by the British Army On the Rhine on the German border with the Warsaw Pact, which caused the Soviets to in turn station their best tanks such as their [[T-64A (1971)|T-64's]] against the Chieftains. The British retained the Chieftains all the way until 1997, when it was replaced by the Challenger II, initially being used in addition to Challenger I.
+
The first British units to receive the Chieftains was the 1st and 5th Royal Tank Regiments back during the trials. The Chieftain, despite its initial engine flaws, proved to be combat-proof and could be upgraded to fit new requirements. Some of these upgrades were the addition of composite add-on armour to fight off new anti-tank technology such as the HEAT rounds. The Chieftain earned the title "most formidable tank in the world" during the 1960's Cold War period and also redefined the specifications of a "main battle tank". Its success is due to its novel main gun and heavily sloped armour, as well as satisfactory mobility and speeds able to compete with the Leopard 1. The Chieftain stayed in use by the British Army On the Rhine on the German border with the Warsaw Pact, which caused the Soviets to in turn station their best tanks such as their [[T-64A (1971)|T-64's]] against the Chieftains. The British retained the Chieftains all the way until 1997, when it was replaced by the Challenger II, initially being used in addition to Challenger I.
  
The Chieftain was also successful on the export market, primarily in the Middle East to the hands of Iran, Jordan, Kuwait, and Oman. Another user of the Chieftain was Israel, with Britain initially agreeing to help set up production for locally produced Chieftains. Two Chieftains were sent for trials among the Israeli Defense Force in 1967. After two years of trials and deliberation for the acquirement of the Chieftains, Britain ultimately refused to offer the Israelis the Chieftain for political reasons. The Israeli trials benefit Britain with data on desert combat with the Chieftain however, and the refusal did jump start Israel's tank program that would become the ''Merkava''.
+
The Chieftain was also successful in the export market, primarily in the Middle East to the hands of Iran, Jordan, Kuwait, and Oman. Another user of the Chieftain was Israel, with Britain initially agreeing to help set up production for locally produced Chieftains. Two Chieftains were sent for trials among the Israeli Defense Force in 1967. After two years of trials and deliberation for the acquirement of the Chieftains, Britain ultimately refused to offer the Israelis the Chieftain for political reasons. The Israeli trials benefit Britain with data on desert combat with the Chieftain, however, and the refusal did jump start Israel's tank program that would become the ''Merkava''.
  
 
Despite that, sales to the Middle East soared, with Iran being the major buyer of the Chieftains with at least 887 of mostly the MK3 and MK5 variants sent to them before their revolution in 1979. The Chieftain saw prolonged combat in the Middle East in the Iran-Iraq War, including Operation Nasr which was the largest tank vs. tank battle of the war where the Iranian Chieftains and [[M60A1 (AOS)|M60A1 Pattons]] fought against the Iraqi [[T-62]]s. After that war, the Chieftain in Kuwait then saw combat fighting the Iraqis during their invasion in 1990. Kuwait eventually replaced their Chieftains with the Yugoslavian M-84 tanks, which are a variant of the Soviet T-72s.
 
Despite that, sales to the Middle East soared, with Iran being the major buyer of the Chieftains with at least 887 of mostly the MK3 and MK5 variants sent to them before their revolution in 1979. The Chieftain saw prolonged combat in the Middle East in the Iran-Iraq War, including Operation Nasr which was the largest tank vs. tank battle of the war where the Iranian Chieftains and [[M60A1 (AOS)|M60A1 Pattons]] fought against the Iraqi [[T-62]]s. After that war, the Chieftain in Kuwait then saw combat fighting the Iraqis during their invasion in 1990. Kuwait eventually replaced their Chieftains with the Yugoslavian M-84 tanks, which are a variant of the Soviet T-72s.
  
The Chieftain is still in service Iran, Jordan, and Oman in varying numbers, about 100 in Iran, 350 in Jordan, and 27 in Oman. The Chieftains underwent local upgrades to keep them up to date against modern threat, which resulted in the Iran ''Mobarez'' Chieftain upgrade.
+
The Chieftain is still in service Iran, Jordan, and Oman in varying numbers, about 100 in Iran, 350 in Jordan, and 27 in Oman. The Chieftains underwent local upgrades to keep them up to date against a modern threat, which resulted in the Iran ''Mobarez'' Chieftain upgrade.
  
 
===Legacy===
 
===Legacy===

Revision as of 12:23, 11 May 2019

RANK 6 BRITAIN
Rooikat 105 PACK
Chieftain Mk 10
uk_chieftain_mk_10.png
AB
RB
SB
General characteristics
Brief
Detailed
9.0/9.0/9.0BR
4 peopleCrew
89 %Visibility
front / side / backArmour
86 / 37 / 37Hull
250 / 86 / 45Turret
Mobility
57.2 tWeight
1 450 hp760 hpEngine power
25 hp/t13 hp/tPower-to-weight ratio
53 km/h forward
12 km/h back
48 km/h forward
11 km/h back
Speed
Armament
120 mm Ordnance BL Tk. L11 cannonMain weapon
53 roundsAmmunition
19 roundsFirst-order
7.5 / 9.7 sReload
-10° / 20°Vertical guidance
two-planeStabilizer
7.62 mm L37A1 machine gunMachinegun
2 000 roundsAmmunition
8.0 / 10.4 sReload
100 roundsBelt capacity
650 shots/minFire rate
7.62 mm L8A1 machine gunCoaxial weapon
6 000 roundsAmmunition
8.0 / 10.4 sReload
200 roundsBelt capacity
600 shots/minFire rate
Economy
250 000 Rp icon.pngResearch
690 000 Sl icon.pngPurchase
Sl icon.png1 700 / 2 529/3 220 / 4 791/3 200 / 4 761Repair
200 000 Sl icon.pngCrew training
690 000 Sl icon.pngExperts
2 100 Ge icon.pngAces
226 % Rp icon.pngReward for battle
140 % Sl icon.png150 % Sl icon.png140 % Sl icon.png
This page is about the British medium tank Chieftain Mk 10. For other uses, see Chieftain (Family).

Description

GarageImage Chieftain Mk 10.jpg


The Chieftain Mk 10 is a Rank VI British medium tank with a battle rating of 9.0 (AB/RB/SB). This tank was introduced in Update 1.71 "New E.R.A"..

General info

Survivability and armour

Armour is identical to the earlier Chieftain variants, but with the addition of Stillbrew composite armour over the turret front and turret ring. Stillbrew covers a majority of a hull-down Chieftain's frontal projection, but certain areas are not covered. Weak points include the area directly around the gun breach and a sliver of the turret ring between the hull and turret composite packages.

Due to the very thick, highly angled armour package, Stillbrew-protected areas are very resistant to KE projectiles up until top-tier long rod APFSDS (e.g. DM33, 3BM42, etc.). The simple composition of Stillbrew means it isn't as efficient against chemical shell threats, but it retains a somewhat respectable chemical shell protection of around 500 mm.

Armour types:

  • Stillbrew composite armour (turret front, turret ring)
  • Cast homogeneous armour (hull front, turret)
  • Rolled homogeneous armour (hull sides, hull rear, hull roof, turret roof)
  • Aluminium (side skirts)
Armour Front Sides Rear Roof
Hull 70-127 mm (40-79°) Front glacis
76.2 mm (40-45°) Lower glacis
200* mm (0-45°) Turret ring
88-220 (8-30°) + 13 mm Front Top
50 mm (1-31°) Center Top
37 mm (30°) + 13 mm Rear Top
37 (10°) + 13 mm Bottom
37 mm (1-7°) 13-28 mm
Turret 125-250 + 80-150* mm (2-81°) Turret front 100-220 mm (1-53°) Gun mantlet 45-196 mm (1-65°) 45 mm (1°) 50.8 mm Front
25 mm Rear
Armour Sides Roof
Cupola 150 mm 25 mm
Composite armour* Front Sides Rear Roof
Hull Turret ring:
200 mm Kinetic
200 mm Chemical
N/A N/A N/A
Turret Turret front:
450 mm Kinetic
500 mm Chemical
N/A N/A N/A

Notes:

  • Suspension wheels and tracks are 20 mm thick.
  • Belly armour is 16 mm of RHA.
  • Stillbrew armour at turret ring is pure 200 mm CHA.
  • Stillbrew armour on turret front is composed of (80 to 150 mm CHA) + (60 mm rubber) + (150 to 250 mm CHA).

Mobility

Mobility characteristic
Weight (tons) Add-on Armor
weight (tons)
Max speed (km/h)
57.2 N/A 53 (AB)
48 (RB/SB)
Engine power (horsepower)
Mode Stock Upgraded
Arcade 1,178 ???
Realistic/Simulator 672 ???
Power-to-weight ratio (hp/ton)
Mode Stock Upgraded
Arcade 20.59 ???
Realistic/Simulator 11.75 ???

Armaments

Main armament

120 mm L11
Capacity Vertical
guidance
Horizontal
guidance
Stabilizer
53 -10°/+20° ±180° Two-plane
Turret rotation speed (°/s)
Mode Stock Upgraded Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
Arcade 21.4 _.__ _.__ _.__ _.__
Realistic 13.4 _.__ _.__ _.__ _.__
Reloading rate (seconds)
Stock Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
9.70 _.__ _.__ _.__
Ammunition
Penetration statistics
Ammunition Type of
warhead
Penetration in mm @ 90°
10m 100m 500m 1000m 1500m 2000m
Shot L15A3 APDS 320 315 305 294 280 270
Shot L23 APFSDS 410 408 405 400 390 380
Shell L31A7 HESH 152 152 152 152 152 152
Shell details
Ammunition Type of
warhead
Velocity
in m/s
Projectile
Mass in kg
Fuse delay

in m:

Fuse sensitivity

in mm:

Explosive Mass in g
(TNT equivalent):
Normalization At 30°
from horizontal:
Ricochet:
0% 50% 100%
Shot L15A3 APDS 1370 7.6 N/A N/A N/A +1.5° 75° 78° 80°
Shot L23 APFSDS 1535 3.89 N/A N/A N/A +1.5° 76° 77° 78°
Shell L31A7 HESH 670 17 0.4 0.1 4,100 +0° 73° 77° 80°
Smoke characteristic
Ammunition Velocity
in m/s
Projectile
Mass in kg
Screen radius
in m
Screen time
in s
Screen hold time
in s:
Explosive Mass in g
(TNT equivalent):
L34 670 17.0 20 5 25 50
Ammo racks
Full
ammo
1st
rack empty
2nd
rack empty
Visual
discrepancy
53  (+)  (+) No

Machine guns

7.62 mm L37A1
Pintle mount
Capacity (Belt capacity) Fire rate
(shots/minute)
Vertical
guidance
Horizontal
guidance
2,000 (100) 650 -10°/+50° ±120°
7.62 mm L8A1
Coaxial mount
Capacity (Belt capacity) Fire rate
(shots/minute)
Vertical
guidance
Horizontal
guidance
6,000 (200) 600 N/A N/A

Usage in battles

The Chieftain Mk 10 has a similar play style to the earlier marks but gains much-needed additional turret armour. This allows the player to maintain a much stronger hull-down position, as Chieftain turrets without Stillbrew can be penetrated very easily at this rank. The added L23 APFSDS round helps with engaging stronger armour at longer distances as well. These factors make the Mk 10 a "super Chieftain" of sorts; it retains its weaknesses (a weak hull and low mobility) and doubles down on its strengths (a heavily-armoured turret and powerful gun).

A player should seek to avoid brawling and instead entrench themselves in a hull-down, supportive position for the team.

Pros and cons

Pros:

  • Stillbrew composite armour makes large areas of the turret impervious to all but the best APDSFS and HEATFS rounds
  • L23 APFSDS with 191 mm of penetration at 60°
  • 10 degrees of gun depression
  • Fast reload time for a 120 mm (7.5s - 9.5s)
  • Usable reverse speed
  • Can unlock a laser rangefinder as a T4 modification, the first British tank in the tree to be able to

Cons:

  • Stillbrew composite armour leaves vulnerable areas of the turret unprotected, such as the gun mantlet
  • Poor mobility
  • Weak hull comprised only of cast armour type (CHA)
  • Hull is almost entirely filled with ammunition

History

Concept

The idea of a "universal tank" began in Britain in 1944 when Montgomery and other influential people began advocating for a more standardized tank to replace the cruiser and infantry tank classes used on the field. Efforts did not start until after World War II under the General Staff designation A45, with development starting just as the new cruiser tank Centurion started to enter military service. The A45 was cancelled in 1948 after development troubles and its inability to be used as a "universal" platform. Ironically, the Centurion proved to be a better "universal tank" platform than the A45.[1]

Development

The Centurion tank series was very successful in British and its allies' service, but the development of new Soviet armour such as the IS-3 and T-54/55 caused the British tank arms race to take another leap forward. Development on the Centurion's successor began in 1951 under the name Medium Gun Tank No. 2. The project's priority was gun and armour, but with mobility to be equal to the Centurion's and weight of fewer than 45 tons. The weight limit caused a program known as the Concept Study Programme to commence in order to find ways to keep the tank under that weight limit yet meet all the armour and firepower specifications. One of the concepts that came out was the usage of bagged charges, which was already in use on naval ships but was a new concept for tank ammunition. Thus, a gun using the bagged charge propellant system began development in 1954, along with a new specification by General Staff that the Medium Gun Tank No.2, now known as FV4201, uses a conventional four crew tank with a turret and a better gun and armour than the Centurion. Though the Conqueror heavy tank was one such response to the firepower requirement, limited production cut that to only 200 units built.[1]

The biggest bump to the firepower of the FV4201 was the recommendation of a 120 mm calibre tank cannon. Though the Conqueror used a 120 mm, the new one would incorporate more innovative features such as the bagged charges. Other design features added was the usage of a Rolls-Royce V8 engine, an auxiliary engine, an automatic gearbox, and a reclining seat for the driver. The reclining seat was a very new feature in tank design as it reduced the vehicle's hull height and thus gave it a lower profile. Leyland Motors was assigned to be the main designer for the tank despite their commitment to the Centurion production lines. The manufacturing process of the tank was decided to be cast rather than welded. In 1957, several specifications added to the FV4201 impeded its attempt to fit in the specifications. A bigger turret was designed and it mounted IR equipment for night fighting. Troops requested more frontal and turret side armour, which along with the turret change caused an increase in the tank's overall weight. A controversial decision was also made in 1957 by NATO that tanks should have multi-fuel engines. The FV4201 installed a new engine conforming to these standards in 1958, a German engine derived from a Junkers Jumo aviation engine. This extended development time since the engine compartment had to be redesigned to fit the engine, raising the total tank weight to 50 tons. The engine, designated the L60, was received with a mixed reception by the Royal Armoured Corps (RAC) and other users due to its novel features. Britain stayed as the only user of a multi-fuel engine in the Cold War as many other nations found the concept impractical and abandoned it.[1]

As the FV4201 finalized its prototype stages, General Staff sent a revised specification for it. The tank was to have the firepower of the Conqueror with the mobility of the Centurion, an armour that maximizes the protection-weight ratio, a weight limit at 45 ton with a top speed of 26 mph and an operating range of 300 miles. The first wooden prototype was made in March 1959, with full prototypes ordered in June 1959 for troop trials. Vickers-Armstrong and Royal Ordnance Factory shared the manufacturing process and the first prototypes were built in January 1960. The first two prototype FV4201 was trialled in Germany alongside their new Leopard 1. The greatest issue with the FV4201 was the engine, which caused many failures due to vibration, a result of the flawed multi-fuel concept. Trials were delayed due to lack of parts to fix broken pieces and redesigns were requested to fix problems. After a lengthy trial period in 1962, the FV4201, now named the Chieftain, was sent to the operational unit in Germany for service and combat trials. The Chieftain was finally accepted for service in 1st May 1963, despite the many faults in the design. The first deliveries of the improved and redesigned Chieftains began in mid-1965. These were the Chieftain Mk 1's, which further revealed problems with the horsepower that the Mk 2 was designed and sent in April 1966. The Chieftain Mk 3 rolled out of the production lines in September 1969, it now weighed 53 tons and the L60 engine was producing 650 hp, still underpowered for the weight. Engine failures were still frequent and left the Chieftain with a sour note until the Mk 5 variant fixed these pressing issues with a new engine and NBC protection. The Mk 5 would be the main variant of the Chieftain in British service. During its production life from 1965 to 1985, a total of 2,265 Chieftains would be built by Britain, with about 1,000 used by the British Army.[1]

Service

The first British units to receive the Chieftains was the 1st and 5th Royal Tank Regiments back during the trials. The Chieftain, despite its initial engine flaws, proved to be combat-proof and could be upgraded to fit new requirements. Some of these upgrades were the addition of composite add-on armour to fight off new anti-tank technology such as the HEAT rounds. The Chieftain earned the title "most formidable tank in the world" during the 1960's Cold War period and also redefined the specifications of a "main battle tank". Its success is due to its novel main gun and heavily sloped armour, as well as satisfactory mobility and speeds able to compete with the Leopard 1. The Chieftain stayed in use by the British Army On the Rhine on the German border with the Warsaw Pact, which caused the Soviets to in turn station their best tanks such as their T-64's against the Chieftains. The British retained the Chieftains all the way until 1997, when it was replaced by the Challenger II, initially being used in addition to Challenger I.

The Chieftain was also successful in the export market, primarily in the Middle East to the hands of Iran, Jordan, Kuwait, and Oman. Another user of the Chieftain was Israel, with Britain initially agreeing to help set up production for locally produced Chieftains. Two Chieftains were sent for trials among the Israeli Defense Force in 1967. After two years of trials and deliberation for the acquirement of the Chieftains, Britain ultimately refused to offer the Israelis the Chieftain for political reasons. The Israeli trials benefit Britain with data on desert combat with the Chieftain, however, and the refusal did jump start Israel's tank program that would become the Merkava.

Despite that, sales to the Middle East soared, with Iran being the major buyer of the Chieftains with at least 887 of mostly the MK3 and MK5 variants sent to them before their revolution in 1979. The Chieftain saw prolonged combat in the Middle East in the Iran-Iraq War, including Operation Nasr which was the largest tank vs. tank battle of the war where the Iranian Chieftains and M60A1 Pattons fought against the Iraqi T-62s. After that war, the Chieftain in Kuwait then saw combat fighting the Iraqis during their invasion in 1990. Kuwait eventually replaced their Chieftains with the Yugoslavian M-84 tanks, which are a variant of the Soviet T-72s.

The Chieftain is still in service Iran, Jordan, and Oman in varying numbers, about 100 in Iran, 350 in Jordan, and 27 in Oman. The Chieftains underwent local upgrades to keep them up to date against a modern threat, which resulted in the Iran Mobarez Chieftain upgrade.

Legacy

The Chieftain helped revolutionize tank design with its innovative features. The most important was the reclining driver seat, which allowed the tank to have a lower profile as the driver was now that highest part of the hull in tank design. It also had the most powerful NATO tank armament in service until the advent of the German Rheinmetall 120 mm, which came about two decades later. Chieftain can be considered the definitive main battle tank of the 1960s and help transition the path between second-generation main battle tanks and the third.

Media

An excellent addition to the article will be video guides, as well as screenshots from the game and photos.

References

  1. 1.0 1.1 1.2 1.3 Dunstan Simon. Chieftain Main Battle Tank 1965-2003 Great Britain: Osprey Publishing Ltd., 2003

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the series of the vehicles;
  • links to approximate analogues of other nations and research trees.

External links

[Devblog] Chieftain Mk.10: Dressing Up for War