Arjun Main Battle Tank (MBT)

HariPrasad-1

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MBT Arjun is a formidable tank, but can it replace Russian made T-90?
Written By: Vikas
Published: Monday, January 29, 2018, 6:00 [IST]

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Battle tanks can be deadly war machines in certain kinds of terrains. A division of tanks can lend a powerful support to the infantry and crush the enemy defences when used in right conditions and terrain. In India's context, tank divisions are mostly used in borders areas of Rajasthan where desert poses a major challenge for other equipments to be moved into position in the event of war. Tanks are used both for offensive and defensive maneuvers of the army.





Arjun Mk II

Most of India's tank fleet comprises of Russian made T-90s which is a modern variation of the T-72B and incorporates many features found on the T-80U. The T-90M Bhishma is a vehicle tailored for Indian service, improving upon the T-90S, and developed with assistance from Russia and France. The tanks are equipped with the French Thales-built Catherine-FC thermal sights, and utilise Russian Kontakt-5 K-5 explosive reactive armoured plates.

Our focus here is on ingenuously made Main Battle Tank Arjun. It is a state-of-the-art tank with superior firepower, high mobility, and excellent protection. The superior armour defeating capability of the ingenuously developed Fin Stabilized Armour Piercing Discarding Sabot (FSAPDS) ammunition and 120 mm caliber rifled gun give MBT ARJUN an edge over contemporary world tanks. A computer-controlled integrated fire control system incorporating day-cum-night stabilized sighting system guarantees a very high first round hit probability and reduced reaction time to bring effective fire on targets.

The Arjun entered service with the Indian Army in 2004. The tanks were first inducted into the 43 Armoured Regiment, Indian Army Armoured Corps while the latest induction has been into the 75 Armoured Regiment on 12 March 2011.

The reason why the Indian Army relies heavily on T-90s is because of considerable delays and other problems in Arjun's development from the 1990s to the 2000s. This prompted the Indian Army to order T-90S tanks from Russia to meet requirements that the Arjun had been expected to fulfill.

In March and April 2010, comparative trials on the maneuverability of the Arjun MBT and the Russian T-90 tank in Rajasthan deserts resulted in a better performance from the Arjun tank.

Arjun vs T-90

If we compare specifications of Arjun and T-90, then we can see that Arjun is far more heavier than T-90. But, at the same time, Arjun has a 1400 hp engine as compared to 950 hp engine of T-90, which explains why the top speed of Arjun is 72 km/h, whereas that of T-90 is 60 km/h.

Arjun requires a crew of four to operate - commander, gunner, loader and driver. T-90 needs a crew of three to operate.

It was also reported that T-90s have had performance issues in extremely hot weather. Recent comments from Army sources indicate that the Russian T-90S will form the mainstay of its future force, despite that tank's performance issues in hot weather.

Although a formidable tank, Arjun (the original version) has had issues. The Arjun faced persistent problems of overheating and that "tank's main subsystems, the fire control system (FCS), the suspension system, integrated gunner's main sight, which includes a thermal imager and laser range-finder, which were rendered erratic and useless by the abnormally high peak internal temperature of beyond 55 °C in India.

Arjun Mk II

Recently, the Army had asked for 93 improvements in Arjun tank which includes the capability of firing the anti-tank LAHAT missile, laser protection suite and improved armoured protection for the vehicle.

The Defence Research and Development Organisation (DRDO) Chairman S Christopher last year said necessary modifications have been made to the advanced version of the indigenous Arjun Mark II main battle tank as recommended by the Army.

Arjun Mark II is the modified version of Arjun. As per DRDO, Arjun Mark II can fire missiles, has advanced explosive reactive armour panels, mine plough, automatic target tracking, advanced land navigation system, digital control harness and advanced commander panoramic sight among other features.

The Arjun Mark II is an advanced third generation tank.[citation needed] Its development was completed in 2 years owing to experience gained from developing the first version. It has outclassed the T-90 during comparative trials.

Regarding the trials, a Ministry of Defence press release reported: "After many years of trial and tribulation it has now proved its worth by its superb performance under various circumstances, such as driving cross-country over rugged sand dunes, detecting, observing and quickly engaging targets, accurately hitting targets, both stationary and moving, with pin pointed accuracy. Its superior fire-power is based on accurate and quick target acquisition capability during day and night in all types of weather and shortest possible reaction time during combat engagements".

The Fire control system of the new tank has a hit probability over 90%, when firing on the move. The new tank also has improved communication systems and new navigation system.


So as of now it looks like Arjun MK 2 is the tank that the army is looking for. But, the production of tanks take time, so it may not be able to replace T90s completely in near future. The army has shown confidence in the performance of Arjun MK 2, and will acquire more of them as they become available.
As army demands, We should start making Arjun from light steel so that weight of tank can be reduced.
 

Vinod DX9

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That will be a blunder. Light Steel unless new metallurgy applied like Japan , will not give required protection. Arjun has heavy armour but it gives tremendous level of protection.... We can't neglect it. Whatever we have is God's Blessings....rather T-90s are Achilles Hills
 

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As army demands, We should start making Arjun from light steel so that weight of tank can be reduced.
In the internal parts, we should substitute internal steel in Arjun with Carbon fiber fabric moldings, that will reduce weight, it will increase cost, but will result in good number of weight reduction. This will change thrust to weight ratio, etc.
 

WolfPack86

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Indian Army Arjun Mk.1 Main Battle Tank : Arjun has a millimetre band radar system which can act as a Missile Approach Warning System (MAWS) as it can detect detect approaching missiles/threat towards the tank. NOTE : IAF Su-30MKI still now , lacks a MAWS
 

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Credit of post goes to dfi member who found it.
Did you mean to say 'unmanned turret'?
'Turretless' doesn't make any sense.

The next version of tank will most probably come with an autoloader which obviates the need for a 'loader' & as such the turret could be made unmanned (like T14). This I'd assume would be part of FMBT/FRCV - it may be not be part of Arjun family anymore.

What would the HNS based Arjun be called? Mk3 or Mk2?
 
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sayareakd

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Did you mean to say 'unmanned turret'?
'Turretless' doesn't make any sense.

The next version of tank will most probably come with an autoloader which obviates the need for a 'loader' & as such the turret could be made unmanned (like T14). This I'd assume would be part of FMBT/FRCV - it may be not be part of Arjun family anymore.

What would the HNS based Arjun be called? Mk3 or Mk2?
May be to save money they will use Arjun tank with modified turret. Post this on Arjun tank thread.
 

Enquirer

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May be to save money they will use Arjun tank with modified turret. Post this on Arjun tank thread.
I think Arjun chassis won't be used anymore.
The fundamental reason why Arjun is overweight is because of the 4-man crew requirement that needed more space (as such more metal). All 4-man crew tanks (including Abrams, Leopard, Merkava etc - all of the BEST tanks in the world) are 60+ tonne!
It is inherently STUPID of IA to ask for a 4-man crew tank (via their ASQR) and expect the weight to be that of a 3-man crew tank!!!
Future DRDO tank chassis will be smaller (for 3 man crew) - no longer of Arjun family.
 
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Advaidhya Tiwari

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I think Arjun chassis won't be used anymore.
The fundamental reason why Arjun is overweight is because of the 4-man crew requirement that needed more space (as such more metal). All 4-man crew tanks (including Abrams, Leopard, Merkava etc - all of the BEST tanks in the world) are 60+ tonne!
It is inherently STUPID of IA to ask for a 4-man crew tank (via their ASQR) and expect the weight to be that of a 3-man crew tank!!!
Future DRDO tank chassis will be smaller (for 3 man crew) - no longer of Arjun family.
3 men crew needs autoloader which in turn causes slow loading of ammunition. 4 men crew are needed for fast loading of ammunitions in a tank. It is unwise to use autoloader
 

Enquirer

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3 men crew needs autoloader which in turn causes slow loading of ammunition. 4 men crew are needed for fast loading of ammunitions in a tank. It is unwise to use autoloader
Don't know where you get ALL your weird ideas/speculations!!
Who told you that autoloaders are slow? It's just that for a 40 round tank that fires few rounds here and there, manual loading is as effective as an autoloader (one thing is not faster than other as far as loading itself goes)!

But some 'tank philosophers' prefer 4 men purely from the tank maintenance perspective. When stuff goes wrong, and in-field maintenance has to be performed 4-men are better than 3-men!
 

Advaidhya Tiwari

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Don't know where you get ALL your weird ideas/speculations!!
Who told you that autoloaders are slow? It's just that for a 40 round tank that fires few rounds here and there, manual loading is as effective as an autoloader (one thing is not faster than other as far as loading itself goes)!

But some 'tank philosophers' prefer 4 men purely from the tank maintenance perspective. When stuff goes wrong, and in-field maintenance has to be performed 4-men are better than 3-men!
Different rounds will have to be sorted and loaded according to situation. That is where autoloader becomes a problem. Different ammunition exists for situation like hitting a bunker, enemy patrol unit, enemy tanks etc
 

Enquirer

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Different rounds will have to be sorted and loaded according to situation. That is where autoloader becomes a problem. Different ammunition exists for situation like hitting a bunker, enemy patrol unit, enemy tanks etc
None of that is a problem!
Only problem with (earlier) autoloaders is removing a loaded round - when they decide at the nick of time to use a different type of round (very rare). With advances in autoloaders, the unloading mechanism is also not a problem!

You always a quote a 'historical' issue to justify a 'current' decision - like horses are better than cars because cars need to be crank-started!
 
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shuvo@y2k10

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It can be mounted very easily depending on Army's requirement with the penalty of weight gain. Additional armour modules on side, turret top or front and back can also be done as both the ERA, NERA and Kanchan armour is modular.
BEL has also developed TUSK type protection package for BMP which also can be done on Arjun MBT.
 
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