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    Arjun MK-II MBT

    Arjun MK-II user trials kicked off in Rajasthan


    User trials of Main Battle Tank, Arjun MK-II equipped with almost 75 new improved technologies and some other modified features as compared to Mark-I version have been kicked off in Rajasthan and are expected to continue for the coming few days. Defence Research and Development Organisation which has indigenously developed and manufactured this much awaited MBT with help of its various labs led by Chennai-based Combat Vehicle Research and Development Establishment has been conducting development trials for almost two years to test various technologies integrated into Arjun MK-II at different times as per the demands projected by Army.

    However, as per a DRDO official, it is the first time, that all the integrated technologies including 16 major technologies are being tested at the same time. The user trials as per the officials started yesterday.

    It is to be mentioned that Hyderabad based Defence Metallurgical Research Laboratory of DRDO has developed the armour for Mk II version of Arjun. “Talking about DRDO, we are satisfied with the end product and its results making it one of the most potent combat tanks for the Army with unmatched automatic target detection and destruction while offering maximum protection to the crew. Now, the Army is testing the same in Pokharan Firing Range in Rajasthan”, said an official adding that MK-II is heavier than Mk-I but has more speed and manoeuvrability as compared to lighter counterparts currently in service with Army.

    However, DRDO is asserting that if all goes well, Army should place an order of at least 500 Arjun MK-II tanks for make it cost effective, production viable and continuous in terms of supply. “Army earlier inducted 124 Mk-I Arjun Tanks and then asked for an advanced version equipped with specified features and capabilities. However, to make it cost effective and viable for both the industry and the users, the order has to be increased well in time to at least 500 for Mk II version of Arjun MBT. If the Army is satisfied, the order of 500 should be placed in one go only since that would save time taken for various formalities and procedures of a fresh order”, said a DRDO official while speaking to The Times of India.

    Amongst the features which have been modified in MK-II version of Arjun vis-a-vis its Mk-I version are night vision capabilities with thermal imaging system for detecting all kinds of missiles, Explosive Reactive Armor (ERA) providing greater protection to crew and tank, mine ploughs, ability to fire Anti-tank missile with 120 mm main gun, Advanced Air Defense gun capable of shooting down Helicopters with a 360 degree coverage, Automatic Target Tracking (ATT) lending a greater accuracy when it comes to moving targets and superior Laser Warning and Control systems.

    DRDO official said that Arjun MK-II is equipped with integrated display system capable of detecting targets, their number and location while the thermal imaging unit facilitates the tank commander to see upto half a kilometre.

    However, the German engine of Arjun Mk-I have again been integrated in MK-II as well despite claims of an indigenous engine as per the sources. Officials are attributing the same to the small order being proposed by Army and said that a separate plant for manufacturing engines cannot be put up for such limited order.

    http://idrw.org/?p=25639
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    Re: Arjun MK-II MBT

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    Arjun Main Battle Tank

    The Arjun main battle tank developed for the Indian Army
    The Arjun main battle tank (MBT), named after the warrior prince Arjuna in the Indian epic Mahabharata, was developed by the Defence Research and Development Organisation (DRDO) for the Indian Army.
    It has been developed under a multilaboratory programme of DRDO mainly at the Combat Vehicles Research & Development Establishment (CVRDE) laboratory.
    Arjun main battle tank orders and deliveries

    The Indian Army placed initial orders for 124 tanks in March 2000. The first batch of five tanks was delivered in August 2004 and a total of 45 had been delivered by May 2009. The army has now received all 124 tanks.
    In March and April 2010, comparative trials on manoeuvrability of the Arjun MBT and the Russian T-90 tank in Rajasthan deserts resulted in a better performance from the Arjun tank. The Indian Army subsequently ordered another 124 advanced tanks in May 2010, this time mkII.
    "The Arjun main battle tank (MBT) is named after the warrior prince Arjuna in the Indian epic Mahabharata."

    The Arjun mkII variant will be a lighterweight futuristic main battle tank (FMBT) with electro-optical sensors and high-power lasers. It will be developed by DRDO with a total of 93 upgrades, as per the requirements of the army. The mkII is expected to be ready by 2013-14. They are expected to be the potential contender for the replacement of aging Army's Russian T-72 fleet of about 2,400 tanks.
    In 2009, the Colombian Army expressed its interest to buy Arjun to fulfil its immediate requirement of 10 tanks and further requirement of 100 tanks over five years.
    Design

    The development of Arjun MBT began in March 1974. The tank heavily depends on foreign technology and equipment. Krauss Maffei, developer of the German Leopard 2 tank, provided the design assistance. Hence, the Arjun closely resembles Leopard 2A4 tank.
    Up to 25%-30% of the tank components including engine, transmission, gun barrel, tracks and fire control systemare imported.
    Armament

    The Arjun MBT is equipped with an indigenously developed 120mm main rifled gun with fin stabilised armour-piercing discarding sabot (FSAPDS) and high-explosive squash head (HESH) ammunition. An anti-personnel 7.62mm coaxial machine gun is fitted alongside the main gun and a 12.7mm machine gun is fitted at the top of the turret to aim aircraft and ground targets. An anti-helicopter round is also being developed to combat air threat to armour.
    The tank has special containers to carry 39 projectiles of 120mm ammunition. These containers keep the ammunition away from the crew, providing an additional level of survivability. The rear-side faces of the turret are fitted with up to 12 smoke grenade dischargers. The weapon systems can be operated in silent watch mode with the help of an auxiliary power unit.
    Arjun self-protection

    The newly developed Kanchan modular composite armour gives all-round protection to the tank from anti-tank ammunition. Kanchan has been manufactured by Defence Metallurgical Research Laboratory (DMRL) armour design and development division.
    The armour is made of composite panels sandwiched between rolled homogeneous armour (RHA), which can defeat APFDS or HEAT rounds. The turret houses lightweight compact Kanchan armour. An option is also available to add explosive reactive armour. Mobile camouflaging system (MCS) technology is also being developed by the DRDO in collaboration with Barracuda Camouflaging Limited.
    Fire control and observation

    The Arjun is equipped with a computer-controlled integrated fire control system with a laser range finder. The system is jointly developed by BEL and IRDE. The day/ night stabilised sighting system is also incorporated in the system. The targets are hit with high first-round-hit probability and reduced reaction time. The system is capable of acquiring targets under all weather conditions, and the stabilisation system allows the main armament to accurately fire at targets on the move.
    "The Arjun mkII variant will be a lighterweight futuristic main battle tank (FMBT)."
    The gunner's main sight includes a day sight, thermal sight, a laser range finder and a stabilised head. Night vision facility is provided by a thermal imager. The gunner and the commander can locate target in total darkness and in the presence of smoke, fog, snow, haze and dust. Targets can be found accurately with the laser range finder integrated on the main sight.
    The panoramic sight allows commanders to have all-round surveillance on the battlefield without being disturbed by turret motion. The two axes rate gyro-mounted on the platform of the head mirror stabilise the view of the field, offering dual magnification.
    Battle management system

    The battlefield management system of the tank has been developed by the DRDO and Ebit Israel. The system connects the tank to other fighting units in the battle field. It is also equipped with GPS-based navigation systems.
    Upgrades to the tank under development include a laser warning control system (LWCS), a tank urban survival kit (aerosol smoke grenade system, IR jammer and laser warning) and tank simulators.
    Main battle tank engine

    Arjun is powered by a single MTU 838 KA 501 ten-cylinder diesel engine rated at 1,400hp. The engine can provide a maximum speed of 70km/h and a cross-country speed of 40km/h. A new 1,500hp engine is under development to replace the existing engine.
    Mobility

    The high power-to-weight ratio and low specific ground pressure provide fast, high manoeuvrability and mobility across difficult terrains. Low fuel consumption and fuel storage capacity of the tank optimises the operational range. The inside compartment is designed to provide high levels of comfort to the crew working over long periods. The tank also features hydro-pneumatic suspension and effective transmission system. The epicyclic train gearbox provides four forward and two reverse gears.







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    Comparative trials were conducted between Arjun and T-90 tanks to test manoeuvrability in Rajasthan deserts.
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    Re: Arjun MK-II MBT

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    A model of the DRDO-developed Arjun MBT on display.
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    The gunner's compartment of the Arjun tank.


    source:
    http://www.army-technology.com/proje...rjun-mbt4.html
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    Re: Arjun MK-II MBT

    India drops Israeli LAHAT, will develop own missile for Arjun Mk-2


    The homemade Arjun Mk-2 tank has suffered a major setback, with a critical Israeli anti-tank missile to be fitted on it failing to meet the army’s requirements.

    The development comes at a time when the defence ministry has set the ball rolling for buying 118 Arjun Mk-2 tanks at a cost of more than Rs. 6,600 crore.

    The tank developed by the Defence Research and Development Organisation (DRDO) is an upgraded version of the Mk-1 variant, 119 of which have been inducted in the army.

    One of the most significant upgrades proposed in the new tank is its missile-firing capability.

    However, the failure of the laser homing anti-tank (LAHAT) missile, manufactured by the Israeli Aerospace Industries, will seriously hinder the ongoing project as the DRDO will now have to work on an indigenous missile that can be fired from the tank.

    In an exclusive interview to HT, DRDO chief Avinash Chander said, “The LAHAT missile doesn’t figure in our plans anymore. We are dropping it. We have been working on a tube-launched anti-tank missile, which hopefully can be configured for the tank’s cannon.”

    The Mk-2 variant is supposed to have nearly 80 improved features over the previous version, including more than 15 major technology upgrades.

    Chander said the LAHAT missile did not meet the army’s requirements of engaging targets at ranges of less than 1,200 metres. It has an effective range of 6,000 metres.

    The major improvements on the new tank include better firepower, integrated explosive reactive armor, advanced laser warning and countermeasure system, a mine plough, a remotely-operable anti-aircraft weapon, advanced land navigation system and enhanced night vision capabilities.

    However, the army may not be able to fully exploit the tank, powered by a German engine, as it is too heavy at 67 tonnes.

    The Mk-2 may be hailed as an Indian-made tank but it represents barely 36-38% indigenisation, compared to 60% on the Mk-1. “The indigenous quotient has fallen because the major improvements over Mk-1 required imports,” the DRDO chief said.

    The army raised its maiden armoured regiment equipped with Arjun Mk-1 tanks in May 2009, more than 35 years after the project was conceived. The Arjun was earlier plagued with problems concerning its fire control system, suspension and poor mobility.

    Currently, Russian T-90s and T-72s are the mainstay of India’s tank fleet.

    http://www.hindustantimes.com/india-...1-1266835.aspx

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