Armoured Vehicles Discussion Thread - Jan 12, 2012

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rohitvats
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by rohitvats »

This is very interesting...IA was had shown interest in the US Stryker system and the TATA product can very well fit the bill. IA needs more mechanized formations as of yesterday and a domestic product will always make more sense.
SaiK
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by SaiK »

didn't they cancel javelin?
pralay
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by pralay »

didn't they cancel javelin?
We have Nag, that can be integrated on it. Hopefully fairly quickly. :mrgreen:
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by John »

^ Spike perhaps or man portable Nag but current variant of Nag is too large. WhAP concept is interest when it comes to turrent we already have the OFB 30mm CRN 91 30mm turret not sure why it can't be modified and adapted for this purpose.
vonkabra
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by vonkabra »

The glacis plate of the Arjun Mk II displayed in the Republic Day parade has some interesting rectangular indentations. Could they be placeholders for additional ERA bricks to protect the tank front?

On another note, it was interesting to see the multitude of desert camouflage schemes on display on IA armoured vehicles. In previous Republic Days we've also seen tanks sporting the 'digital' desert camouflage as well. Doesn't the army use standard camouflage schemes or are individual units allowed to paint their vehicles depending on local conditions?
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by d_berwal »

rohitvats wrote:
This is very interesting...IA was had shown interest in the US Stryker system and the TATA product can very well fit the bill. IA needs more mechanized formations as of yesterday and a domestic product will always make more sense.
Some facts on WhAP from g o o g l i n g :

- Its a TD vehicle
- Designed by VRDE
- TATA is a development agency and was choosen through a tender
- There are 2 prototypes
- 1 with 30mm Turret (http://www.kongsberg.com/en/kps/product ... ctormcrws/ )
- and 2 with RCWS (guess same as on ARJUN Mk II + 6/8 crew compartment
- Design is modular 22.5 tons to max 26 tons depends on add-ons
- Designed for amphibious ops up to 22.5 tons
- All independent suspension
- Independent double wishbone suspension for front 2 axle
- trailing arm suspension for rear 2 axle
- push button 8x8, 8x6, 8x4 and amphibious drive options, CITS and ABS equipped
- total 8 seats second proto, 1 driver, 1 RCWS operator and 6-8 crew, blast resistent seats form Jankel UK
- It also features sock attenuation foot pads from MKU kanpur
- The IPR in respect of overall concept and configuration of WHAP and its variants in the areas of survivability, protection and amphibious design will be with VRDE.
- IPR for manufacturing, tooling, jigs and fixtures, assembly procedures will rest with DA.

- TD project total 23 months from start to Acceptance test :)
Pratyush
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Pratyush »

To me the tata vehicle is even more interesting simply because to the best of my knowledge this is the first time a DRDO lab has partnered with a pvt sector Indian co to develop a weapon system of this type from the scratch. Prior to this, subsystems were designed for DRDO Labs, by pvt players.

A sign of times to come. Look forward to the completion of the test programme.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Shrinivasan »

rohitvats wrote:
This is very interesting...IA was had shown interest in the US Stryker system and the TATA product can very well fit the bill. IA needs more mechanized formations as of yesterday and a domestic product will always make more sense.
Was this developed independently or as part of the FICV program. These wheeled ICVs would add significant bite to our mechanised Infantry and hasten the conversion of more RAPIDs.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by merlin »

FICV is for tracked IFVs isn't it? Looks like its dead in the water with little progress on that front. A wheeled ICV has its uses but I don't know how much it will help the Paki facing strike corps given the terrain.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by arijitkm »

Poor Israeli parts delay Arjun Mk-II TNN
After the recent heartburn with Israeli counterparts in the Long Range Surface-to-Air Missile (LR SAM) and Medium Range Surface-to-Air Missile (MR-SAM) joint ventures which has resulted in delay of delivery in both these cases, Defence Research and Development Organisation, the premier defence research establishment in the country, is finding another of its major project, the Main Battle Tank Arjun Mk-II, hanging in the balance. DRDO is attributing the delay to the unsatisfactory functioning of some Israeli components, the major amongst these being the Laser Homing Attack (LAHAT) Missile.

According to official sources, almost 55 to 60% of the components and major part of the technology in Arjun Mk-II MBT are imported starting from the design to engine and the engine transmission system, gun barrel, computer-controlled integrated fire control system, the tracks, the suspension, and the Muzzle Reference System etc.

The German engine of Arjun Mk-I has again been integrated in Mk-II despite claims of an indigenous engine, as per the sources. When contacted, officials attributed this adjustment to the small order and that a separate plant for manufacturing engines cannot come up for such a restricted order. Sources revealed that Arjun Mk-II has a long way to go before being accepted by the Indian Army.
......
......
Apart from accuracy, smoke emanating from the Israeli LAHAT missile has been an issue of concern with both the developers as well as the users of Arjun Mk-II. "Israeli counterparts have been conveyed the issues and asked to rectify the problems at the earliest," was all Avinash Chander, secretary, defence research and development and director general, DRDO, could say.

Arjun Mk-II, the futuristic main battle tank, has been touted as one of the most potent combat tanks for the Army with unmatched automatic target detection and destruction while offering maximum protection to the crew in addition to impressive speed and maneuverability.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by uddu »

The MkIII variant work can now begin. It can have a three member crew with autoloader. This can save on space, armour and weight. We can quickly develop and deploy such a tank in thousands.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Shrinivasan »

merlin wrote:FICV is for tracked IFVs isn't it? Looks like its dead in the water with little progress on that front. A wheeled ICV has its uses but I don't know how much it will help the Paki facing strike corps given the terrain.
Marlin, FICV has both a wheeled and tracked version. If I remember correctly, both TATAs and Mahindras showcased both variants in DefExpo. In the Paki context, provided they have Low ground pressure, they can traverse the desert dunes (remember how the Israelis tore thru the Sinai in their Wheeled APCs in the 70s.), In the plains of Punjab or the mountains / valleys of J&K, the wheeled variant will be a better bet than the tracked one.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by svinayak »

d_berwal wrote: Tata motors to unveil ‘WhAP’ at Defexpo 2014 | idrw.org[/url]

This is very interesting...IA was had shown interest in the US Stryker system and the TATA product can very well fit the bill. IA needs more mechanized formations as of yesterday and a domestic product will always make more sense.

Some facts on WhAP from g o o g l i n g :

- Its a TD vehicle
- Designed by VRDE
- TATA is a development agency and was choosen through a tender
- There are 2 prototypes
- 1 with 30mm Turret (http://www.kongsberg.com/en/kps/product ... ctormcrws/ )
- and 2 with RCWS (guess same as on ARJUN Mk II + 6/8 crew compartment
- Design is modular 22.5 tons to max 26 tons depends on add-ons
- Designed for amphibious ops up to 22.5 tons
- All independent suspension
- Independent double wishbone suspension for front 2 axle
- trailing arm suspension for rear 2 axle
- push button 8x8, 8x6, 8x4 and amphibious drive options, CITS and ABS equipped
- total 8 seats second proto, 1 driver, 1 RCWS operator and 6-8 crew, blast resistent seats form Jankel UK
- It also features sock attenuation foot pads from MKU kanpur
- The IPR in respect of overall concept and configuration of WHAP and its variants in the areas of survivability, protection and amphibious design will be with VRDE.
- IPR for manufacturing, tooling, jigs and fixtures, assembly procedures will rest with DA.

- TD project total 23 months from start to Acceptance test :)

Indian expeditionary assault force will need this AFF formation in the plans of Central Asia and other fronts again PRC.
Once the Pak geography is under the control India needs to expand outward and this Expeditionary Fighting Vehicle will be the primary force for all the land expansion in the Eurasian landmass,
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by srai »

uddu wrote:The MkIII variant work can now begin. It can have a three member crew with autoloader. This can save on space, armour and weight. We can quickly develop and deploy such a tank in thousands.
Unmanned turret would be another option for weight savings. Another option would to use lighter weight Kanchan armor DRDO had developed for Tank-Ex since ERA are being added on.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by vic »

The only way to reduce Arjun weight is to use 3 men crew, unmanned turret and advanced (smaller engine). These changes should bring down the weight to around 45 tons.
RKumar

Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by RKumar »

It is a hopeless for people who are working on Arjun project. I salute their motivation.

While inferior tin cans are being inducted and Arjun is still doing tens of around of validations :((
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by pralay »

uddu wrote:The MkIII variant work can now begin. It can have a three member crew with autoloader. This can save on space, armour and weight. We can quickly develop and deploy such a tank in thousands.
vic wrote:The only way to reduce Arjun weight is to use 3 men crew, unmanned turret and advanced (smaller engine). These changes should bring down the weight to around 45 tons.
That will be totally new design and a new product. Its best to not call it Arjun in that case.
Idea of having a second project for medium weight tank with technology of arjun is fine, But thinking to reduce weight of a tank by 30% is nightmare.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by srai »

^^^

It should be iteratively progressed towards those goals in Mk.3, Mk.4, Mk.5 and so on.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by pralay »

srai wrote:^^^
It should be iteratively progressed towards those goals in Mk.3, Mk.4, Mk.5 and so on.
Very true that their should be Mk3/4/5, but we shall not attempt to convert it to a medium tank in in, rather we should focus on improvements.
For medium tank we should start it as completely separate project, provided army knows clearly what they want in their tank of future.
That way we will have both heavy and medium tanks and wont have to run for shopping if someone gives heavy tanks to pakistan.
srai
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by srai »

^^^

Agree. The real problem is the IA wanting one tank that is both a medium and heavy tank.
Karan M
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Karan M »

I propose 9 units for Mk3, 10 for Mk4...and so forth till magical number of 124 is reached. Then i ask why not 100% indigenous onlee and ask for Mk n+1.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by member_27581 »

Just curious, if anyone from BRF coming to DefExpo2014? I have registered as a general visitor.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by uddu »

MK-III

The reason to have a three member crew is that the need for the fourth person may not be as necessary as before in todays battle field. And the advantage of loading of the rounds faster is the positive thing in terms of manual loading of rounds.
With the capabilities of the manual loading process be available in auto loading, and help in reduced size and weight. This must be decided based on the time required to make the tank a three crew operated weapon platform. The Mark-II came quick and similary if the Mark-III can be developed faster then its a good option to try.

If not, then it's better to try to have a FMBT within a reasonable time frame with the available technologies of today. This tank mostly to be a three member tank with turret housing the ammo and autoloader and the crew within the hull will be a really good.

Also if needed the two projects can be started together to give the army one light tank of around 48 tons which can be a replacement for the three member T series tanks and also can be inducted much faster before the FMBT project is completed with uber technologies like driver and tank commander looking at the enemy and firing missiles like today's pilots. :)
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Pratyush »

It is too soon to write offthe 4th member of the crew as unneeded. In tomorrow's battle field, you may still need to have some one to manage the various electronic systems along wth the control of drones. Imo, it is only a matter of time before someone manages to integrate a drone that can be controlled by a tank. The rws will need to be handled. So you will need the 4th crew member, even if the tank has an autoloader
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by uddu »

That work is done by the control and command vehicle.
http://en.wikipedia.org/wiki/Future_Com ... d_Vehicles.

Also the UAV's operated by the armed forces will be relaying the information down to the tank commander providing him realtime data enabling him to take the right decision.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Austin »

MADE IN INDIA-Arjun MBT Special Program

Can some one translate key points in English

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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by ArmenT »

^^^^
Translating in multiple posts so I don't exceed size limits. Also omitted some banter by reporter:
DISCLAIMER: All translation errors are mine and I'm not Tamil ethnicity either.

First two minutes (intro): Guy says he's speaking from the CVRDE campus in Avadi on Republic Day. He says Avadi stands for Armored Vehicle and Ammunition Depot of India, a fact he only found out that day. Then he says we will talk about this tank and all the matters behind it. Mentions commander, driver, gunner and he's going to talk to many people behind this tank.

1:55 First he talks about the Arjun Mark II engine at the Engine Test House. Dept. head of this area is Mr. Swaminathan, Engineers Karthikeyan and Muninathan. Mr. Swaminathan says the engine is 1400 HP, about 10 times the power produced by a car or a truck engine. For a 60 ton MBT, it can take it about 70 kmph on normal roads. He says in this area, they do quality control of the engine. Each engine does 40 hours here, of initialization test, followed by performance test and then endurance test. They test for full power, look for problems, leakage etc. here, after which the engine is fitted into the tank.

Every tank engine does 40 hours here. He breaks it down as first 7 hours, they do initialization and tuneup. Once that is done, performance testing is done for the next 23 hours, after that the remaining 10 hours is endurance testing. He says, engine weight is 6.3 tons, including both the engine and the transmission combined (i.e. total power pack). He says that the engine and transmission are fitted as one unit.

He then mentions the crane and talks about using it for high-temperature/low-temperature air intake testing and says after this, the engine goes for assembly/

5:45 - He's talking to Mr. Balaguru, a scientist in charge of design and development. Mr. Balaguru says that compared to Mark-I variant, this one has 89 improvements to it. Of these, 19 are major improvements and 70 are minor improvements. Then he talks about the mine plough that attaches to the front and keeps the tracks safe from buried mines. Then he talks about the ERA in front and explains that ERA = Explosive Reactive Armor. He says that if an enemy tank launches missiles or HEAT warhead (shaped charge), which have excessive penetration, this ERA armor helps neutralize them, which is a major improvement. Then he talks about the CPS (Commander's Panoramic Sight) on top. Commander can use at night or dawn and can use it to engage an enemy tank or designate it for gunner. This feature is called Hunter-Killer capability and is built in. He says it has a 2 to 2.5 km optimum range to inflict max. damage. It has missile capability to engage enemy at longer ranges. He says it can neutralize enemy tanks at 5 km. ranges because of the missile firing capability. Then he talks about the Laser Warning systems. He explains that enemy troops will paint a tank with a laser to find out range, before firing (Laser Range Finder or LRF). They use it either to designate or determine target distance or use it for a beam-riding weapon. The laser warning system detects their laser and figures out the angle it is coming from. On top of that, there is a rotary grenade launcher that creates a smoke screen in front of the tank, so enemy laser cannot be used as a guidance for the missile and in that time, it gives the tank a chance of scoot off elsewhere. Then he talks about the remote control weapon station. He says in the Mark I system, they have a gun for aerial targets + against human targets at longer ranges. The difference between Mark I and Mark II is that in Mark I, the loader has to come out of the tank to fire it, whereas in Mark II, they can acquire target and fire from inside and no need to come out. He says one more major improvement is that despite ERA and mine plough, vehicle weight of Mark II is only 4 tons more than Mark I. He says final drive that drives the tracks is also improved here for more torque. Also says that when driving in loose sand or rough terrain, if the driver is inexperienced, there is tendency for track shedding, therefore these tracks are designed for increased wall weight, so it can be used even by inexperienced drivers without causing track shedding. He also says that since the tank is in a different weight class than Mark I, the hydro suspension is redesigned and it is indigenous and CVRDE made. Reporter asks how many team members are involved in building a tank. Mr. Balaguru agrees it is team work, but says he can't reveal how many. He also says one more big thing about this is that the improvements were all done within 2 years from start to handing for user trials.

11:30 Talking to Program Manager Mr. V. Balamurugan (Caption says he's managing director). He also mentions that there are 89 improvements and done in 2 years from 2010 to 2012. He says CVRDE has 12 different design divisions, each one does its part in the final assembly. He says that aside from these 12 divisions, DRDO has 6 other establishments that also contribute parts to the tank. He says his role is to coordinate these 12 divisions + 6 drdo labs. He says tank has number of stakeholders: army, DGSE, production agency etc. He says they involved all of them very early on in the design stages and got technology transfers done (apparently his job) and got necessary workers etc. did several meetings and figured out how to manage the program up front. He says tank did trial run and says something like 1000+ KM (didn't catch exact number except for 1000 part). He says they discussed what trial activity would be done to the tank and he mentions there are more trials coming. He says after trials comes production, and with production comes making sure the needed facilities in production agency are set up and ready, by the time the Army accepts the tank. In other words he makes sure that there is no delay between development acceptance and production stage. He says they are working on it and have drawings and documentation prepared for the user (EME). He says that it will take 3 years (i.e. 36 months) to produce the tank, but maintenance life is 30 years. So for it to be maintained for 30 years, they do all the planning up front, so that when the tank is released, the maintenance stuff is already planned for.

14:45 - He talks about the person in charge of the running gear, Mr. Solomon. Mr. Solomon says that the tank does not only run on roads, but is a cross-country vehicle. Country has desert terrain, river terrain, dunes, mountain terrain. He says this tank has to negotiate all kinds of terrain, so running gear is a very important system. He says the track is a chain rubberized track. He says that when the tank is running on a road, it should not ruin the road, but it should also be flexible when going cross-country. He says to do this, the suspension is a very special system. He says that this is the first time in India that this is 100% indigenous system made in India, design, development etc. He says it is a hydro-gas suspension system, has nitrogen gas and oil in the shock absorber. He says wheels are solid rubber and wheel can travel 537 mm. total and this helps negotiate all terrains. If this running gear system was not there, it could not negotiate cross country terrain.

(more coming up....)
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by merlin »

Many thanks for the effort ArmenT!
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by ArmenT »

Part II

17:35 He's in the simulator operating area. He says that in very simple terms, a simulator is sort of like a video game. He says that for example, it is not possible to drive in F1 race, but we can sit at home and play something that feels somewhat like it. He says that this is a simple simulation, but Arjun Mark II simulator is bit more realistic, controls are like interior of tank, how gunner shoots, how commander operates, all can be done inside.

Person in charge of simulator says that you get all the vibration and feeling of driving a real tank in operation -- whatever disturbances you feel in real life, you will feel inside the simulator. Can also simulate different environments -- fog, dust, storm effects, evening conditions. Drivers can practise in varied conditions. They learn how to start it, how to stop it, what procedures to do in emergency situations etc.

Then they go driving and the reporter points to a simulated cement block in the distance. When they get to it and climb it, he says it feels like climbing the real thing. Next, coming up is a big gap between two cement blocks. He gets to feel how it feels and points that viewers can see the screen also moves as though the gap is real.

Next he talks about simulating night vision. Guy points out that in wartime conditions, they don't use headlights. He says enemy can tell where they are if they use headlights, that's why they use Passive Night Vision Device (PNVD). He says that if you're looking outside in the dark, you cannot see anything, but the driver can see much more through his display upto 50 meters. Guy says only driver can see it, so reporter asks what about gunner. Guy says gunner has his own thermal effects sight. Commander also has his own sight. He repeats that driver's sight is much better than what someone outside with naked eye can see.

Next reporter talks about firing conditions and mentions that the simulator vibrates realistically as though a real gun is fired. Next is fording exercise - i.e. how to go into water obstacle and outside it.
Reporter goes into little more recap and then thanks Mr. Anbazhagan (chap in camo uniform).

23:30 He's going to talk to CVRDE director Mr. P. Shivakumar. Dr. Shivakumar explains CVRDE = Combat Vehicle Research and Development Establishment. He says Ministry of Defence takes care of all services, Army, Navy, AF. Then we have DRDO - Defence Research Development Organization. Then there are other labs, of which one is CVRDE. CVRDE role is only combat vehicles. Of these combat vehicles, CVRDE is mainly responsible for tracked vehicles. He explains car, bus, etc. are wheeled vehicle and tanks are tracked vehicle and can do all terrains. He says CVRDE was originally there to support the Heavy Vehicles Factory, but now they participate in many products for Army, artillery, air force, navy etc. Main product here is Arjun MBT and he says earlier tanks were imported, or for tanks like vijayanta, T-72 it was just transfer of technology. However, he says today, Arjun, we are proud to say, it is made in India and used by us. It is the first of its kind, made for India's requirements, for indian terrain. He points out that if you look at T-series tanks, they are built for Russia's needs, not Indias. He says, if you look today, Arjun Mark I has two regiments. He says they have 45 tanks per regiment, so there are 90 tanks fully functional in there and total of 120 tanks produced. He mentions comparative trials between Arjun and T-90. He says Army was very happy with tank. He points to Mark I on right and Mark II on left and says that it took 30 years for Mark I, but only 2 years for Mark II. He says DRDO has 4 labs and of these, CVRDE only takes responsiblity for tracked vehicles and don't do mini or micro vehicles. He says Army didn't say we want X technologies, but they looked at what was available around the world and saw what was needed for India and there was need for something for low-intensity conflict. He said, big factor in low-intensity conflict are mines. He points out how many CRPF people are killed, so mine reduction is big, so they developed a vehicle for mine reduction. Another matter is surveillance, he says something about if you look in Thiruvanmalai now, there's a UAV flying above. Third factor is Nuclear-Biological-Chemical threat. If you look at all these factors, Army has some old BMP-2 infantry tanks which they modified from manned operation to tele-operation. He says that tele-operation means that they can sit in a base vehicle and operate through camera from distance of 5 km., which they have fully proven. Now they've improved that to 20 km. distance. First they want to prove tele-operation at 20 km. and then want to go for fully autonomous vehicle. Fully autonomous means no need for human operator. He says with tele-op you can protect an island, operate the UGVs from the center.

Then talks about mine reduction. He says that they have a vehicle driving with sensors in front. He mentions that one sensor technology is not enough and so they have to use 2-3 different technologies sensors that work together to ID a mine. After they ID and mark the mine, they have to remove it.

Reporter asks if Mark II is 100% indigenous or are there any outside parts. Dr. Sivakumar says that no country uses 100% indigenous tech. He also says that when you look at numbers, even though cars are produced in lakhs, they are still importing stuff because we can't do it all ourselves. So what they are doing is first see what is already available in India or can be produced in short time and whether there is industrial support. Then he says they were given 89 improvements of which 19 are major and says that to develop the tech for these takes 4-5 years. So based on that, they decide what to import and says they can't just import anything arbitrarily, but should get proven technologies. So they decide what to import and what is made indigenously. Now if you look in Mark II, there are several new technologies, one is missile firing capability. Without that, your loader has to come out to fire at threats, but Mark II has RCW (Remote Control Weapon System). Then he mentions the laser warning system and the smoke grenades that form a screen to hide the tank. He mentions the ERA armor and chemical threats. He says in these technologies, we've done a lot ourselves. He says there are big differences in suspension between Mark I and Mark II, because of difference in weight category and they had 20 years to iron out all the problems. He says with the Mark I, if the driver were to steer it on the side of the mountain without knowing about how to negotiate it properly (e.g. not angle the stick right), it is possible to detach the track. In order to avoid that human error factor, they've redesigned tracks in Mark II. Then he talks about cost of production of tanks. Dr. Sivakumar says currently Mark-I costs about Rs. 24 or 25 crores. They haven't estimated or negotiated cost of Mark II yet, only dev. expenses for the prototypes have been around 140 crores. He says right now, 30% of the cost is going out in foreign exchange. However, he points out that if you make 1000 tanks or 1100 tanks, then you can see cost advantage and the unit cost will drop drastically. They can decide cost only after they know how many tanks to make.

Then reporter asks how they test how everything in the tank works. Dr. Sivakumar says that during development & production, they can only do limited trials in Avadi, because Avadi doesn't have all terrains to test with. They test the automotive side (i.e.) how it performs on flat surfaces, then test against gradients, obstacle clearance, side slope etc. But you have to consider where the tank is being used. For instance, Arjun is needed in the border, where there are desert conditions. And in those conditions, temperature goes to 55 celsius in summer. So they do limited testing in Chennai and then transport it 2500 kms. to the border, which takes 20-25 days. When it gets there, there are two important areas. One is mahajan? (marasan? couldn't hear it exactly) and other is pokhran. These are firing range areas. In those areas, there is loose sand and dunes and high temperature. One more thing with the sand particles is that they are as fine as talcum powder. Here they test the engine air filter capability, cooling system capability etc. So they take them there and do two types of trials: First is automotive trials, how does it handle gradients, desert, loose sand, sand dune, hard sand etc. which we test to satisfaction. Then there is firing test, whether with small arm or main gun, they fire it first. They make sure it performs to the requirements and after doing these trials, it is handed to user. As far as user is concerned, when they go to trial, they are given a set of trial directives and they test how everything works: track, firing, electrical, suspension, sights etc. full trials With Mark II they started trials in July 1st to August 2013 and did over a year worth of trials and tested every subsystem. Mark II logged over 3700 km in the Army's own range + the 2000 km in Avadi's range for a grand total of 5700 km. Then he talks about the missiles and the tank armaments. Main gun is 120 mm. rifled bore, which they check for 2 to 2.5 km. ranges, also testing at night and when tank is static or when tank is moving or when enemy target is static, all scenarios are tested for firing purposes. For missile testing they do them at min. range of 5 km. at least, though he says it can do 6+ km. They've tested with 22 missiles.

Final question reporter asks is if CVRDE is only making tanks for India or are there plans to export to some other countries. Dr. Sivakumar says there have been enquiries from other countries, but India's MoD has to take the decision to export.
sattili
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by sattili »

Excellent! good information. Thanks for translating it for us ArmenT
Karan M
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Karan M »

Thanks Armen T!
--
Hats off for the intense effort to test MK2, 5700 km of tests, 22 Lahats...
Austin
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Austin »

ArmenT , Thanks for Translating
Jaeger
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Jaeger »

^^Thanks for the translation, ArmenT. BTW, at 13:18 & 26:14, you can catch a glimpse of the Karna prototype. *sigh* imagine what a Karna Mk.II would do for our T-72 force right about now...
rkhanna
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by rkhanna »

Its high time India sent the Arjun to this:

Tank Biathlon 2014 World Championship rules and invitation
http://www.liveleak.com/view?i=b57_1391 ... 1#comments

The defense ministries of five states have declared the intention to use their own hardware in the tank biathlon 2014 world championship, Russian Armed Forces Main Combat Training Department head Lt. Gen. Ivan Buvaltsev said on Thursday.
"Five states said they would drive their own vehicles in tank biathlon 2014. These are Ukraine, Greece, the Czech Republic, Italy and China," the general told foreign military attaches in Moscow.
In Russia even tanks practice biathlon
US, Italy to compete in Russias next tank biathlon
The delivery of tanks to Russia is being arranged, he said.
A source from the Russian Defense Ministry told reporters that tanks of Ukraine and China would be transported to the competition venue by rail. An approximate cost of the round trip exceeds 4.3 million rubles ($124,400).
Tanks from the Czech Republic, Italy and Greece will be transported by military transport aircraft. It has yet to be decided whether the planes will belong to Russia or the foreign participants in the tank biathlon event.
Tank biathlon 2014 will be held at the Alabino range in the Moscow region from July 26 through August 16.
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Viv S »

Can you take a picture of the turret's right side, if possible? Whatever gadget was there now appears wedge-shaped. Surprising since it should have offered negligible protection in the first place, can hardly take advantage of deflection. Its composition is likely very different from what we assumed.
Austin
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Austin »

Thats from Prasuns blog I am not covering Defexpo.
ArmenT
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by ArmenT »

Viv S wrote:Can you take a picture of the turret's right side, if possible? Whatever gadget was there now appears wedge-shaped. Surprising since it should have offered negligible protection in the first place, can hardly take advantage of deflection. Its composition is likely very different from what we assumed.
If you look at the video posted by Austin above at around 06:58 (and my translation above), Mr. Balaguru points to it and says it is the CPS (Commander's Panoramic Sight).
Indranil
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by Indranil »

ArmenT wrote:
Viv S wrote:Can you take a picture of the turret's right side, if possible? Whatever gadget was there now appears wedge-shaped. Surprising since it should have offered negligible protection in the first place, can hardly take advantage of deflection. Its composition is likely very different from what we assumed.
If you look at the video posted by Austin above at around 06:58 (and my translation above), Mr. Balaguru points to it and says it is the CPS (Commander's Panoramic Sight).
Nope the CPS is actually above the turret, next to the anti-aircraft gun (it is in the same direction that Mr. Balaguru was pointing). In this picture, it is covered by a brown box.
Image

This is the CPS of Arjun (called COAPS from Elbit) looks like this
Image

You can see it from the republic day parade (click for higher reolution:
Image.
srin
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Re: Armoured Vehicles Discussion Thread - Jan 12, 2012

Post by srin »

Thanks Austin.

I'm checking if there is increase in the ground pressure. The first image says it is 0.093 N/sq.mm. The specs for Mk1 has it at 0.84 kg/sq.mm. Is that same or different ? (sorry, forgotten basic unit conversions)
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