Arjun Main Battle Tank (MBT)

[Payeng]

Inside of this box, is machine gun sight, although I do not have a photo to show you how it looks like.

Is it how it should look like?

 

[Dejawolf]

Is it how it should look like?

no, it's a tiny little L-shaped periscopic thing. there's a mirror at the top that you look into, which reflects a crosshair.

 

[Kunal Biswas]

 

[Dejawolf]

some pictures:

 

[Payeng]

1 question for gurus, does western force use such type of an eyepiece in their tanks gunnery?

 

[ersakthivel]

I know you are unable to understand - You shown it previous.
Agian - slowly. Your argument that Dejawolf was wrong was:

But You where completly wrong. What was quite funny for me, becouse those yours " front mantel plate and the next holding plate(looks like the mantel plate)" is
"holder" to hold gun on one place in static exposition/test station (in your post you name this "front mantel plate") -and those element (marked by me on green) does not exist on Arjun tank. It's avaible only for sucht stand position.
And after that we have not mounted on gun gun mantled mask whit multialeryed armour (not on photo) and after that we have back plate when gun is mounted to the turret (in your post you name this as "next holding plate(looks like the mantel plate").
You just mxsed real "holding plate" in tank -where is munted gun to the turret whit "holder" to hold gun on one place in static exposition/test station (marked on green) and you even don't realize that there is no gunmantled mask whit multialyerd armour on those photo becouse it's not mounted on gun.
And that was quite funny, becouse you try to make argument against Deajwolf and STGN mesurment based on photo that you completly does not understand and interpretate completly worng.

The line drawing of ARJUN confirms that the first rectangular green plate is not just a "holder" to hold gun on one place in static exposition/test station.

Why?

The diameter of the gun doubles after the "holder" to hold gun on one place in static exposition/test station or mantel plate.

And as per the line drawing and the photograph the increased diameter gun length is enclosed within the "holder" to hold gun on one place in static exposition/test station or mantel plate and back plate and inside the tank behind the mantel mask with multi layered armor. So your explanation and DEJAWOLF 3d Model seems to be wrong on this count.

So the length of the gun behind the first mantel plate is intentionally misrepresented in his 3D model to suit his claim of LOS of 350 mm behind the main sight. And the separate gun picture exposes this mistake.

In the separate gun picture the diameter of the gun is the same(unchanged,does not vary with length) till the mantel plate. In the line drawing also the dimension of the gun is same (unchanged,does not vary with length) till the mantel plate.

So it is obvious that the mantel plate and the first "holder" to hold gun on one place in static exposition/test station share the same position in the ARJUN.


[/B]. It's position is the same as that of mantel plate in the following line drawing and photograph.

 

[Damian]

1 question for gurus, does western force use such type of an eyepiece in their tanks gunnery?

You mean the machine guns sights?

Well no. Some western tanks do not have a heavy machine gun, some have, these that have it, mostly have heavy machine gun mounted in powered cupola enabling it to be fired from vehicle interior without need to expose commander operating such weapon. Such powered cupola have it's own sights.

Several examples of such cupolas:

Chieftain commander powered cupola, that gives capability to fire machine gun on it's mount from vehicle interior, we can see empty slot for it's sight. Such powered cupola was also used in Challenger 1.

Here you have CWS powered cupola for M1/M1A1 and ICWS with manually controlled machine gun for M1A2. However these cupolas are currently replaced by:

SCWS powered fully stabilized cupola for M1A1. This cupola is fully stabilized and have new sighting system, both thermal and day.

The M1A2's receive currently as it seems short term solution in form of M151 CROWS remotely controlled weapon station but...

A long term solution is new ICWS cupola which is also fully stabilized, have new optical system (thermal + day) and provides commander with capability to use his machine gun from vehicle interior.

The AMX-30 also use powered cupola with machine gun for it's commander.

Other western tanks that do not had such powered cupolas, receive in most cases an RWS systems, for example Leopard 2 and Challenger 2 tanks have such RWS installed on turrets in some of their modifications.

 

[Kunal Biswas]

Arjun Wagons on Move >>


No Arjun on them though, Next time Perhaps..

 

[pmaitra]

Re: Arjun MBT prepares for potentially decisive trials

Texmaco made flatbed wagon for carrying Arjun Tank

Texmaco made flatbed wagon for carrying Arjun Tank

 

[Kunal Biswas]

Re: Arjun MBT prepares for potentially decisive trials

Yup, this is where i got the pic from, And looking for more..

Texmaco made flatbed wagon for carrying Arjun Tank

 

[pmaitra]

Arjun Main Battle Tank Mark I (this thread)
Arjun Main Battle Tank Mark II (click)

 

[The Last Stand]

Okay, This is going to be a very large post. I spent the past hour digging up the DRDO newsletter for news on Arjun technologies that were NOT posted here.

1. Advanced Automotive Electrical System for MBT Arjun - Nov 2002

DRDO DEVELOPMENTS - 2002

The Combat Vehicles Research & Development Establishment (CVRDE), Avadi, has developed Advanced Automotive Electrical System (AAES) for MBT Arjun. It is a state-of-the-art technology development programme with a processor-based control for the complete hull electrical system, MIL STD 1553B bus, touch screen display, data logging, and BITE capabilities. The system gives emphasis on optimum performance with better man-machine interface. With the use of this system, the crew will experience reduced fatigue levels and can concentrate on their primary role in a battlefield.

The system consists of Pentium processor-based dual controllers, viz., the hull controller with remote terminal units at engine and driver stations. It also includes driver's instrumental panel with electro- luminescent touch screen display, master relay box, etc. The engine's and driver's remote terminal units are identical. In case the active controller fails, the stand-by controller handles processing along with data communication without affecting its performance. Both the hull and the display controller remote terminal units control the function of the engine, automatic transmission, ancillary motors. fans, lamps and integrated fuel level monitoring of all the tanks, including the nose fuel tank.

 

[The Last Stand]

2. Defensive Aids System for Armoured Fighting Vehicles

http://drdo.gov.in/drdo/pub/nl/2009/mar09.pdf

Combat Vehicles Research and Development Establishment (CVRDE), Avadi, has taken up Development of Defensive
Aids System for Armoured Fighting Vehicles (AFVs) to enhance the survivability of the tanks against antitank guided missile threats and to reduce the probability of detection by the target acquisition systems.

Under this project, two major systems viz., Advanced Laser Warning and Countermeasure System (ALWCS) and Mobile Camouflage System (MCS) are being developed. MCS is to provide multispectral signature management of the vehicle to reduce the vehicle signature against all known sensors and smart munitions.

MCS system has been developed in collaboration with Barracuda Camouflage Ltd, Gurgaon. The system has been integrated on MBT Arjun and the performance evaluation trials have been successfully completed.

The methodology and the technologies can be adopted for any AFV platform. ALWCS system comprises laser warning system, IR jammer, and aerosol smoke grenade system. This is being developed jointly with Elbit Systems Ltd, Israel. The system will be integrated on MBT Arjun and performance evaluation trials are expected during summer 2009.

 

[The Last Stand]

3. 81 mm Anti-thermal, Anti-laser Smoke Grenade

http://drdo.gov.in/drdo/pub/nl/2010/feb10.pdf

HEMRL, Pune has also developed Anti-thermal, Antilaser smoke grenade. Antithermal, Anti-laser smoke grenade is effective against second-and-third-generation laser finders, laser target designators, laser beam riding missiles, passive night vision devices, and thermal imagers operating in 8 -14 µm range. It is electrically fired from the launchers fitted on the tank. The infrared screening smoke is produced at a distance giving visual as well as IR screening effects, particularly at the long
wavelengths on which IR detectors operate.

An 81 mm caliber anti-thermal; anti-laser smoke grenade based on red phosphorus has been developed by HEMRL to obscure visibility in the visible and IR regions and defeat laser range finders. The smoke grenade is of world standard. The grenade is mounted on either side of the turret of tank and electrically actuated from the MBT grenade launcher.

The grenade forms a white dense smoke screen on bursting above the ground, which is capable of providing obscuration in the visible and IR ranges, for more than 20 s. The smoke screen is capable of defeating the thermal imagers and Nd-YAG laser range finders.

 

[The Last Stand]

4. The Grand Finale: Gunnery Training Simulator of 2003 (Modern one is different)

Gunnery Simulators

Combat Vehicles Research & Development Establishment (CVRDE), Avadi, has initiated the development of simulators for MBT Arjun gunners under the project Gunnery Arjun Part Task Training Simulator (GAPTTS). Mass production of MBT Arjun is in progress and the users need training to use this state-of-the-art battle tank effectively and efficiently. The simulators will impart cost-effective, exhaustive and extensive training.

In this novel training methodology, training will be in steps of increasing content and complexity instead of having a single simulator which traditionally many other leading tanks in the world have. It will provide training in three stages:

. Classroom Gunnery Training Simulator (CGTS-Agastya)-A software-based version with soft panels for gunnery controls is aimed at teaching the functionalities of the various controls and switches present in the gunner station to a group of gunners in a classroom. It also includes bilingual (Hindi/English) online help for the gunners to independently learn the tank gunnery operations with the help of a simple mouse click.

Desktop Gunnery Training Simulator (DGTS-Agastya)- This aims at imparting hands-on experience to the gunners with replicated gunner station hardware. The procedural operation on the Integrated Fire Control System (IFCS) is taught. CVRDE in association with CASSA, Bangalore, has developed these two versions of training simulators.

Gunnery Training Simulator (GTS)- A full-fledged high fidelity simulator provides with advanced procedural, laying, tracking and firing skills to the gunner. This containerised, air-conditioned simulator systems has separate compartments for the instructor and gunner. The gunner has all the vital gunners' equipment positioned in the exact place as in the tank. This simulator has gunner seat vibration unit to simulate the realistic disturbances felt by the gunner during the operation. Specially developed piping optics integrated with gunner's day and thermal eyepieces provides the same field of view of the battlefield environment as in the actual tank. The instructor with his dedicated console can plan, conduct, monitor the exercises and evaluate the trainees based on their performance.

The GTS has been developed in a record period of 15 months in association with M/s Macmet India Ltd., Bangalore and two such systems are commissioned at CVRDE. Lt Gen Tej Paul, the then CC R&D (R), inaugurated the GTS unit at CVRDE. The user training on these simulators was carried out for the batch of gunners from 43 AR. Their feedbacks were received and incorporated in the simulator.

 

[AVERAGE INDIAN]

double post

 

[Dark Sorrow]

OMG 319 Pages and still going on strong.
Holy Cow there is one more thread regarding Arjun.

 

[Kunal Biswas]

Indian Armour and its advances is very interesting subject.. :cool2:

OMG 319 Pages and still going on strong.
Holy Cow there is one more thread regarding Arjun.

 

[ersakthivel]

Armor Basics
It has armor estimates of tanks.
it includes that of leopard also.

 

[militarysta]

Armor Basics
It has armor estimates of tanks.
it includes that of leopard also.

Whit all respect to Lakowski themself and his work - this is not very realible, and this version is far from truth.
Example:

The turret thickness ranges from 1000mm near the corners and 1300mm inthe middle 700mm along the mantlet, composed of a 50mm cover plate +600mm cavity + ? thickness back plate [300—700mm?].

No one diamension is correct in quoted tekst(!)

The same in case Soviet tanks, etc.

Those verion of "Armour Basics" is slighty old, and really not accurate.