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Is there any comparison between Arjun Mk I vs Tank-Ex w.r.t. range and accuracy?

Take away: Sabot (APFSDS) round through rifle. Thermobaric rounds (impressed by TOS-1 in Syria?). This picture accompanying the article is an example of Indian journalism.

National security is paramount, and DRDO has to attempt to do whatever is asked of it. If national security were not an issue, DRDO would have been fully justified in refusing to touch any of the expensive and imported arm candies procured by these IA and IAF officials.

Arre yaar, goli maro tank ko, it looks like we have some serious issues with the recruitment and promotion process. People hired in the army must be thoroughly vetted as to their loyalty to the nation. Our nation can never be self sufficient and will never be able to stand on its own feet when...

Ok, we are done with stale information. Let's move 15 years ahead: Report from 2010. Arjun tank outruns, outguns Russian T-90 I have highlighted the names of the people who witnessed the comparative trials. This news has been posted in DFI several times before. Apparently, our friend...

I disagree with you using that number "thirty." Please read all the discussions about the Arjun tank.

Please introduce yourself by opening a new thread here: http://defenceforumindia.com/forum/s/introductions-greetings.5/ Also, welcome to DFI.

That is what I have been looking for. So, if I take the hatch-lid height as 400mm, I would get approx 363mm for the behind-sight armour.

Yes, that is why I said I am not very sure about the actual front to back width of the crew hatch hole. So I just placed different numbers and their corresponding values.

y = x(0.907889) Let me tabulate this for different values (refer to link in quote): x y 450.00 408.55 500.00 453.94 550.00 499.34 600.00 544.73 (in millimetres)

y = x(0.633444/0.697711) I made a mistake. I will correct it. Corrected: http://defenceforumindia.com/forum/indian-army/9558-arjun-main-battle-tank-mbt-post785330.html#post785330

@ersakthivel, ok, I get it. It is coming as 1.007 units, so yes, you are right, the bar holder (front left) is approx. 1 unit, and the hatch is 0.697711 units.

Can you mark which bar holder you are talking about? There are many bar holders in that image. Once again, mark it, upload the image, and then post.

Where does 0.69 come from? Where is 500mm? I can see 520mm, but no 500mm.

So, that would be in the vicinity of 50-60cm, or 500-600mm, or approximately half a metre. So, I guess our estimates are about correct.

@ersakthivel, Frankly, I am having dificulty understanding your posts, so I am neither agreeing or disagreeing with you. I really do not know what you are saying. Do this, when you have time. Download these pictures and save them on your disk. Create a PowerPoint, and paste them there. Use...

I think we have all presented our numbers. So, we can lay this to rest. We can only corroborate if someone (perhaps @Kunal Biswas or @sayareakd?) visits this tank and takes some real measurements.

@militarysta, thank you. I think our numbers are more or less same. I have one concern. I think I am not very sure about the width of the crew hatch (x in my figure) in terms of circumference through centre to centre of chord. If I can know that, I think my formula will give a reasonable...

Reference image. Schematic image and calculation. The final formula is in red. Plug in x to get y.

Please show me your calculations and mark on the image, as to how you arrived that that 600mm value. Otherwise, I am not sure what you are talking about. What is a pivot base? Are you taking about the hatch-lid-hinge?