Bharat Rakshak

Paul_L

<blockquote>quote:<hr>Originally posted by jrjrao:
Comments?
Israeli Tank Regarded With Pride (but what went wrong?)<hr></blockquote>
No tank is invincible!

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Paul, 2.Any "baseline" guesses for teh protection yet?Frontal in particular. :)<HR></BLOCKQUOTE>I think what I'll do is make two models , one b...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Paul, If you are there....1.Would ERA + Kanchan work "better" against a tandem warhead(designed to strip ERA in the first place) than plain kanchan armour?2...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Paul. The bakhtar shikan . <A HREF="http://www.krl.com.pk/htmls/atgmwsbs.htm" TARGET=_blank>http://www.krl.com.pk/htmls/atgmwsbs.htm</A> Regards, nitin</STR...

Paul_L

The Chinese missile is reported to do 800mm, but what can the TOW-2 do ~ 900-1000mm if you assume precision jet [1000-1100mm if you assume semi particulated jet]...against RHA target.Was Kanchan equipped Arjun tested against TOW-2?

Paul_L

The report of the reduced armor Vs HEAT for the Arjun comes from JoMO Vol10-[July 2000] pp 56.They report" Army officers are also said to be conserned that Arjuns armor cannot defeat Pakistan's Baktar Shikan ATGM (which is a variant of the Chinese Red Arrow-8) . These concerns have led to ca...

Paul_L

I agree with the multple layers of the insert being more than just a reinforced fibre composite and if DROD is so secretive then what we've seen of Kanchan armor is only the tip of the spear and some other compontent must be there.Normally with a western tank [ even all tanks now] I would assume ...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Nandai: Paul, are you sure about the UAE LeClercs being french standard? I have read several articles about these tanks, and all of them claim that these LeClercs use Europack instea...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Raj Malhotra: Re Paul:-You have said that the volume of Leclerc is 17.5 m^3. As I understand, Leclerc that were supplied to Dubai had their engine compartment enlarged. Is it corr...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by thoma: Paul why is the Brinell hardness number so important? If the armor were just hard it would shatter on impact, would other factors like toughness and ductility not have an equa...

Paul_L

Their was a report in a HongKong news paper that Arjun had HY-80 armor plates. These have a hardness of only 220 BHN [ similar to late model WW-II german tanks ] thats not to far away from mild steel [ ~ 180 BHN].Do you or anyone know what the hardness is on these armors?

Paul_L

From the JoMO VOl-10 # 4 pp56" Comments by a former Arjun Program manager also suggest that only the turret is fitted with Kancahn composite armor."Where did the idea of Kanchan adding 15 tons to the weight of the tanks come from?

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Sanjay: Paul, Here are the best dimesions I have available for Arjun: Dimensions Overall length {with gun forward) 10.638 m Overall height {with gun rear) 9.546 m <...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Sanjay: Paul, Arjun - volume calculations can be based on this:1) Arjun is roughly as long, slightly wider and marginally shorter than Leopard-22) It weighs 3 tons more.</ST...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Nandai: Paul, havent Sweden developed a 120mm HE round for the new Leopard 2 tanks, I think I have read something about such a round in swedish army magazines. Would such a round be ...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Shalav: Correct me if I am wrong, but I understand the principle behind the HESH would be spalling. If so, how would velocity matter? Doesn't the principle behind HESH mean...

Paul_L

SInce there are no rifling in a smoothbore gun their is less friction, therefore for the same ratio of charge mass to projectile- Sabot mass, you get higher velocity.In theory the barrels of the smooth bore gun last longer , also due to the reduced amount of friction.I've heard about the incre...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: We may claim that we field the most powerful-confirmed gun/ammo combination-the 120mm( the chinese 125M DU/Enhanced Tungsten not being confirmed).<HR></BLOC...

Paul_L

OK heres my updated take on the Type 90 [Al Khalid] armor , along with the usual provisos on the approximate nature of estimates.Turret front Armor mass : Its assumed the same internal volume as the Type 85 tanks and the armor mass is a increase over the Type 85s weight or 49 over 41.7 met...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Sanjay: Paul, Nitin and I are cooking up are real treat on the Arjun for your consideration ! Suffice it to say that something is probably awry with the estimates for Arjun arm...

Paul_L

Lecler is reported to be ~ 17.5 m ³ volume while LEO-2 is ~ 19.5 m ³ and M-1A1 is ~ 23 m ³ . I estiamte the Chinese type 85 [similar to Type-90] is ~ 12m ³BTW Nitin the LEO-2A5 is the same as the LEO-2A4 turret with slightly more advanced ceramic in the sandwich layers[JANES]. the wedge armor ...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Paul,No actually its the other way around in the west, 0° refers to a vertical plate while 60° refers to a sharply sloped plate. Then how does sloped armour w...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Sanjay: So Paul, how does the Indian 120mm FSAPDS compare to British Tungsten rounds and the German DM-33 ? At first glance, the round seems superior to the L-23 UK FSAPDS round a...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Thanks Nitn, yes I have your email but I take my time to answer where ever possible :) Heck, i got greedy. :) A few random questions... 1.The zero incidence/ob...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Sanjay, Paul 'll have to give a rundown of the brit apfsds versions vs the HAPP one..Heres some more interesting info...paul mentioned the pronit apfsds earlier on..Also...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Vick: A question from a layman, me:If the T-90s and the T-72s are 125mm why the concern with the 120mm ammo?<HR></BLOCKQUOTE>Because the 120mm gun is usually more powe...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Sanjay: In all probability 15:1 might have been retained. Other than that, there is no information, and even here we're guestimating.In terms of pictures, there is one at this lin...

Paul_L

<Quote> "Key to note is the increase in overall mass to 20.2kg, propellant weight to 8.46kg and muzzle velocity to 1650m/s.Again, the penetrator is an improved 105/125mm design." + 944mm round length </Quote> This info doesn't tell us much since most 120mm rounds have these vel...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Sanjay: Paul, Can now confirm that 125mm penetrator is a scaled up and improved 105mm.The density of the tungsten alloy used is apparently 17.8g/cc. Would this increased densit...

Paul_L

An alternative to the above 125mm APFSDS analysis is that the penetrator is a scaled up improved version of the 105mm APFSDS already designed . This way the actual penetrator volume is ~ 75% of the volume of constant diameter rod based on 30mm x 15 L/d. Thus the volume is adjusted from 318cc down to...

Paul_L

There are two significant variables in my estimate that definately could improve the penetration over all. Those are the V-Drop and the assumption of a sheathed penetrator. I was just looking at a 105mm APFSDS thats been developed for the Indian army that resembles the British L23 penetrator. I esti...

Paul_L

Indian 125mm APFSDS <A HREF="http://www.drdo.org/products/fsapds.htm" TARGET=_blank>http://www.drdo.org/products/fsapds.htm</A> Indigenous development of the 125mm APFSDS for the Indian T-72 and T-90 tanks . The projectile is reported to be have a L/D of 15:1 and a MV of ~ 1550 m/s. But...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Raj, Paul,That L/D ratio is from this link.Muzzle velocity given in Raj's post. <A HREF="http://www.drdo.org/products/fsapds.htm" TARGET=_blank>http://www.d...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by nitin: Various aramid reinforced ballistic composites of various thicknesses ranging from 5 to 40 mm have been designed and developed to meet the requirement of protection level of 1...

Paul_L

Ok some comments and info, most modern 105 APFSDS can penetrate NATO triple heavy target @ 4-6km range so this round looks deficent to me!ERA will effect APFSDS rounds,the original idea for ERA was a layer of explosives sandwich between two thin 2-3mm plates that are driven appart at high velocit...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Raj Malhotra: Paul if you are reading this thread then would u like to discuss what in your view is better option Arjun (almost like Leo-IIA4 firing single piece semi combustible rou...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Raj Malhotra: Re Paul Welcome back.......Actually I could not respond at that time as I was off the net due to some problems for a month or so. I am posting rather than giving pm ...

Paul_L

Good day its good to finally get back on to this site...since so much has changed over the last few months.On the topic of Russian views of their tanks, a T-64 tanker told us on Tanknet last year , that they would take 20 seconds to get a shot off at a target 2km away firing FS HE shell.They d...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Raj Malhotra: Paul I have been dying to ask this q:-If you want to achieve say LEO-II type of armor thickness what would a T-72 weigh with its smaller internal volume?<HR></BLOC...

Paul_L

<BLOCKQUOTE>quote:<HR>Originally posted by Rudra Singha: All said and done the Al-Khalid ~45t and T-98 is 48t. same for T-90.So you can guess how much protection and redundancy they can have compared to NATO sized MBT...

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