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Object 705A (IS-7's big brother)

IS-7 heavy tank upgrade Object 705A

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Battle_Panda_59 #1 Posted Nov 08 2013 - 20:27

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I'm a daily reader of the popular For The Record blog and i saw an article i'd like to share. Yes, i know most of you read the blog and know its contents as they arrive, this is mainly for those who do not read it. I put it in quotes and kept in the source and author just for the nit-picks, and even quoted the original article :P

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Source: Yuri Pasholok’s blog
Author: Yuri Pasholok

Recently, Yuri Pasholok found a proposal for a very interesting IS-7 variant. What he writes in his posts is this:
IS-7 (Object 260) is one of the peaks of Soviet tank development of the late 40′s. Along with that, Object 260 was not alone. While NII-100 (SS: Soviet technology research institute No.100) was working on its project, in Chelyabinsk a new generation heavy tank was developed – the Object 705. The vehicle was supposed to have roughly the same characteristics as Object 260, but the tank design (arrangement) was different. On paper (in the project) the tank was supposed to have the 122mm BL-13 gun, but unlike Object 260, it was supposed to have the turret in the rear. This vehicle (Object 705) requires more serious research, but it’s possible to see how the vehicle would look like.

Posted Image

However, both the Object 705 and Object 260 were not the apex of the evolution. Apart from the Object 705 65 ton variant, Chelyabinsk design bureau worked on a 100 ton variant, designated Object 705A. It was different from the 65 ton variant in two things: armor and gun. And when it comes to the gun, we know what it would be: the 152mm experimental gun M51. Considering the Object 705 had (with 65 tons) roughly the same armor as Object 260, you can imagine what kind of monster would Object 705A be.

Posted Image

This is where Yuri Pasholok’s post ends. In case you are wondering, what the hell is the M51 152mm gun: an experimental Soviet gun. Barrel length was L/50. The project was ready and considered in June 1947, modifications were requested and the modified project was ready in December 1947. The gun ballistics corresponded to the 152mm BR-2 gun and the project was made so a lot of parts would be unified with 152mm M-31 gun, designed for heavy SPG’s. In order to reduce the recoil, a massive muzzle brake (that absorbed 70 percent of recoil energy) was installed. At the point of its inception, the gun was the most powerful anti-tank gun in the world. However, no platform was ever created to put it on, repeating the history of 107mm ZIS-6.

So....its pretty much a 100ton IS-7 with better armor, and a MONSTER 152mm gun, the M51. As you can see from the picture above, its got an impressive looking muzzle brake not to mention its length is L/50...for a 152mm gun, thats awesome. Quite comparable to the BL-10 (I might think, might be wrong). But yeah, not much to add to the article.....what do you guys think? WoT-worthy? Or would it require too many nerfs to be implemented successfully?

FPSGHoST808 #2 Posted Nov 08 2013 - 20:30

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tier 11  :trollface:

Viperbird #3 Posted Nov 08 2013 - 20:34

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I could see it being like a Russian E-100 (as far as the gun goes)

M103_Longstreet #4 Posted Nov 08 2013 - 20:35

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View PostSgtShidner59, on Nov 08 2013 - 20:27, said:

So....its pretty much a 100ton IS-7 with better armor, and a MONSTER 152mm gun, the M51. As you can see from the picture above, its got an impressive looking muzzle brake not to mention its length is L/50...for a 152mm gun, thats awesome. Quite comparable to the BL-10 (I might think, might be wrong). But yeah, not much to add to the article.....what do you guys think? WoT-worthy? Or would it require too many nerfs to be implemented successfully?
Same ballistics as the BL-10.

Edited by T___A, Nov 08 2013 - 20:39.


Vaultin #5 Posted Nov 08 2013 - 20:37

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View PostViperbird, on Nov 08 2013 - 20:34, said:

I could see it being like a Russian E-100 (as far as the gun goes)

I thought that was why they moved the IS-4 from tier 9 to tier 10...

Fritz_Fried #6 Posted Nov 08 2013 - 20:43

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A Russian E-100.....I am in! And with a rear mounted turret, side scraping would be awesome. Also, not going to loose much in gun declination as Soviet tanks don't have much to begin with.

BountyHunter177 #7 Posted Nov 08 2013 - 20:56

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Well, after seeing the Waffle-Loader implemented... I could see this thing with little to no nerfs.

berree #8 Posted Nov 08 2013 - 21:01

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Yea ill take one

Nikolai_Mikoyan #9 Posted Nov 11 2013 - 07:23

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I don't know. Weighting that much and with that large gun, I kinda think it will lack the flexibility the IS-7 has

ComradeHX #10 Posted Nov 11 2013 - 07:43

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View PostNikolai_Mikoyan, on Nov 11 2013 - 07:23, said:

I kinda think it will lack the flexibility the IS-7 has
IS-7 has very little flexibility because of ground resistance.

stuardsride #11 Posted Nov 13 2013 - 17:47

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View PostComradeHX, on Nov 11 2013 - 07:43, said:

IS-7 has very little flexibility because of ground resistance.

where can i find how much ground reistance a tank has? thanks

ComradeHX #12 Posted Nov 13 2013 - 22:01

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View Poststuardsride, on Nov 13 2013 - 17:47, said:

where can i find how much ground reistance a tank has? thanks
http://wot-news.com/game/tankinfo/en
Broken terrain passability 3.1
Medium terrain passability 1.8
Hardened ground passability 1.3
In comparison, IS-8 feels a lot more agile despite a little less hp/t because:
Broken terrain passability 2
Medium terrain passability 1.3
Hardened ground passability 1.1
Effective hp/t is hp/t divided by terrain resistance.
T-62A has decimals for hard and medium terrain, so its effective hp/t is much greater than its value on paper.
Climbing speed is a bit different, IS-7 and IS-8 climb hill at about the same rate, though.

Edited by ComradeHX, Nov 13 2013 - 22:04.


Nikolai_Mikoyan #13 Posted Nov 14 2013 - 08:43

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View PostComradeHX, on Nov 11 2013 - 07:43, said:

IS-7 has very little flexibility because of ground resistance.

Sorry, my 'Flexibility' doesn't mean it's agile, but it means that it should be able to fill up several roles at a time. My IS-7 does have that flexibility, and that's pretty much all that's matter to me.

MalikCarr #14 Posted Nov 14 2013 - 09:37

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If they want to improve Russian T10 options, they should un-nerf the IS-7 first. Then we can talk about coming up with new tanks at the same level.




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