Jump to content
Sturgeon's House

Recommended Posts

There was a diagram from the LS-Dyna simulation software on some T-90S advertising poster, which suggests that the general armor layout of the T-90S' welded turret is identical to the T-72B turret; however armor thickness and materials might be different. I'll try to find the picture. The T-84 also seems to utilize the same armor as the T-80U, but with improved materials (much higher quality steel) and increased overall thickness (1,200 mm instead of 700-800 mm).

 

The T-72B doesn't use BDD though.

 

PS:

GEfekW4.jpg

 

The welded turret is supposedly made out of electro-slug refined steel, which provides 15% more protection than cast steel at the same weight/thickness. 

Share this post


Link to post
Share on other sites
16 hours ago, SH_MM said:

 

The welded turret is supposedly made out of electro-slug refined steel, which provides 15% more protection than cast steel at the same weight/thickness. 

 

15% more protection isn't that big of an advantage compared to what you can get from high hardness steel, let alone steel laminates.  And it's very expensive too, not really worth the 15% improvement.

 

But ESR steel does have one big advantage in armor; it spalls much less when hit.  So I would expect ESR steel to be used sparingly, and only on the inside of the crew compartment to minimize the danger of spall.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By RedEffect
      Greeting everyone, many of you are familiar with this very tank, and why shouldn't you be, it's a pretty good tank. Nevertheless, I am here to give a better insight into what this tank has to offer.
       
      Where should we start, I usually like to first start off with protection, if you don't mind.
       
      PROTECTION
       
      Unlike T-90A tank which we've seen enough in the past decade, T-90M has new "Relikt" Explosive Reactive Armor (ERA) which offers much better protection when compared to Kontakt-5 present on T-90A tanks.
      On top of having better ERA package, it is also much better covered in ERA, because those silly Shtora-1 dazzlers got removed and no longer take majority of space on the turret's front.
      As you can see, dazzlers took up a lot of space, on top of that, those ERA blocks between the gun and dazzlers could not have been made the same size as regular Kontakt-5 blocks, because of... dazzlers.
      T-90M only retained laser-warning receivers in the place of dazzlers, which gives a much better ERA coverage on the turret.
      As you can also see on the picture, the tank now has a proper gun shield  which should protect the gun mantlet against unwanted visitors (projectiles, ofc).
      The Upper Front Plate is also covered in "Relikt" ERA. 
       
      The side protection of the tank is a bit mysterious, the side of the hull, that is. While the older tanks, such as previously mentioned T-90A used visible ERA plates, there was nothing confusing about them, but there hasn't been any official information about side skirts having ERA, and when you look the skirts from the top, there is nothing to really indicate presence of ERA. 
      I do hope I am wrong about this one, since it would be strange to go from fully protected side armor with ERA panels to simple steel+rubber composition plates, which aren't even thick enough to begin with. I don't know, if someone has reliable information, please let me know, I will edit the post with it.
       
      The side of the turret is protected with 4S24 ERA blocks, side and rear of the engine compartment are protected with cage or "Slat" armor
       
      On top of external protection, T-90M has some cool features to protect the crew. The insides of the tank are covered with non-flammable aramid fabric which serves to catch fragments formed by projectiles or perforated armor. The autoloader's carousel also received additional protection to protect it against additional fragments. Additional protection is also ensured by moving extra ammunition to safe ammo rack with blow-out panels placed on the rear of the turret which is additionally protected with cage armor.
       
       
      FIREPOWER
       
      The tank has 2A46M-5 125mm gun, which is the latest gun from the 2A46M series. The tank received a new feature which was not previously seen on Russian tanks, and that is Muzzle Reference Sensor (MRS) which takes the information of barrel changing its form in cold or hot weather condition and brings them to ballistic computer for more accurate shooting. The ammunition it can fire is of course the best Russia has to offer for the gun, and those are 3BM59 and 3BM60 APFSDS projectiles. There are also reports of 3VOF128 HEF projectile entering service with Russian army, which can also airburst and detonate after penetration. Other projectiles include HEAT and ATGMs.
       
      The Fire Control System is really nice. It of course, has Sosna-U main gun sight, which has automatic tracking ability and uses 2nd generation Catherine FC Thermal Imaging System. The commander has much better time since unlike previous Russian tanks he now has his own Thermal Viewer  connected to the 12.7mm Kord HMG (unlike T-90MS (SM) domestic variant has 12.7mm). CITV incorporates Catherine XP Thermal Imaging System which is 3rd generation TIS, which is better than what most modern tanks have. In addition, both gunner and commander can access back-up sight located next to the Sosna-U sight. Commander has access to new multifunction display which on top of other things, show location of the tank. The tank has YeSU-TZ Battle Management System which allows communication with all units on the present battlefield, making warfare much easier. Another small, but important improvement is the commanders cupola, unlike older T-90A, commander now has full 360deg view with larger vision blocks all around the cupola. In addition, the hatch can be rotated for different purposes and there are 4 cameras for additional 360deg view.
       
       
      MOBILITY
       
      The tank weights 48t and it is powered with new V-92S2F 1130hp diesel engine, with 2000rpm and maximum torque of 4521Nm (pretty neat). In addition to such a good engine, the tank received automatic transmission APP-172  which is VERY NICE. On top of that, the tank received an APU (Auxiliary Power Unit) which reduces the fuel consumption when the tank is idle by powering the electrical systems.

      *WILL CONTINUE WITH THE POST LATER*
    • By Militarysta
      Well known APC Rosomak in Afgan. version armour:
       

       
      Orginally it was israeli but after that it was produced by polish company "Mikanit":
      http://www.mikanit.com.pl/produkty/oslony-balistyczne.html
       
      Now, we know patent draws and description:
       

       

       
       
      Composition:
      2 mm HHS + air + 6,7 mm HHS + 5 mm composite + 5 mm composite + 5 mm composite + 3,5 mm HHS + 35 mm air gap + 3,5 mm HHS + 5 mm composite + 5 mm composite + 3,5 mm HHS + 35 mm air gap  + 20 mm aluminium + 5 mm aluminium.
      There is possibility that layout could be 4+3 (composite) and single composite layer can have up to 6mm thick and single HHS layer can have  4mm thickness. Layers can be separate up to 45mm.
       
      Accoding to manufacurer this armour can protect against ATGM and RPG's up to 500mm RHA penetration.
       
      Whole armour is combat proven in Afganistan - there are known some "Rosomak" whit 3x RPG's hits diretly in to this armour - no penetration at all, no engine damage. 
       
       
       
       
       
    • By Sturgeon
      I'll start off with a couple Pathe videos:


       

       

       

    • By MrMartin
      Guide "How to tell the difference between T-90 and T-90A".

      These are the most visible differences between T-90 and T-90A.
      I made this guide because I haven't seen any on this topic and majority of people don't even know there are these two variants (there are more) or don't know what is different between them, so I wanted to enlighten people.
      This guide is not 100% true because there are some "hybrid" T-90 which incorporate parts from both models, for example T-90A chassis (body, new tracks and engine)
      with T-90 cast turret = T-90K http://live.warthunder.com/post/599752/en/
      I didn't incorporated export(T-90S) models because they can be distinguished very easily by the complete lack of Shtora-1 EOCMDAS or by the missing MTShU-1-7 modulator such as T-90SA for Algeria, Armenia and Azerbaijan.
       
      I am open to any suggestion or to constructive criticism. 
       
      I hope this will help.
       







       
×