T-90 Tank

Waylander

Defense Professional
Verified Defense Pro
You will still have those nasty aft caps when you go to one piece combustable cartridges, its fun watching the loader throw them out the loaders hatch so he doesn`t burn his legs on the flash rods. :)
Because of that a real L/44 has a trap basket... ;)
 

eckherl

The Bunker Group
Verified Defense Pro
Because of that a real L/44 has a trap basket... ;)
Yes, but it is so small and you have to empty it quite often, may be okay on the gunnery range but get in some hostile action and you may find that your loader is overwhelmed with other priorities.:p:
 

Waylander

Defense Professional
Verified Defense Pro
If it's full the rounds just fall to the floor like they do in the Abrams.
If they then burn his legs he has other priorities. ;) :p:
 

DavidDCM

The Bunker Group
Verified Defense Pro
That darn basket can jam the complete maingun if it's not emptied often enough. And if this happens, the sh*t really hit the fan cause the loader can not fix this malfunction and the maingun is effectively out of order for the remainder of the battle.
 

Waylander

Defense Professional
Verified Defense Pro
Huh?
That's a damn ugly incident then.
I know that the manual says that it should be emptied as soon as possible (meaning after every engagement) but often enough the aft caps start falling directly to the floor even before the basket is close to being full.
Not even after a full battle load (aka no ready ammo left) this ever caused a problem.
 

eckherl

The Bunker Group
Verified Defense Pro
That darn basket can jam the complete maingun if it's not emptied often enough. And if this happens, the sh*t really hit the fan cause the loader can not fix this malfunction and the maingun is effectively out of order for the remainder of the battle.
I have never had that happen, are we talking counter recoil. (gun out of recoil mechanism) :shudder
 

DavidDCM

The Bunker Group
Verified Defense Pro
I've seen this happening twice during my service time with the Leo 2 (which lasted only 6 month as I was a mere conscript). If the basket becomes to full, and the maingun is fired it can happen that in that millisecond when it is in the most backward position an old aft cap (not the one fired in that moment) gets stuck somewhere in the whole mechanism making it impossible for the maingun to fully return to the forward position. When this happens the breech can not close and the gun can not be loaded anymore.

The loader has no possibility to remove that stuck aft cap. The procedure our commanders made in this case was to look for a big, big tree and drive the tank slowly with the maingun against the tree trunk so that the maingun is pushed back by that force. Then the stuck aft cap can be removed by the loader. But how can you do this in midst of battle?
 

Waylander

Defense Professional
Verified Defense Pro
You have bad luck then. ;)
I haven't experienced that once and also know nobody who had the same problem.
Looks like one should take the manual seriously this time. :D

Back to topic.
 

Tavarisch

New Member
The T-90 is seriously lacking in armor. 720mm+ with ERA is only 3/4s of what the Abrams has in terms of thickness. The M829A3 can penetrate near 800mm of RHA, with defeating Kontakt-5 in mind.

I don't know how Shtora makes up for this. Sure, it could jam and confuse ATGMs and missiles, but I don't think it'll stop a sabot from hitting the tank. Do the laser warning systems detect laser rangefinders? I guess this is one of the few ways that could ensure that the T-90 doesn't get hit in the first place, since the Abrams FCS wouldn't be able to find the range and therefore fully compute to compensate the gun as necessary.

At the present, are there are any good efficient and cheap alternatives to increase the defense of this tank? Relikt and Kaktus are claimed to be better ERA modules, though I haven't seen them in any pictures recently save for the now-dead Ob 640.
 

Waylander

Defense Professional
Verified Defense Pro
Yes, Laser warning receivers detect laser range finders.
They can be set in different modes. The first being that they only show the direction of the incoming laser, the second being to rotate the turret automatically to the direction and the third being that the system also automatically fires the (IR) smoke launchers.

They have their merit but also can create some problems. One should also remember the times involved.
After a tank gunner lasers his target and gets a good return echo he normally fires immediately.
The round is travelling at roughly 1600-1700 km/h...
Even a smoke screen or some rough maneuvering is hardly going to save you from the rod.
If the enemy tank doesn't fires immediately but goes on tracking you it may save your live.
And they don't prevent the gunner from getting the range in the first place.

It can also create other problems. Some dismounts may very well just laser the enemy the enemy tanks and force them to rotate their turrets and expend their smoke launchers into the wrong direction while the tanks hit them from the other side.

Nevertheless they are an interesting piece of kit and may very well be an advantage in certain situations.

Laser detection systems may very well also be an integrated part of an active or passive protection system.
 

eckherl

The Bunker Group
Verified Defense Pro
The T-90 is seriously lacking in armor. 720mm+ with ERA is only 3/4s of what the Abrams has in terms of thickness. The M829A3 can penetrate near 800mm of RHA, with defeating Kontakt-5 in mind.

I don't know how Shtora makes up for this. Sure, it could jam and confuse ATGMs and missiles, but I don't think it'll stop a sabot from hitting the tank. Do the laser warning systems detect laser rangefinders? I guess this is one of the few ways that could ensure that the T-90 doesn't get hit in the first place, since the Abrams FCS wouldn't be able to find the range and therefore fully compute to compensate the gun as necessary.

At the present, are there are any good efficient and cheap alternatives to increase the defense of this tank? Relikt and Kaktus are claimed to be better ERA modules, though I haven't seen them in any pictures recently save for the now-dead Ob 640.
The M829A3 represents a design that is able to perform against Relikt and Kaktus, this was the U.S reasoning to going with this projectile, M829A2 was designed for the purpose of K-5 at extended ranges.

Shtora system suffers from insufficent power supply for newer ATGW systems, thus some of the reasons why Russia and Ukraine have not had very good luck on exporting this system, China tested it and decided to go their own route with the Indians also deciding to find something better, does this mean that it is complete garbage, my answer would be no, the Russians are pretty good at sticking to technologie projects until they can fine tune them. This system works better on older generation ATGM systems and laser detection when the vehicle is painted, I agree with Waylander that this system having the capabilities on saving a tank in a direct gun fight with another capable tank will be slim to none due to how fast the magic rod will be coming after that crew lases for range confirmation and ballistic solution. Waylander is also correct on how this system works during different modes of operation.

There is a good chance that the Algerian T-90SA has Relikt armor package with what I suspect the Russians are also starting to field on older T-72 and newer T-90 series tanks, Kaktus would involve a different turret structure design.
 

Waylander

Defense Professional
Verified Defense Pro
BTW, is it to lase something or to laser something?

As for painting a modern T-90.
I wouldn't want to be a dismount who wants to paint a modern T-90 with a laser designator.
With the integration of the modern TIs from Thales in combination with the laser warning system they have a good chance of finding the painter and throw a HE-FRAG into his direction.
 

eckherl

The Bunker Group
Verified Defense Pro
BTW, is it to lase something or to laser something?

As for painting a modern T-90.
I wouldn't want to be a dismount who wants to paint a modern T-90 with a laser designator.
With the integration of the modern TIs from Thales in combination with the laser warning system they have a good chance of finding the painter and throw a HE-FRAG into his direction.
It is to *lase* and blaze, proper gunner announcements during firing command sequence is:

Identified, lasing, on the way

Yes, this would not be a good thing and pretty much shows some of Russia`s reasoning on developing such a system.
 

Duffy

New Member
BTW, is it to lase something or to laser something?

As for painting a modern T-90.
I wouldn't want to be a dismount who wants to paint a modern T-90 with a laser designator.
With the integration of the modern TIs from Thales in combination with the laser warning system they have a good chance of finding the painter and throw a HE-FRAG into his direction.
How sensitive are these Laser warning receivers?. If one were to range an object behind the tank be it another tank/ APC whatever. Would the receivers pick that up and turn the turret in the opposite direction. Or is there a threshold for back scatter.
 

eckherl

The Bunker Group
Verified Defense Pro
How sensitive are these Laser warning receivers?. If one were to range an object behind the tank be it another tank/ APC whatever. Would the receivers pick that up and turn the turret in the opposite direction. Or is there a threshold for back scatter.

The vehicle has to be painted directly with the laser, be it direct line or self emitting source. Russian system operates utilizing two different types of sensors:

Wide sensor - offers coverage from each sensor of 135 degrees horizontal.
Fine sensor - offers coverage of 45 degrees horizontal and -5 to 25 degrees in vertical.
 

Tavarisch

New Member
BTW, is it to lase something or to laser something?

As for painting a modern T-90.
I wouldn't want to be a dismount who wants to paint a modern T-90 with a laser designator.
With the integration of the modern TIs from Thales in combination with the laser warning system they have a good chance of finding the painter and throw a HE-FRAG into his direction.
That just reminds me, is it standard practice in the Russian Army to have it's tanks loaded with a round prior to battle? Being auto-loaded and all, unloading the already loaded shell is impossible from what I've read. ( I'm not so sure about manual loaders either, but I guess it's equally taxing to unload the shell)

What happens, if say, the T-90 is painted and it turns to the direction of the painter but has a Sabot round loaded?

Or do they leave the main gun empty until they've found a target for this purpose?
 

eckherl

The Bunker Group
Verified Defense Pro
Its called battle carry, everyone does it, round carried would be sabot and that will be what gets initially launched in your direction due to maybe having to unload a hot gun and or, because it is time consuming.
 
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Tavarisch

New Member
Its called battle carry, every does it, round carried would be sabot and that will be what gets initially launched in your direction due to maybe having to unload a hot gun and because it is time consuming.
I see. So whether gunners like it or not, they're gonna have to fire that sabot anyway I guess...
 
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