General AFV Thread

[SuperComrade]

War Thunder devblog on the Conqueror's turret armour

http://warthunder.com/en/devblog/current/870

[LoooSeR]

 

GRU from Otvaga said that in gun mantler there is a target tracker of some sorts.

 

 

 

 

 

[Belesarius]

.gif similar to Priory's vid.

 

[LoooSeR]

Cold Response 2016

 

 

[Belesarius]

http://armyrecognition.com/february_2016_global_defense_security_news_industry/rheinmetall_future_mbt_main_battle_tank_mgsc_main_ground_combat_system_with_130mm_cannon_11802161.html

 

Rheinmetall is apparently working on a new 130mm gun for the Leo 2/LeClerc replacement.

 

I had heard that they were working on a 140mm some time ago to upgun the Leo 2?

[Belesarius]

Yay. Snowmobiles for our Russian friends.

 

http://www.armyrecognition.com/weapons_defence_industry_military_technology_uk/russian_armed_forces_has_received_ten_snegohod_a-1_snowmobile_vehicles_for_specail_operations_tass_12102162.html

[Collimatrix]

http://armyrecognition.com/february_2016_global_defense_security_news_industry/rheinmetall_future_mbt_main_battle_tank_mgsc_main_ground_combat_system_with_130mm_cannon_11802161.html

 

Rheinmetall is apparently working on a new 130mm gun for the Leo 2/LeClerc replacement.

 

I had heard that they were working on a 140mm some time ago to upgun the Leo 2?

 

it actually got test mounted on a leo 2:

 

There was the 140mm gun actually mounted to the Abrams CATTB:

 

The 140mm proposed for the STRV-2000:

And I've heard of a British 140 and a Ukrainian 140mm as well.  I think all 5 are different guns, though perhaps the Swedish and Swiss/German ones are the same weapon.

[SuperComrade]

How much difference in weight of gun and/or ammunition would there be between say a 155 mm or 140 mm gun of roughly the same power?

[Walter_Sobchak]

There was the 140mm gun actually mounted to the Abrams CATTB:

 

 

It's good to know that even the Abrams tank when through an awkward fringe clothing stage in the 90's.

 

[Scolopax]

Don't forget about Thumper!

 

[Collimatrix]

How much difference in weight of gun and/or ammunition would there be between say a 155 mm or 140 mm gun of roughly the same power?

 

As far as tank automotive performance is concerned it's pretty trivial.  The gun and ammo are one of the lightest things on a tank, and usually account for 3-7% of the total weight of the tank, per Ogorkiewicz.  Even if the gun were twice as heavy it would not constitute a large proportional increase in mass.

 

Indirectly it could make the tank a lot heavier because ammo is very bulky.  You can see how much longer the turret bustle is on CATTB.  If it's armored to any degree that's going to add much more weight than the added mass of the bigger gun.  For ammo that big and heavy an autoloader would be a good idea.  But then again human loaders did manage in the SU-152 firing brass cased ammo and full caliber AP, so I don't think an autoloader would be absolutely necessary.

[LoooSeR]

   Speaking about size - just look at T-95 or Nota tanks to see how much tanks become bigger when designers put 152 mm high-power gun and autoloader in their MBTs. Even Object 299 was still bigger than any previous T-XX tanks, although it was most "dense" in sense of layout.

[SuperComrade]

As far as tank automotive performance is concerned it's pretty trivial.  The gun and ammo are one of the lightest things on a tank, and usually account for 3-7% of the total weight of the tank, per Ogorkiewicz.  Even if the gun were twice as heavy it would not constitute a large proportional increase in mass.

 

Indirectly it could make the tank a lot heavier because ammo is very bulky.  You can see how much longer the turret bustle is on CATTB.  If it's armored to any degree that's going to add much more weight than the added mass of the bigger gun.  For ammo that big and heavy an autoloader would be a good idea.  But then again human loaders did manage in the SU-152 firing brass cased ammo and full caliber AP, so I don't think an autoloader would be absolutely necessary.

The reason I'm asking is that maybe it might be possible to have commonality with say a regular 155 mm howitzer on SP Guns, at least for non armour-piercing rounds if the weight penalty is not too high?

[LoooSeR]

Why you are building APC with wheels, and then try to put tracks on it?

 

[Scolopax]

Why you are building APC with wheels, and then try to put tracks on it?

 

And only for two wheels on one side!

 

Reminded of this though:

[Priory_of_Sion]

Why you are building APC with wheels, and then try to put tracks on it?

"Smart Combat"

[LoooSeR]

Take into account that those wheels are used for turning... 

[LoooSeR]

[LoooSeR]

[LoooSeR]

[Collimatrix]

The reason I'm asking is that maybe it might be possible to have commonality with say a regular 155 mm howitzer on SP Guns, at least for non armour-piercing rounds if the weight penalty is not too high?

 

Getting the rifling twist rates to play nice with both types of round could be interesting, but I think you could reasonably re-use the 155mm projectiles if not the propellant charges.

[LoooSeR]

http://andrei-bt.livejournal.com/406603.html

 

Walter blog linked by comrade The Main Kharkovite, aka Andrey-BT.   

[LoooSeR]

Prototype of Low profile RCWS for Abrams

 

 

[Belesarius]

Poland is going to be replacing their BRDM-2s with a new design apparently.

 

http://defense-update.com/20150527_lotr.html

[Belesarius]

 

 

 

Poland has officially ordered 1000 Spike missiles for their IFVs.

 

Newest version will have a remote turret with a Mk44 30mm chain gun and two Spike missiles, older versions will have Spike missiles retrofitted.