New Main Guns - 125mm Vitiaz, 140mm Bagira

[Guest Bonzo Mad]

"Paul Lakowski

Gunner

 

Heres a quote from another board.

 

 

quote:

 

The new 125mm gun, known as Vitiaz, is 6m long. When firing an APFSDS projectile, the muzzle velocity is 2,030m/s(!). This will penetrate 380mm of steel armour. Doesn't sound impressive, but this is at an angle of 60 degrees! Range at which this is achieved isn't given though.

 

The other gun is 140mm, known as Bagira, and is 7m(!) long. When firing an APFSDS projectile, the muzzle velocity is 1870m/s. This will penetrate 450mm of armour at a 60 degree angle!

Compare this with the newer Russian 3BM-42 (not the newest M version) APFSDS projectile, which penetrates 230mm at an angle of 60 degrees. As you can see, the 140mm Ukrainian gun easily surpasses the current Russian 125mm gun in performance, and these penetration ratings would place it even quite a bit ahead of the 120mm NATO gun."

 

Ive been all over the web and still got nothing on this. Can u guys provide more information on these two beauties???

[fletcher]

Originally posted by Bonzo Mad:

"Paul Lakowski

Gunner

 

As you can see, the 140mm Ukrainian gun easily surpasses the current Russian 125mm gun in performance, . . ."

 

 

Until it explodes and kills the crew that is.

Next maybe they can impress us all with a 50m long, 200mm gun.

[Guest Amafister]

Reality maybe that you see high protection platforms under

gunned to utilise in service flexible ammunition load outs to suit mission specific tasking as opposed to a arm wrestle on a battle field.

 

Surgical operations as a part of the bigger campaign require tactical excellence to prevent embroiling in drawn out political losses. Asymetric conflicts aren't about he who has the biggest sling shot wins.

[Guest kicker1]

These bigger guns sound nice, but what about the loss of reserve ammo, and extra weight. Sounds to me like the limits have been reached

[Davin]

Originally posted by Bonzo Mad:

"Paul Lakowski

Gunner

 

Heres a quote from another board.

 

 

quote:

 

Do you have Vitiaz & Bagira's pictures?

[Paul Lakowski]

Originally posted by Davin:

Originally posted by Bonzo Mad:

"Paul Lakowski

Gunner

 

Heres a quote from another board.

 

 

quote:

 

Do you have Vitiaz & Bagira's pictures?

 

No I have not seen any pictures.JANES A&A upgrades 2000 mentions them under Ukraine and adds the Bagira fires a 7kg penetrator [projectile] and 9kg projectile [Projectile and sabot].THe MV is 1870m/s and this produces 15.74Mj,tHat yields 450mm @ 60° [range not given] .

 

Vitiaz fires a 5kg projectile with 2kg sabot @ 2030m/s resulting in 14.2Mj and penetration of 380mm @ 60° [range not given] .

[Textor]

Originally posted by Bonzo Mad:

The new 125mm gun, known as Vitiaz, is 6m long. When firing an APFSDS projectile, the muzzle velocity is 2,030m/s(!).

 

What propellant is this gun supposed to use?

 

Usually, the maximum muzzle velocity achievable with conventional solid propellants is said to be around 1,600 to 1,800 meters/second. This limit is imposed by the speed of sound in the hot powder gases.

[Sebastian Balos]

Originally posted by Textor:

What propellant is this gun supposed to use?

 

Usually, the maximum muzzle velocity achievable with conventional solid propellants is said to be around 1,600 to 1,800 meters/second. This limit is imposed by the speed of sound in the hot powder gases.

 

 

 

IIRC, the highest muzzle velocity achieved with conventional propellant was around 2700 m/s, but the efficiency was very low, so the optimum with conventional propellants is around 1600-1700 m/s.

[Lucky]

Awesome. Don't mind what those trash-talkers say, if these were American guns they would be all over them like a fat kid on butter. Full blown case of NIH.

 

Roughly how much would these guns weigh? Would they be capable of frontally penetrating a modern western AFV frontally then?

[Paul Lakowski]

Weight in the A&A upgrades 2000 is not stated but they do report that the guns can be mounted on pretty much any modern russian/ukranian tank [T-64/72/80UD & T-84].

 

The penetration figures are stated in the earlier post so it looks like they should be able to penetrate at combat ranges...but such figures require more info to be taken at face value[Whats the L/d , diameter, penetrator materials, V drop ? etc].

[alejandro_]

Any update on the status of these guns? is Vitiaz produced in series now?

[MicroMark]

something here:

http://www.network54.com/Forum/211833/thread/1241630528/1241863361/First+Ukrainian+Oplot-M+tanks+to+hit+service+this+year

 

Oplot-M tank, 10 ordered for Ukrainian 17th tank brigade, c2009.

 

http://www.militaryphotos.net/forums/showthread.php?150771-Upgraded-Oplot-M-Tank-of-Ukrainian-Army

 

and

http://www.militaryphotos.net/forums/showthread.php?158559-Oplot-tanks-hit-service-with-the-Ukrainian-Army

 

armed with the 125mm gun.

but it seems they might not have even received the 10 tanks as of 2010.

 

some technical stats on the tank here:

http://www.military-today.com/tanks/oplot_m.htm

 

Mark