125mm APERS And Special Rounds

125MM APERS AND SPECIAL ROUNDS

3V-21

3V-21 detonator

3OF-26

3OF-26 HE-FRAG round

HE-FRAG rounds:

Common properties:

Projectile mass        ~23,000g
Charge mass            3,148g
Extended fin span      356mm
Muzzle velocity        850m/s
Max.dispersion         0.23mil
Barrel pressure        387.4MPa
EFC rating             1
Rear tracer

Detonator
  Designation          V-429E (3V-21)
  Mass                 430g
  Reliability          0.98
  Guaranteed life      15 years
  Type                 point detonating (PD)

3VP-24 (3P-23 projectile) (DOI unknown)
Practice HE-FRAG round (same mass and behaviour as HE-FRAG, but inert)
3VOF-22 (3OF-19 projectile) (DOI 1962)
Charge: TNT
3VOF-36 (3OF-26 projectile) (DOI est.1970)
Charge: A-IX-2 (flegmatized RDX with aluminum) 3,400g

Ainet fuse-setter

Ainet fuse-setter

Ainet system:

T-80UK and T-90 MBTs are equipped with Ainet system that allows to electronically fuse HE-FRAG rounds to explode at predetermined moment of flight. In order to use the system the gunner must lase the target before loading the round into the breech. The round is passed by the auto-loader through an automatic fuse setter, which sets the fuse to explode at the correct distance; the fused round is then loaded into the gun and is ready to be fired. This system allows to efficiently use HEF rounds against hovering helicopters as well as infantry and light armor in entrenched positions, out to 4 km and more. The effective fragmentation radius and range consistency improve three-fold, while ammunition expenditure for a typical mission decreases two-fold. All HE-FRAG rounds are compatible with this system, provided a new electronic detonator is used instead of the standard V-429E.

Canister round:

3USh-3 (3Sh-7 projectile) (DOI UNKNOWN)
4700-4800 elements of 1.26g; muzzle velocity 1000m/s; sweep sector 9°; fatal range 200-500m

Blank round:

4Kh-33 (DOI UNKNOWN)
Consists of standard propellant charge and a further charge simulating auxiliary propellant of an APFSDS round to allow for sufficient recoil to allow gun automatics to function properly.